Curriculum Vitae
John Keith Hewitt

last update 12/15/10

Bibliography	Education	Academic Appointments
Visiting Appointments	Memberships	Awards
Research funds	Major Committees and Honors	Other significant scholarly or research experience
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BIBLIOGRAPHY

Papers (in reverse chronological order)

2010

Munn, M.A., Stallings, M.C., Rhee, S.H., Sobik, L.E., Corley, R.P., Rhea, S.A., Hewitt, J.K. (2010). Bivariate analysis of disordered eating characteristics in adolescence and young adulthood. The International Journal of Eating Disorders, 43(8), 751-61.PubMed PMID 20957703.

Haberstick, B.C., Ehringer, M.A., Lessem, J.M., Hopfer, C.J., Hewitt, J.K. (2010). Dizziness and the genetic influences on subjective experiences to initial cigarette use. Addiction, Oct 19. [Epub ahead of print] PubMed PMID 20955488.

Haberstick, B.C., Zeiger, J.S., Corley, R.P., Hopfer, C.J., Stallings, M.C., Rhee, S.H., Hewitt, J.K. (2010). Common and drug-specific genetic influences on subjective effects to alcohol, tobacco and marijuana use. Addiction, Oct 19. [Epub ahead of print] PubMed PMID 20955487.

Button, T.M., Stallings, M.C., Rhee, S.H., Corley, R.P., Hewitt, J.K. (2010). The Etiology of Stability and Change in Religious Values and Religious Attendance. Behavior Genetics, Aug 15. [Epub ahead of print] PubMed PMID 20711848.

Cosgrove, V.E., Rhee, S.H., Gelhorn, H.L., Boeldt, D., Corley, R.C., Ehringer, M.A., Young, S.E., Hewitt, J.K., (2010). Structure and Etiology of Co-occurring Internalizing and Externalizing Disorders in Adolescents. Journal of Abnormal Child Psychology, Aug 4. [Epub ahead of print] PubMed PMID 20683651.

Button, T.M., Hewitt, J.K., Rhee, S.H., Corley, R.P., Stallings, M.C. (2010). The moderating effects of religiosity on the genetic variance of problem alcohol use. Alcoholism, Clinical and Experimental Research, Sep 1, 34(9), 1619-24. PubMed PMID 20569244.

Sakai, J.T., Boardman, J.D., Gelhorn, H.L., Smolen, A., Corley, R.P., Huizinga, D., Menard, S., Hewitt, J.K., Stallings, M.C. (2010). Using trajectory analyses to refine phenotype for genetic association: conduct problems and the serotonin transporter (5HTTLPR). Psychiatric Genetics, 20(5), 199-206. PubMed PMID: 20421847.

Zeiger, J.S., Haberstick, B.C., Corley, R.P., Ehringer, M.A., Crowley, T.J., Hewitt, J.K., Hopfer, C.J., Stallings, M.C., Young, S.E., Rhee, S.H. (2010). Subjective effects to marijuana associated with marijuana use in community and clinical subjects. Drug and Alcohol Dependence, Jun 1, 109(1-3), 161-166. PubMed PMID 20149559.

Haberstick, B.C., Lessem, J.M., McQueen, M.B., Boardman, J.D., Hopfer, C.J., Smolen, A., Hewitt, J.K. (2010). Stable genes and changing environments: Body mass index across adolescence and young adulthood. Behavior Genetics, Jan 20. [Epub ahead of print] PMID: 20087641.

Schulz-Heik, R.J., Rhee, S.H., Silvern, L.E., Haberstick, B.C., Hopfer, C., Lessem, J.M., Hewitt, J.K. (2010). The association between conduct problems and maltreatment: testing genetic and environmental mediation. Behavior Genetics, 40(3), 338-348. PubMed PMID 20024671.

2009

Brant, A.M., Haberstick, B.C., Corley, R.P., Wadsworth, S.J., DeFries, J.C., & Hewitt, J.K. (2009). The Developmental Etiology of High IQ. Behavior Genetics, 39(4), 393-405. . PMID: 19377873

Button, T.M.M., Stallings, M.C., Rhee, S.H., Corley, R.P., Boardman, J.D., & Hewitt, J.K. (2009). Perceived peer delinquency and the genetic predisposition for substance dependence vulnerability. Drug and Alcohol Dependence, 100(1-2):1-8. PMID: 19008053

Friedman NP, Corley RP, Hewitt JK, Wright KP Jr. (2009).Individual differences in childhood sleep problems predict later cognitive executive control. Sleep. 2009 Mar 1;32(3):323-33. PMID: 19294952

Gelhorn, H., Sakai, J., Mikulich-Gilbertson, S., Stallings, M., Young, S., Rhee, S.H., Hopfer, C., Hewitt, J., Crowley, T. (2009). An item response theory analysis of DSM-IV conduct disorder. Journal of the American Academy of Child and Adolescent Psychiatry. 2009 Jan;48(1):42-50. PMID: 19034046

Hartman, C.A., Hopfer, C.J., Haberstick, B., Rhee, S.H., Crowley, T.J., Corley, R.P., Hewitt, J.K., Ehringer, M.A. (2009). The association between cannabinoid receptor 1 gene (CNR1) and cannabis dependence symptoms in adolescents and young adults. Drug Alcohol Dependence, Sept 1, 104 (1-2), 11-6. PMID: 19443135

Haworth, C.M.A., Wright, M.J., Luciano, M., Martin, N.G., de Geus, E.J.C., van Beijsterveldt, C.E.M., Bartels, M., Posthuma, D., Boomsma, D.I., Davis, O.S.P., Kovas, Y., Corley, R.P., DeFries, J.C., Hewitt, J.K., Olson, R.K., Rhea, S.-A., Wadsworth, S.J., Iacono, W.G., McGue, M., Thompson, L.A., Hart, S.A., Petrill, S.A., & Lubinski, D., & Plomin, R. (2009). The heritability of general cognitive ability increases linearly from childhood to young adulthood. Molecular Psychiatry, June 2, 1-9. PMID: 19488046

Haworth, C.M.A., Wright, M.J., Martin, N.W., Martin, N.G., Boomsma, D.I., Bartels, M, Posthuma D., Davis, O.S.P., Brant, A.M., Corley, R.P., Hewitt, J.K., Iacono, W.G., McGue, M., Thompson, L.A., Hart, S.A., Petrill, S.A., Lubinski, D., Plomin, R. (2009). A twin study of the genetics of high cognitive ability selected from 11,000 twin pairs in six studies from four countries. Behavior Genetics, 39(4), 359-370. PMID: 19381794

Palmer RH, Young SE, Hopfer CJ, Corley RP, Stallings MC, Crowley TJ, Hewitt JK. (2009). Developmental epidemiology of drug use and abuse in adolescence and young adulthood: Evidence of generalized risk. Drug Alcohol Depend. 2009 Jun 1;102(1-3):78-87. PMID: 19250776

Schulz-Heik, J.R., Rhee, S.H., Silvern, L.E., Haberstick, B.C., Hopfer, C., Lessem, J.M., & Hewitt, J.K. (2009). The association between conduct problems and maltreatment: Testing genetic and environmental mediation. Behavior Genetics, Dec 19. [Epub ahead of print] PMID: 20024671

Schulz-Heik, J.R., Rhee, S.H., Silvern, L.E., Lessem, J.M., Haberstick B.C., Hopfer, C., & Hewitt, J.K. (2009). Investigation of genetically mediated child effects on maltreatment. Behavior Genetics, 39(3), 265-276. PMID: 19283463

Young, S.E., Friedman, N.P., Miyake, A., Willcutt, E.G., Corley, R.P., Haberstick, B.C., & Hewitt, J.K. (2009). Behavioral disinhibition: Liability for externalizing spectrum disorders and its genetic and environmental relation to response inhibition across adolescence. Journal of Abnormal Psychology 118(1), 117-130. PMID: 19222319

2008

Boardman, J.D., Saint Onge, J.M., Haberstick, B.C., Timberlake, D.S., & Hewitt, J.K. (2008). Do schools moderate the genetic determinants of smoking? Behavior Genetics, 38, 234-246. | pubmed abstract |

Corley RP, Zeiger JS, Crowley T, Ehringer MA, Hewitt JK, Hopfer CJ, Lessem J, McQueen MB, Rhee SH, Smolen A, Stallings MC, Young SE, Krauter K. Association of candidate genes with antisocial drug dependence in adolescents. Drug Alcohol Depend. 2008 Mar 31; [Epub ahead of print]  | pubmed abstract |

Faith, M.S., Rhea, S.A., Corley, R.P., & Hewitt, J.K. (2008). Genetic and shared environmental influences on children’s 24-h food and beverage intake: Sex differences at age 7 y1-3. American Journal of Clinical Nutrition, 87(4), 903-11 PMID: 18400713

Friedman, N.P., Miyake A., Young, S.E., DeFries J.C., Corley, R.P., & Hewitt, J.K. (2008). Individual differences in executive functions are almost entirely genetic in origin. Journal of Experimental Psychology and Genetics, 137(2), 201-225. PMID: 18473654

Gelhorn, H., Hartman, C., Sakai, J., Stallings, M., Young, S., Rhee, S., Corley, R., Hewitt, J., Hopfer, C., Crowley, T. (2008) Toward DSM-V: An Item Response Theory analysis of DSM-IV alcohol abuse and dependence criteria in adolescents. Journal of the American Academy of Child and Adolescent Psychiatry. 47(11):1329-39. PMID: 18827724

Haberstick,, B.C., Timberlake, D., Hopfer, C.J., Lessem, J.M., Ehringer, M.A., Hewitt, J.K. (2008). Genetic and environmental contributions to retrospectively reported DSM IV childhood attention deficit hyperactivity disorder. Psychological Medicine, 38(7), 1057-1066. PMID: 17892623

Hartman CA, Gelhorn H, Crowley TJ, Sakai JT, Stallings M, Young SE, Rhee SH, Corley R, Hewitt JK, Hopfer CJ (2008). Item response theory analysis of DSM-IV cannabis abuse and dependence criteria in adolescents. J Am Acad Child Adolesc Psychiatry, 47(2), 165-173. | pubmed abstract |

Schlaepfer, I.R., Hoft, N.R., Collins, A.C., Corley, R.P., Hewitt, J.K., Hopfer, C.J., Lessem, J.M., McQueen, M.B., Rhee, S.H., & Ehringer, M.A. (2008). The CHRNA5/A3/B4 gene cluster variability as an important determinant of early alcohol and tobacco initiation in young adults. Biological Psychiatry,1, 63(11), 1039-1046. PMID: 18163978

Schulz-Heik, R.J., Maentz, S.K., Rhee, S.H., Gelhorn, H.L., Young, S.E., Stallings, M.C., Timberlake, D., Smolen, A., Stetler, G.L., Sakai, J.T., Crowley, T.J. (2008). Case-control and within-family tests for an association between conduct disorder and DAT1. Psychiatric Genetics, 18, 17-24. PMID: 18197081

Subbarao, A., Rhee, S.H., Young, S.E., Ehringer, M.A., Corley, R.P., Hewitt, J.K. (2008). Common Genetic and Environmental Influences on Major Depressive Disorder and Conduct Disorder. J Abnorm Child Psychol., 36, 433 - 444. | pubmed abstract |

Zeiger, J.S., Haberstick, B.C., Schlaepfer, I., Collins, A.C., Corley, R.P., Crowley, T.J., Hewitt, J.K., Hopfer, C.J., Lessem, J., McQueen, M.B., Rhee, S.H., & Ehringer, M.A. (2008). The neuronal nicotinic receptor subunit genes (CHRNA6 and CHRNB3) are associated with subjective responses to tobacco. Human Molecular Genetics, 14(5), 724-734. | pubmed abstract |

2007

Button, T.M., Corley, R.P., Rhee, S.H., Hewitt, J.K., Young, S.E., Stallings, M.C. (2007). Delinquent peer affiliation and conduct problems: A twin study. Journal of Abnormal Psychology, 16(3), 554-564. | pubmed abstract |

Button, T.M., Rhee, S.H., Hewitt, J.K., Young, S.E., Corley, R.P., Stallings, M.C. (2007). The role of conduct disorder in explaining the comorbidity between alcohol and illicit drug dependence in adolescence. Drug and Alcohol Dependence, 87(1), 46-53. | pubmed abstract |

Ehringer, M.A., Cleg, H.V., Collins, A.C., Corley, R.P., Crowley, T., Hewitt, J.K., Hopfer, C.J., Krauter, K., Lessem, J., Rhee, S.H., Schlaepfer, I., Smolen, A., Stallings, M.C., Young, S.E., Zeiger, J.S. (2007). Association of the neuronal nicotinic receptor beta2 subunit gene (CHRNB2) with subjective responses to alcohol and nicotine. American Journal of Medical Genetics, B Neuropsychiatric Genetics, 144B(5), 596-604. | pubmed abstract |

Friedman, N.P., Haberstick, B.C., Willcutt, E.G., Miyake, A., Young, S.E., Corley, R.P., Hewitt, J.K. (2007). Greater attention problems during childhood predict poorer executive functioning in late adolescence. Psychological Science,18(10), 893-900. | pubmed abstract |

Haberstick, B.C., Timberlake, D., Ehringer, M.A., Lessem, J.M., Hopfer, C.J., Smolen, A., Hewitt, J.K. (2007). Genes, time to first cigarette and nicotine dependence in a general population sample of young adults. Addiction. 102(4), 655-665. | pubmed abstract |

Haberstick, B.C., Timberlake, D., Hopfer, C.J., Lessem, J.M., Ehringer, M.A., Hewitt, J.K. (2007). Genetic and environmental contributions to retrospectively reported DSM-IV childhood attention deficit hyperactivity disorder. Psychological Medicine 25,1-10. | pubmed abstract |

Haberstick, B.C., Timberlake, D., Smolen, A., Sakai, J.T., Hopfer, C.J., Corley, R.P., Young, S.E., Stallings, M.C., Huizinga, D., Menard, S., Hartman, C., Grotpeter, J., Hewitt, J.K. (2007). Between- and within-family association test of the dopamine receptor D2 TaqIA polymorphism and alcohol abuse and dependence in a general population sample of adults. Journal of Studies on Alcohol and Drugs, 68(3), 362-370. | pubmed abstract |

Hopfer, C.J., Lessem, J.M., Hartman, C.A., Stallings, M.C., Cherny, S.S., Corley, R.P., Hewitt, J.K., Krauter, K.S., Mikulich-Gilbertson, S.K., Rhee, S.H., Smolen, A., Young, S.E., Crowley, T.J. (2007). A genome-wide scan for loci influencing adolescent cannabis dependence symptoms: evidence for linkage on chromosomes 3 and 9. Drug and Alcohol Dependence, 89(1), 34-41. | pubmed abstract |

Rhee SH, Cosgrove VE, Schmitz S, Haberstick BC, Corley RC, Hewitt JK.(2007). Early childhood temperament and the covariation between internalizing and externalizing behavior in school-aged children. Twin Research and Human Genetics, 10(1), 33-44. | pubmed abstract |

Rhee, S.H., Neale, M.C., Corley, R.C., Hewitt, J.K. (2007). The inclusion of measured covariates in the Neale and Kendler model fitting approach. Behavior Genetics, 37(2), 423-32. | pubmed abstract |

Sakai, J.T., Hopfer, C.J., Hartman, C., Haberstick, B.C., Smolen, A., Corley, R.P., Stallings, M.C., Young, S.E., Timberlake, D., Hewitt, J.K., Crowley, T.J. (2007).Test of association between TaqIA A1 allele and alcohol use disorder phenotypes in a sample of adolescent patients with serious substance and behavioral problems. Drug and Alcohol Dependence, 88(2-3),130-7. | pubmed abstract |

Sakai, J.T., Lessem, J.M., Haberstick, B.C., Hopfer, C.J., Smolen, A., Ehringer, M.A., Timberlake, D., Hewitt, J.K. (2007). Case-control and within-family tests for association between 5HTTLPR and conduct problems in a longitudinal adolescent sample. Psychiatric Genetics, 17(4), 207-214. | pubmed abstract |

Schlaepfer, I.R., Clegg, H.V., Corley, R.P., Crowley, T.J., Hewitt, J.K., Hopfer, C.J., Krauter, K., Lessem, J., Rhee, S.H., Stallings, M.C., Wehner, J.M., Young, S.E., Ehringer, M.A. (2007). The human protein kinase C gamma gene (PRKCG) as a susceptibility locus for behavioral disinhibition. Addiction Biology 12(2), 200-209. | pubmed abstract |

Schlaepfer IR, Hoft NR, Collins AC, Corley RP, Hewitt JK, Hopfer CJ, Lessem JM, McQueen MB, Rhee SH, Ehringer MA. (2007) The CHRNA5/A3/B4 Gene Cluster Variability as an Important Determinant of Early Alcohol and Tobacco Initiation in Young Adults. Biol Psychiatry. 2007 Dec 26; [Epub ahead of print]

Timberlake, D.S., Haberstick, B.C., Hopfer, C.J., Bricker, J., Sakai, J.T., Lessem, J.M., Hewitt, J.K. (2007). Progression from marijuana use to daily smoking and nicotine dependence in a national sample of U.S. adolescents. Drug and Alcohol Dependence, 88(2-3), 272-281. | pubmed abstract |

Timberlake, D.S., Hopfer, C.J., Rhee, S.H., Friedman, N.P., Haberstick, B.C., Lessem, J.M., Hewitt, J.K. (2007). College attendance and its effect on drinking behaviors in a longitudinal study of adolescents. Alcoholism: Clinical and Experimental Research, 31(6), 1020-1030. | pubmed abstract |

2006

Bricker, J.B., Stallings, M.C., Corley, R.P., Wadsworth, S.J., Bryan, A., Timberlake, D.S., Hewitt, J.K., Caspi, A., Hofer, S.M., Rhea, S.A., DeFries, J.C. (2006). Genetic and environmental influences on age at sexual initiation in this Colorado adoption project. Behavior Genetics, May 19; [Epub ahead of print] | Pubmed Abstract |

Button, T.M.M, Corley, R.P., Rhee, S.H., Stallings, M.C.,Young, S.E.,Hewitt, J.K. (2006). Examination of the causes of covariation between conduct disorder and vulnerability to drug dependence. Twin Research and Human Genetics, 9(1), 38-45. | Pubmed Abstract |

Ehringer, M.A., Rhee, S.H., Young, S., Corley, R., & Hewitt, J.K. (2006). Genetic and environmental contributions to common psychopathologies of childhood and adolescence: a study of twins and their siblings. Journal of Abnormal Child Psychology, 34(1), 1-17. | Pubmed Abstract |

Friedman, N.P., Miyake, A., Corley, R.P., Young, S.E., DeFries, J.C., & Hewitt, J.K. (2006). Not all executive functions are related to intelligence.  Psychological Science, 17(2), 172-179. | Pubmed Abstract |

Gelhorn, H.L., Stallings, M.C., Young, S.E., Corley, R. P., Rhee, S. and Hewitt, J.K.(2006). Common and specific genetic influences on aggressive and non-aggressive conduct disorder domains. Journal of the American Academy of Child and Adolescent Psychiatry, 45(5), 570-577. | Pubmed Abstract |

Haberstick B.C, Schmitz S., Young S.E., Hewitt J.K. (2006). Genes and developmental stability of aggressive behavior problems at home and school in a community sample of twins aged 7-12. Behavior Genetics 36(6), 809-19.

Haberstick B.C., Smolen A., Hewitt J.K. (2006). Family-Based Association Test of the 5HTTLPR and Aggressive Behavior in a General Population Sample of Children. Biological Psychiatry, 59(9), 836-843. | Pubmed Abstract |

Hopfer, C.J., Young, S.E., Purcell, S., Crowley, T.J., Stallings, M.C., Corley, R.P., Rhee, S.H., Smolen, A., Krauter, K., Hewitt, J.K., Ehringer,M.A. (2006). Cannabis receptor haplotype associated with fewer cannabis dependence symptoms in adolescents. American Journal of Medical Genetics ­ Neuropsychiatric Genetics, epub ahead of print. | Pubmed Abstract |

Huizinga, D., Haberstick, B.C., Smolen, A., Menard, S., Young, S.E., Corley, R.P., Stallings, M.C., Grotpeter, J., & Hewitt, J.K. (2006). Childhood maltreatment, subsequent antisocial behavior, and the role of monoamine oxidase A genotype. Biological Psychiatry, 60, 677-683.

Lessem J.M., Hopfer C.J., Haberstick B.C., Timberlake D.S., Ehringer M.A., Smolen A., Hewitt J.K., (2006). Relationship between adolescent marijuana use and young adult ilicit drug use. Behavior Genetics, 36(4), 498-506. | Pubmed Abstract |

Rhee S.H., Hewitt J.K., Young S.E., Corley R.P., Crowley T.J., Neale M.C., Stallings M.C. (2006). Comorbidity between alcohol dependence and illicit drug dependence in adolescents with antisocial behavior and matched controls. Drug and Alchohol Dependence, 84(1), 85-92. | Pubmed Abstract |

Timberlake D.S., Haberstick B.C., Lessem J.M., Smolen A., Ehringer M.A., Hewitt J.K. (2006). An association between the DAT1 polymorphism and smoking behavior in young adults from the National Longitudinal Study of Adolescent Health. Health Psychology, 25(2), 190-197. | Pubmed Abstract |

Timberlake, D.S., Rhee, S.H., Haberstick, B.C., Hopfer, C., Ehringer, M., Lessem, J.M., Smolen, A., and Hewitt, J.K. (2006). The moderating effects of religiosity on the genetic and environmental determinants of smoking initiation. Nicotine and Tobacco Research, 8(1), 123-133. | Pubmed Abstract |

Young, S.E., Smolen, A., Hewitt, J.K., Haberstick, B., Stallings, M.C., Corley, R.P., and Thomas J. Crowley (2006). Interaction between MAO-A genotype and maltreatment in the risk for Conduct Disorder: Failure to confirm in adolescent patients. American Journal of Psychiatry, 163(6), 1019-1025. | Pubmed Abstract |

Young, S.E., Rhee, S.H., Stallings, M.C.,Corley, R.P., Hewitt, J.K. (2006). Genetic and environmental vulnerabilities underlying adolescent substance use and problem use: general or specific? Behavior Genetics, 36(4), 603-615. | Pubmed Abstract |

2005

Gelhorn, H.L., Stallings, M.C., Young, S.E., Corley, R.P., Rhee, S. and Hewitt, J.K. (2005). Genetic and environmental influences on conduct disorder: Symptom, domain and full-scale analyses. Journal of Child Psychology and Psychiatry, 46, 580-591. | Pubmed Abstract |

Haberstick, B.C., Lessem, J.M., Hopfer, C.J., Smolen, A., Ehringer, M.A., Timberlake, D. and Hewitt, J.K. (2005). Monoamine oxidase A (MAOA) and antisocial behaviors in the presence of childhood and adolescent maltreatment. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 135(1), 59-64. | Pubmed Abstract |

Haberstick, B.C., Young, S.E., Schmitz, S., and Hewitt, J.K. (2005). Contributions of genes and environments to stability and change in externalizing and internalizing problems during elementary and middle school. Behavior Genetics, 31, 381-396. | Pubmed Abstract |

Hopfer, C.J., Timberlake, D., Haberstick., B., Lessem, J.M., Ehringer, M.A., Smolen, A., & J.K. Hewitt, J.K. (2005). Genetic influences on quantity of alcohol consumed by adolescents and young adults. Drug and Alcohol Dependence, 78, 187-193. | Pubmed Abstract |

Rhee, S.H., Hewitt, J.K., Corley, R.P., Willcutt, E.G., and Pennington, B.F. (2005). Testing hypotheses regarding the causes of comorbidity: Examining the underlying deficits of comorbid disorders. Journal of Abnormal Psychology, 114, 346-62. | Pubmed Abstract |

Stallings, M.C., Corley, R.P., Dennehey, B., Hewitt, J.K., Krauter, K.S., Lessem, J.M., Mikulich-Gilbertson, S.K., Rhee, S.H., Smolen, A., Young. S.E., Crowley, T.J. (2005). A genome-wide search for quantitative trait loci that influence antisocial drug dependence in adolescence. Archives of General Psychiatry, 62, 1043-1051. | Pubmed Abstract |

2004

Heiman, N., Stallings, M.C., Young, S.E., Hewitt, J.K. (2004). Investigating the genetic and environmental structure of Cloninger’s personality. Twin Research, 7(5), 462-70.

Petrill, S.A., Lipton, P.A., Hewitt, J.K., Plomin, R., Cherny, S.S., Corley, R., DeFries, J.C. (2004). Genetic and environmental contributions to general cognitive ability through the first 16 years of life. Developmental Psychology, 40(5), 805-12.

Rhee, S.H., Hewitt, J.K., Lessem, J.M., Stallings, M.C., Corley, R.P., & Neale, M.C. (2004). The validity of the Neale and Kendler model-fitting approach in examining the etiology of comorbidity. Behavior Genetics, 34, 251-265.

Siewert, E.A., Stallings, M.C., & Hewitt, J.K. (2004). Factor structure and concurrent validity of the Drug Use Screening Inventory in a community adolescent sample. Addictive Behaviors, 29, 627-638.

Siewert, E.A., Stallings, M.C., & Hewitt, J.K. (2004). Genetic influences on vulnerability to and protective factors for adolescent drinking. Twin Research, 7(6), 617-25.

2003

Adams, J.B., Heath, A.J., Young, S.E., Corley, R.P., Hewitt, J.K., & Stallings, M.C. (2003). Relationships between personality and preferred substance and motivations for use among adolescent substance abusers. American Journal of Drug and Alcohol Abuse, 29, 691-712.

Bishop, E.G., Cherny, S.S., Corley, R., DeFries, J.C., & Hewitt, J.K. (2003). Developmental genetic analysis of general cognitive ability from 1 to 12 years in a sample of adoptees, biological siblings, and twins. Intelligence, 31, 31-49.

Heiman, N., Stallings, M.C., Hofer, S.M., & Hewitt, J.K. (2003). Investigating age differences in the genetic and environmental structure of the Tridimensional Personality Questionnaire in later adulthood. Behavior Genetics, 33( 2), 171-180.

Hopfer, C.J., Crowley, T.J., & Hewitt, J.K. (2003). Review of twin and adoption studies of adolescent substance use. Journal of the American Academy of Child and Adolescent Psychiatry, 42, 710-719.

Hopfer, C.J., Stallings, M.C., Hewitt, J.K., Crowley, T.J. (2003). Family transmission of marijuana use, abuse, and dependence. Journal of the American Academy of Child and Adolescent Psychiatry, 42, 834-841.

Rhee, S.H., Hewitt, J.K., Corley, R.P., & Stallings, M.C. (2003). The validity of testing the etiology of comorbidity between two disorders: A review of family studies. Journal of Child Psychology and Psychiatry, 44, 612-636.

Rhee, S.H., Hewitt, J.K., Corley, R.P., & Stallings, M.C. (2003). The validity of testing the etiology of comorbidity between two disorders: Comparisons of disorder prevalences in families. Behavior Genetics, 33, 257-269.

Rhee, S.H., Hewitt, J.K., Young, S.E., Corley, R.P., Crowley, T.J., Stallings, M.C. (2003). Genetic and environmental influences on substance initiation, use, and problem use in adolescents. Archives of General Psychiatry, 60, 1256-1264.

Siewert, E.A., Stallings, M.C., & Hewitt, J.K. (2003). Genetic and environmental analysis of behavioral risk factors for adolescent drug use in a community twin sample. Twin Research, 6, 490-496.

Stallings, M.C., Corley, R.P., Hewitt, J.K., Krauter, K.S., Lessem, J.M., Mikulich, S.K., Rhee, S.H., Smolen, A., Young, S.E., & Crowley, T.J. (2003). A genome-wide search for quantitative trait loci influencing substance dependence vulnerability in adolescence. Drug and Alcohol Dependence, 70, 295-307.

Wamboldt, M.Z., Laudenslager, M., Wamboldt, F.S., Kelsay, K., Hewitt, J.K. (2003). Adolescents with atopic disorders have attenuated cortisol response to laboratory stress. The Journal of Allergy and Clinical Immunology, 111, 509-514.

Young, S.E., Smolen, A., Stallings, M.C., Corley, R.P., & Hewitt, J.K. (2003). Sibling-based association analyses of the serotonin transporter polymorphism and internalizing behavior problems in children. Journal of Child Psychology and Psychiatry, 44, 961-967.

2002

Wadsworth, S.J., Corley, R.P., Hewitt, J.K., Plomin, R., & DeFries, J.C. (2002). Parent-offspring resemblance for reading performance at 7, 12 and 16 years of age in the Colorado Adoption Project. Journal of Child Psychology and Psychiatry 43, 769-774.

Young, S.E., Corley, R.P., Stallings, M.C., Rhee, S.H., Crowley, T.J., & Hewitt, J.K. (2002). Substance use, abuse and dependence in adolescence: Prevalence, symptom profiles, and correlates. Drug and Alcohol Dependence, 68, 309-322.

Young, S.E., Smolen, A., Corley, R.P., Krauter, K.S., DeFries, J.C., Crowley, T.J., & Hewitt, J.K. (2002). Dopamine transporter polymorphism associated with externalizing behavior problems in children. American Journal of Medical Genetics (Neuropsychiatric Genetics), 114, 144-149.

2001

Foley, D.L., Pickles, A., Simonoff, E., Maes, H.H., Silberg, J.L., Hewitt, J.K., & Eaves, L.J. (2001). Parental concordance and comorbidity for psychiatric disorder and associated risks for current psychiatric symptoms and disorders in a community sample of juvenile twins. Journal of Child Psychology and Psychiatry, 42, 381-394.

Hopfer, C.J., Stallings, M.C., Hewitt, J.K., (2001). Common genetic and environmental vulnerability for alcohol and tobacco use in a volunteer sample of older female twins. Journal of Studies on Alcohol, 62, 717-723.

O’Connor, T.G., Jenkins, J.M., Hewitt, J.K., DeFries, J.C., & Plomin, R. (2001). Longitudinal connections between parenting and peer relationships in adoptive and biological families. Marriage and Family Review, 33, 251-271.

Purcell, S., Cherny, S.S., Hewitt, J.K., & Sham, P.C. (2001). Optimal sibship selection for genotyping in QTL linkage analysis. Human Heredity, 52, 1-13.

Rijsdijk, F.V., Hewitt, J.K., Sham, P.C. (2001). Analytic power calculation for QTL analysis of general pedigrees. European Journal of Human Genetics, 9, 335-340.

Wadsworth, S.J., Corley, R.P., Hewitt, J.K., & DeFries, J.C. (2001). Stability of genetic and environmental influences on reading performance at 7, 12 and 16 years of age in the Colorado Adoption Project. Behavior Genetics, 31, 353-359.

2000

Meyer, J.M., Rutter, M., Silberg, J.L., Maes, H.H., Simonoff, E., Shillady, L.L., Pickles, A., Hewitt, J.K., & Eaves, L.J. (2000). Familial aggregation for conduct disorder symptomatology: The role of genes, marital discord, and family adaptability. Psychological Medicine, 30, 759-774.

Sham, P.C., Cherny, S.S., Purcell, S., & Hewitt, J.K. (2000). Power of linkage versus association analysis of quantitative traits, by use of variance-components models, for sibship data. American Journal of Human Genetics, 66, 1616-1630.

Sham, P.C., Zhao, J.H., Cherny, S.S., & Hewitt, J.K. (2000). Variance-components QTL linkage analysis of selected and non-normal sample conditioning on trait values. Genetic Epidemiology, 19(S1), S22-S28.

Van Hulle, C., Corley, R., Zahn-Waxler, C., Kagan, J., and Hewitt, J.K. (2000). An exploration of the genetic and environmental etiology of heart rate in infancy and middle childhood. Twin Research, 3, 259-265.

VanHulle, C., Corley, R., Zahn-Waxler, C., Kagan, J., & Hewitt, J.K. (2000). Early childhood heart rate does not predict externalizing behavior problems at age seven years. Journal of the American Academy of Child and Adolescent Psychiatry, 39, 1238-1244.

Wamboldt, M.Z., Bihun, J.T., Szefler, S., & Hewitt, J.K. (2000). Perception of induced bronchoconstriction in a community sample of adolescents. Journal of Allergy and Clinical Immunology, 106, 1102-1107.

Wamboldt, M.Z., Hewitt, J.K., Schmitz, S., Wamboldt, F.S., Räsänen, M., Koskenvuo, M., Romanov, K., Varjonen, J., & Kaprio, J. (2000).Familial association between allergic disorders and depression in adult Finnish twins. American Journal of Medical Genetics (Neuropsychiatric Genetics) 96, 146-153.

Young, S.E., Stallings, M.C., Corley, R.P., Krauter, K.S., Hewitt, J.K. (2000). Genetic and environmental influences on behavioral disinhibition. American Journal of Medical Genetics (Neuropsychiatric Genetics), 96, 684-695.

1999

Fulker, D.W., Cherny, S.S., Sham, P.C., & Hewitt, J.K. (1999). Combined linkage and association sib-pair analysis for quantitative traits. American Journal for Human Genetics, 64, 259-267.

Gynther, L., Hewitt, J.K., Heath, A.C., & Eaves, L.J. (1999). Phenotypic and genetic factors in motives for smoking. Behavior Genetics, 29, 291-302.

Maes, H.H., Woodard, C.E., Murelle, L., Meyer, J.M., Silberg, J.L., Hewitt, J.K., Rutter, M., Simonoff, E., Pickles, A., Carbonneau, R., Neale, M.C., & Eaves, L.J. (1999). Tobacco, alcohol, and drug use in 8-16 year old twins: The Virginia Twin Study of Adolescent Behavioral Development. Journal of Studies on Alcohol, 60, 293-305.

Silberg, J., Pickles, A., Rutter, M., Hewitt, J., Simonoff, J., Maes, H., Carbonneau, R., Murrelle, L., Foley, D., & Eaves, L.J. (1999). The influence of genetic factors and life stress on depression among adolescent girls. Archives of General Psychiatry, 56, 225-232.

Stallings, M.C., Hewitt, J.K., Beresford, T., Heath, A.C., Eaves, L.J. (1999). A twin study of drinking and smoking onset and latencies from first use to regular use. Behavior Genetics, 29, 409-421.

Topolski, T.D., Hewitt, J.K., Eaves, L.J., Meyer, J.M., Silberg, J.L., Simonoff, E.S., & Rutter, M. (1999). Genetic and environmental influences on ratings of manifest anxiety by parents and children. Journal of Anxiety Disorders, 13(4), 371-397.

1998

Eaves, L.J., Heath, A.C., Neale, M.C., Hewitt, J.K., Martin, N.G. (1998). Sex differences and non-additivity in the effects of genes on personality. Twin Research, 1, 131-137.

Maes, H.H., Neale, M.C., Kendler, K.S., Hewitt, J.K., Silberg, J.L., Foley, D.L., Meyer, J.M., Rutter, M.L., Simonoff, E., Pickles, A., & Eaves, L.J. (1998). Assortative mating for major psychiatric diagnoses in two population-based samples. Psychological Medicine, 28: 1389-1401.

Miles, D.R., Stallings, M.C., Young, S.E., Hewitt, J.K., Crowley, T.J., & Fulker, D.W. (1998). A family history and direct interview study of the familial aggregation of substance abuse: The adolescent substance abuse study. Drug and Alcohol Dependence, 49, 105-114.

Nance, W.E., Bodurtha, J., Eaves, L.J., Hewitt, J., Maes, H., Segrest, J., Meyer, J., Neale, M., & Schieken, R. (1998). Models for the longitudinal genetic analysis of same aged twins: Application to HDL cholesterol. Journal of Twin Research, 1, 3-8.

Petrill, S.A., Saudino, K.J., Cherny, S.S., Emde, R.N., Fulker, D.W., Hewitt, J.K., Plomin, R. (1998). Exploring the genetic etiology of high general cognitive ability in 14 to 36 month-old twins. Child Development, 69, 68-74.

1997

Eaves, L.J., Silberg, J.L., Meyer, J.M., Maes, H.H., Simonoff, E., Pickles, A., Rutter, M., Neale, M.C., Reynolds, C.A., Erikson, M.T., Heath, A.C., Loeber, R., Truett, K.R., & Hewitt, J.K. (1997). Genetics and developmental psychopathology: 2. The main effects of genes and environment on behavioral problems in the Virginia Twin Study of Adolescent Behavioral Development. Journal of Child Psychology and Psychiatry, 38(8), 965-980.

Hahn, M.E., Hewitt, J.K., Schanz, N., Weinreb, L., & Henry, A. (1997). Genetic and developmental influences on infant mouse ultrasonic calling: I. A diallel analysis of the calls of 3-day olds. Behavior Genetics, 27, 133-144.

Hewitt, J.K. (1997). Behavior genetics and eating disorders. Psychopharmacology Bulletin, 33, 355-358.

Hewitt, J.K. (1997). The genetics of obesity: What have genetic studies told us about the environment? Behavior Genetics, 27, 353-358.

Hewitt, J.K., Silberg, J.L., Rutter, M., Simonoff, E., Meyer, J.M., Maes, H.H., Pickles, A., Neale, M.C., Loeber, R., Erickson, M.T., Kendler, K.S., Heath, A.C., Truett, K.R., Reynolds, C.A., & Eaves, L.J. (1997). Genetics and developmental psychopathology: 1. Phenotypic assessment in the Virginia Twin Study of Adolescent Behavioral Development. Journal of Child Psychology and Psychiatry, 38(8), 943-963.

Petrill, S.A., Saudino, K.J., Cherny, S.S., Emde, R.N., Hewitt, J.K., Fulker, D.W., Plomin, R. (1997). Exploring the genetic etiology of low general cognitive ability from 14 to 36 months. Developmental Psychology, 33, 544-548.

Simonoff, E., Pickles, A., Meyer, J.M., Silberg, J.L., Maes, H.H., Loeber, R., Rutter, M., Hewitt, J.K., & Eaves, L.J. (1997). Epidemiology in the Virginia Twin Study of Adolescent Behavioral Development: Influences of age, gender and impairment on rates of disorder. Archives of General Psychiatry, 54(9):801-808.

Stallings, M.C., Cherny, S.S., Young, S.E., Miles, D.R., Hewitt, J.K., & Fulker, D.W. (1997). The familial aggregation of depressive symptoms, antisocial behavior, and alcohol abuse. American Journal of Medical Genetics, (Neuropsychiatric Genetics), 74, 183-191.

Topolski, T.D., Hewitt, J.K., Eaves, L.J., Silberg, J.L., Meyer, J.M., Rutter, M., Pickles, A., & Simonoff, E. (1997). Genetic and environmental influences on child reports of Manifest Anxiety and symptoms of Separation Anxiety and Overanxious disorders: A community-based twin study. Behavior Genetics, 27, 15-28.

1996

Meyer, J.M., Silberg, J.L., Simonoff, E.S., Kendler, K.S., & Hewitt, J.K. (1996). The Virginia Twin Study of Adolescent Behavioral Development: Assessing sample biases in demographic correlates of psychopathology. Psychological Medicine, 26, 1119-1134.

Reynolds, C.A., Hewitt, J.K., Erickson, M., Silberg, J.L., Rutter, M., Simonoff, E., Meyer, J., & Eaves, L.J. (1996). The genetics of children's oral reading performance. Journal of Child Psychology and Psychiatry, 37, 425-434.

Silberg, J., Meyer, J., Rutter, M., Simonoff, E., Hewitt, J.K., Loeber, R., Pickles, A., Maes, H., & Eaves, L.J. (1996). Genetic and environmental influences on the covariation between hyperactivity and conduct disturbance in juvenile twins. Journal of Child Psychology and Psychiatry, 37, 803-816.

Stallings, M.C., Hewitt, J.K., Cloninger, C.R., Heath, A.C., & Eaves, L.J. (1996). Genetic and environmental structure of the Tridimensional Personality Questionnaire: Three or four primary temperament dimensions? Journal of Personality and Social Psychology, 70, 127-140.

1995

Simonoff, E., Pickles, A., Hewitt, J.K., Silberg, J., Rutter, M., Loeber, R., Meyer, J., Neale, M., & Eaves, L.J. (1995). Multiple raters of disruptive child behavior: Using a genetic strategy to examine shared views and bias. Behavior Genetics, 25, 311-326.

1994

Neale, M.C., Eaves, L.J., Hewitt, J.K., & Kendler, K.S. (1994). Multiple regression with data collected from relatives. Multivariate Behavioral Research, 29, 33-61.

Pickles, A., Crouchley, R., Simonoff, E., Eaves, L., Meyer, J., Rutter, M., Hewitt, J., & Silberg, J. (1994). Survival models for developmental genetic data: age of onset of puberty and antisocial behavior in twins. Genetic Epidemiology, 11, 155-170.

Pickles, A., Neale, M., Simonoff, E., Rutter, M., Hewitt, J.K., Meyer, J.M., Crouchley, R., Silberg, J.L., & Eaves, L.J. (1994). A simple method for censored age-of-onset data subject to recall bias: Mothers' reports of age of puberty in male twins. Behavior Genetics, 24, 457-468.

Prescott, C.A., Hewitt, J.K., Heath, A.C., Truett, K.R., Neale, M.C., & Eaves, L.J. (1994). Environmental and genetic influences on alcohol use in a volunteer sample of older twins. Journal of Studies on Alcohol, 55, 18-33.

Prescott, C.A., Hewitt, J.K., Truett, K., Heath, A.C., Neale, M.C., & Eaves, L.J. (1994). Genetic and environmental influences on lifetime alcohol-related problems in a volunteer sample of older twins. Journal of Studies on Alcohol, 55, 184-202.

Silberg, J.L., Erickson, M.T., Eaves, L.J., Rutter, M., & Hewitt, J.K. (1994). The application of structural modeling to maternal ratings of twins' behavioral and emotion problems. Journal Consulting and Clinical Psychology, 62, 510-521.

Truett, K.R., Eaves, L.J., Walters, E.E., Heath, A.C., Hewitt, J.K., Meyer, J.M., Silberg, J.L., Neale, M.C., Martin, N.G., & Kendler, K.S. (1994). A model system for analysis of the complexity of family resemblance in extended kinships of twins. Behavior Genetics 24, 35-50.

1993

Eaves, L.J., Silberg, J.L., Hewitt, J.K., Rutter, M., Meyer, J.M., Neale, M.C., & Pickles, A. (1993). Analyzing twin resemblance in multi-symptom data: Genetic applications of a latent class model for symptoms of conduct disorders in juvenile boys. Behavior Genetics, 23, 5-20.

Heath, A.C., Gates, R., Martin, N.G., Meyer, J.M., Hewitt, J.K., Neale, M.C., & Eaves, L.J. (1993). Genetic contribution to risk of smoking initiation: comparisons across birth cohorts and across cultures. Journal of Substance Abuse, 5, 221-246.

Heath, A.C., Kessler, R.C., Neale, M.C., Hewitt, J.K., Eaves, L.J., & Kendler, K.S. (1993). Testing hypotheses about direction of causation using cross-sectional family data. Behavior Genetics, 23, 29-50.

Moskowitz, W.B., Mosteller, M., Hewitt, J.K., Eaves, L.J., Nance, W.E., & Schieken, R.M. (1993). Univariate genetic analysis of oxygen transport regulation in children: The Medical College of Virginia Twin Study. Pediatric Research, 33:6, 645-8.

1992

Fabsitz, R., Carmelli, D., & Hewitt, J.K. (1992). Evidence of independent genetic effects on obesity in middle age. International Journal of Obesity, 16, 656-666.

Gau, J.S., J.L., Erickson, M.T., & Hewitt, J.K. (1992). Childhood behavior problems: A comparison of twin and non-twin samples. Acta Geneticae Medicae et Gemellologiae, 41, 53-63.

Hewitt, J.K. (1992). Localization of primary sites of genetic influence requires more information than two selected lines alone can yield (Critique of Sinclair's paper). Behavior Genetics, 22, 19-21.

Hewitt, J.K., Silberg, J.L., Neale, M.C., Eaves, L.J., & Erickson, M. (1992). The analysis of parental ratings of children's behavior using LISREL. Behavior Genetics, 22:3, 293-317.

Kendler, K.S., & Hewitt, J.K. (1992). The structure of self-report schizotypy in twins: I. An analysis of 10 self-report scales and neuroticism, extraversion and symptoms of anxiety and depression. Journal of Personality Disorders, 6:1, 1-17.

Schieken, R.M., Mosteller, M., Goble, M.M., Moskowitz, W.B., Hewitt, J.K., Eaves, L.J., & Nance, W.E. (1992). Multivariate genetic analysis of blood pressure and body size: The MCV Twin Study. Circulation, 86:6, 1780-1788.

Turner, J.R., & Hewitt, J.K. (1992). Twin studies of cardiovascular response to psychological challenge: A review and suggested future directions. Annals of Behavioral Medicine 14:1, 12-20.

1991

Cooper, P., Benno, R., Hahn, M., & Hewitt, J.K. (1991). Genetic analysis of cerebellar foliation patterns in mice (Mus Musculus). Behavior Genetics, 21:4, 405-420.

Hewitt, J.K., Stunkard, A.J., Carroll, D., Sims, J., & Turner, J.R. (1991). A twin study approach towards understanding genetic contributions to body size and metabolic rate. Acta Geneticae Medicae et Gemellologiae, 40, 133-146.

Kendler, K.S., Ochs, A.L., Gorman, A.M., Hewitt, J.K., Ross, D.E., & Mirsky, A. (1991). The Structure of Schizotypy: A pilot multitrait twin study. Psychiatry Research, 36, 19-36.

Silberg, J.L., Meyer, J.M., Eaves, L.J., Neale, M.C., Hewitt, J.K., Heath, A.C., & Kendler, K.S. (1991). The effect of bias on the estimates of the genetic and environmental influences on ratings of depressive symptoms. International Journal of Methods in Psychiatric Research, 1, 59-67.

Sims, J., Boomsma, D.I., Carrol, D., Hewitt, J.K., & Turner, J.R. (1991). Genetics of Type A behavior in two European countries: evidence for sibling interaction. Behavior Genetics, 21:5, 513-528.

Verhaaren, H.A., Schieken, R.M., Mosteller, M., Hewitt, J.K., Eaves, L.J., & Nance, W.E. (1991). Bivariate genetic analysis of left ventricular mass and weight in pubertal twins. American Journal of Cardiology, 68, 661-668.

1990

Bodurtha, J.N., Mosteller, M., Hewitt, J.K., Nance, W.E., Eaves, L.J., Moskowitz, W.B., Katz, S., & Schieken, R.M. (1990). Genetic analysis of Anthropometric Measures 11-year-old twins: the Medical College of Virginia Twin Study. Pediatric Research, 28:1, 1-4.

Eaves, L.J., Martin, N.G., Heath, A.C., Hewitt, J.K., & Neale, M.C. (1990). Personality and reproductive fitness. Behavior Genetics, 20:5, 563-568.

Moskowitz, W., Mosteller, M., Schieken, R., Bossano, R., Hewitt, J.K., Bodurtha, J.A., & Segrest, J.P., (1990). Lipoprotein and Oxygen Transport Alterations in Passive Smoking Preadolescent Children. The MCV twin study. Circulation, 81, 586-592.

1989

Heath, A.C., Neale, M.C., Hewitt, J.K., Eaves, L.J. & Fulker, D.W. (1989). Testing structural equation models for twin data using LISREL. Behavior Genetics, 19:1, 9-35.

Hewitt, J.K. (1989). Of biases and more in the study of twins reared together: A Reply to Grayson. Behavior Genetics, 19:4, 605-608.

Hewitt, J.K., & Claridge, G. (1989). The factor structure of schizotypy in a normal population. Personality and Individual Differences, 10:3,323-329.

Neale, M.C., Eaves, L.J., Hewitt, J.K., Meyer, J.M., MacLean, C., & Kendler, K.S. (1989). Analyzing the relationship between age of onset and risk to relatives. American Journal of Human Genetics, 45, 226-239.

Neale, M.C., Eaves, L.J., Kendler, K.S., & Hewitt, J.K. (1989). Bias in correlations from selected samples of relatives: soft selection. Behavior Genetics, 19, 163-169.

Neale, M.C., Heath, A.C., Hewitt, J.K., & Eaves, L.J. (1989). Fitting genetic models with LISREL: hypothesis testing. Behavior Genetics, 19:1, 37-49.

Schieken, R.M., Eaves, L.J., Hewitt, J.K., Mosteller, M., Bodurtha, J., Moskowitz, W.B., & Nance, W. (1989). Univariate genetic analysis of blood pressure in children: The MCV twin study. American Journal of Cardiology, 64, 1333-1337.

1988

Hewitt, J.K., Eaves, L.J., Neale, M., & Meyer, J. (1988). Resolving causes of developmental continuity or "tracking": I. Longitudinal twin studies during growth. Behavior Genetics, 18:2, 133-151.

Hewitt, J.K., & Heath, A.C. (1988). A note on computing the chi_square noncentrality parameter for power analyses. Behavior Genetics, 18:1, 105-108.

Sims, J., Carroll, D., Turner, J.R., & Hewitt, J.K. (1988). Cardiac and metabolic activity in mild hypertensive and normotensive subjects. Psychophysiology, 25:2, 172-178.

1987

Claridge, G., & Hewitt, J.K. (1987). A biometrical study of schizotypy in a normal population. Personality and Individual Differences, 8:3, 303_312.

Hahn, M.E., Hewitt, J.K., Adams, M., & Tully, T. (1987). Genetic influences on ultrasonic vocalizations in young mice. Behavior Genetics, 17:2, 155_166.

Hewitt, J.K. (1987). Heritability. Science Progress, Oxford, 71, 37_49.

Hewitt, J.K., Carroll, D., Sims, J., & Eaves, L.J. (1987). A developmental hypothesis for adult blood pressure. Acta Geneticae Medicae et Gemellologiae, 36, 475_483.

Hewitt, J.K., Hahn, M.E., & Karkowski, L. (1987). Genetic selection disrupts stability of mouse brain weight development. Developmental Brain Research, 417:2, 225_231.

Sims, J., Carroll, D., Hewitt, J.K., & Turner, J.R. (1987). A family study of developmental effects upon blood pressure variation. Acta Geneticae Medicae et Gemellologiae, 36, 467_473.

Turner, J.R., Sims, J., Carroll, D., Morgan, R.K., & Hewitt, J.K. (1987). A comparative evaluation of heart rate reactivity during MATH and a standard mental arithmetic task. International Journal of Psychophysiology, 5(4), 301.

1986

Hallett, S., Quinn, D., & Hewitt, J.K. (1986). Defective interhemispheric integration and anomalous language lateralization in children at risk for schizophrenia. Journal of Nervous and Mental Diseases, 174, 418_427.

Sims, J., Hewitt, J.K., Kelly, K.A., Carroll, D., & Turner, J.R. (1986). Familial and individual influences on blood pressure. Acta Geneticae Medicae et Gemollologiae, 35, 7-21.

Turner, J.R., Carroll, D., Sims, J., Hewitt, J.K., & Kelly, K.A. (1986). Temporal and inter-task consistency of heart rate reactivity during active psychological challenge: a twin study. Physiology and Behavior, 38, 641-644.

Turner, J.R., Hewitt, J.K., Morgan, R.K., Sims, J., Carroll, D., & Kelly, K.A. (1986). Graded mental arithmetic as an active psychological challenge. International Journal of Psychophysiology, 3, 307-309.

1985

Carroll, D., Hewitt, J.K., Last, K.A., Turner, J.R., & Sims, J. (1985). A twin study of cardiac reactivity and its relationship to parental blood pressure. Physiology and Behavior, 34 (1), 103_106.

Collins, M.F., & Hewitt, J.K. (1985). Courtship between and within inbred lines of Drosophila melanogaster. Animal Behavior, 33, (2), 682_683.

Collins, M.F., Hewitt, J.K., & Gogarty, J.F., (1985). Validating time-sampled observations of courtship in Drosophila melanogaster for behavior genetic analysis. Behavior Genetics, 15, 25-35.

Shephard, R.A., Hewitt, J.K., & Broadhurst, P.L. (1985). The inheritance of neophagia and behavioral diazepam sensitivity amongst the Roman strains of rat. Behavior Genetics, 15, 265-286.

1984

Collins, M.F., & Hewitt, J.K. (1984). The genetic architecture of the male courtship sequence in Drosophila melanogaster. Heredity, 53, 321_337.

Hewitt, J.K. (1984). Normal components of personality variation. Journal of Personality and Social Psychology, 47, 671_675.

Hewitt, J.K., & Fulker, D.W. (1984). Genotypic differentiation of Roman selection lines did not disappear with inbreeding. Behavior Genetics, 14, 389_395.

Hewitt, J.K., & Fulker, D.W. (1984). Using the triple test cross to investigate the genetics of behavior in wild populations. III. Activity and reactivity. Behavior Genetics, 14, 125_135.

1983

Hewitt, J.K., & Fulker, D.W. (1983). Using the triple test cross to investigate the genetics of behavior in wild populations. II. Escape-avoidance conditioning in Rattus norvegicus. Behavior Genetics, 13, 1-15.

Hewitt, J.K., Fulker, D.W. & Hewitt. C.A. (1983). Genetic architecture of olfactory discriminative avoidance conditioning in Drosophila melanogaster. Journal of Comparative Psychology, 97, 52-58.

1981

Hewitt, J.K., & Fulker, D.W. (1981). Using the triple test cross to investigate the genetics of behavior in wild populations. I. Methodological considerations. Behavior Genetics, 11, 23-35.

Hewitt, J.K., Fulker, D.W., & Broadhurst, P.L. (1981). Genetics of escape-avoidance conditioning in laboratory and wild populations of rats: a biometrical approach. Behavior Genetics, 11, 533-544.

1980

Hewitt, J.K. (1980). A note on the test for the direction of dominance in the triple test cross in the presence of genotype x environment interaction. Heredity, 45, 293-295.

1978

Hewitt. J.K., Fulker, D.W., & Eysenck, H.J. (1978). Effect of strain and level of shock on the behavior of rats in PSI experiments. Psychological Reports, 42, 1103_1108.

1977

Hewitt, J.K., Eysenck, H.J., & Eaves, L.J. (1977). Structure of social attitudes after twenty-five years: a replication. Psychological Reports, 40, 183_188.

Hewitt, J.K., Fulker, D.W., & DeFries, J.C. (1977). Open field behavior in mice: generality of results from a diallel analysis of replicate selected lines. Behavior Genetics, 7, 441_446.

Books and/or chapters

2006

Wadsworth, S.J., Corley, R.P., Plomin, R., , Hewitt, J.K., and DeFries, J.C. (2006). Genetic and environment influences on continuity and change in reading achievement in the Colorado Adoption Project. In A.C. Huston & M.N. Ripke (Eds.), Developmental contexts in middle childhood (pp. 87 - 106). NY, NY: Cambridge University Press.

2005

Rhee, S.H., Hewitt, J.K., Corley, R.P., & Stallings, M. (2005). Comorbidity. In B.S. Everitt & D.C. Howell (Eds.), Encyclopedia of statistics in behavioral science. Chichester: John Wiley & Sons, Ltd.

Hewitt, J.K. (2005) Social interaction models. In B.S. Everitt & D.C. Howell (Eds.), Encyclopedia of Statistics in Behavioral Science (pp. 1864-1865). Chichester: John Wiley & Sons, Ltd.

2003

Bishop, E.G., Cherny, S.S., & Hewitt, J.K. (2003). Developmental analysis of IQ. In S.A. Petrill, R. Plomin, J.C. DeFries, & J.K. Hewitt (Eds.), Nature, nurture, and the transition to early adolescence (pp. 13-27). New York: Oxford University Press.

Petrill, S.A., Plomin, R., DeFries, J.C., & Hewitt, J.K. (2003). Conclusions. In S.A. Petrill, R. Plomin, J.C. DeFries, & J.K. Hewitt (Eds.), Nature, nurture, and the transition to early adolescence (pp. 310-316). New York: Oxford University Press.

Petrill, S.A., Plomin, R., DeFries, J.C., & Hewitt, J.K. (2003). Nature, nurture, and adolescent development. In S.A. Petrill, R. Plomin, J.C. DeFries, & J.K. Hewitt (Eds.), Nature, nurture, and the transition to early adolescence (pp. 3-12). New York: Oxford University Press.

Petrill, S.A., Plomin, R., DeFries, J.C., & Hewitt, J.K. (Eds.). (2003). Nature, nurture, and the transition to early adolescence. New York: Oxford University Press.

2001

Chambers, M.L., Hewitt, J.K., Schmitz, S., Corley, R.P., & Fulker, D.W. (2001). Height, weight, and body mass index. In R.N. Emde & J.K. Hewitt (Eds.), Infancy to early childhood: Genetic and environmental influences on developmental change (pp. 292-306). New York: Oxford University Press.

Emde, R.N., & Hewitt, J.K. (Eds.). (2001). Infancy to early childhood: Genetic and environmental influences on developmental change. New York: Oxford University Press.

Hewitt, J.K., Emde, R.N., & Plomin, R. (2001). The twin method: What we can learn from a longitudinal study. In R.N. Emde & J.K. Hewitt (Eds.), Infancy to early childhood: Genetic and environmental influences on developmental change (pp. 12-22). New York: Oxford University Press.

O’Connor, T.G., Jenkins, J.M., Hewitt, J., DeFries, J.C., Plomin, R. (2001). Longitudinal connections between parenting and peer relationships in adoptive and biological families. In K. Deater-Deckard, & S.A. Petrill (Eds.), Marriage and family review: Vol. 33, No. 2/3 (pp. 251-271). The Hawthorn Press, Inc.

Plomin, R., Emde, R.N., Hewitt, J.K., Kagan, J. & DeFries, J.C. (2001). An experiment in collaborative science. In R.N. Emde & J.K. Hewitt (Eds.), Infancy to early childhood: Genetic and environmental influences on developmental change (pp. 355-381). New York: Oxford University Press

1999

Meyer, J.M., Silberg, J.L., Eaves, L.J., Maes, H.H., Simonoff, E., Pickles, A., Rutter, M.L., & Hewitt, J.K. (1999). Variable age of gene expression: Implications for developmental genetic models. In M.C. LaBuda and E.L. Grigorenko (Eds.), On the way to individuality: Methodological issues in behavioral genetics. Commack, NY: Nova Science Publishers, 23-52.

1997

Cherny, S.S., Fulker, D.W., & Hewitt, J.K. (1997). Cognitive development from infancy to middle childhood. In R.J. Sternberg and E.L. Grigorenko (Eds.), Intelligence: Heredity and environment. N.Y.: Cambridge University Press, 463-482.

1995

Hewitt, J.K., & Turner, J.R. (1995). Behavior genetic approaches in behavioral medicine: An introduction. In J.R. Turner, L. Cardon, & J.K. Hewitt (Eds.), 3-13.

Hewitt, J.K. & Turner, J.R. (1995). Behavior genetic studies of cardiovascular responses to stress. In Turner et al. (Eds.), 87-104.

Hewitt, J.K., & Turner, J.R. (1995). Implications of a behavior genetic perspective in behavioral medicine. In Turner et al. (Eds.), 253-255.

Reynolds, C., & Hewitt, J.K. (1995). Issues in the behavior genetic investigation of gender differences. In Turner et al. (Eds.), 189-200.

Silberg, J., Meyer, J., Pickles, A., Simonoff, E., Eaves, L., Hewitt, J., Maes, H., Rutter, M. (1995). Heterogeneity among juvenile antisocial behaviors: Findings from the Virginia Twin Study of Adolescent Behavioral Development. In G.R. Bock & J.A. Goode (Eds.), Genetics of criminal and antisocial behavior. Ciba Foundation, Vol 194. New York: Wiley, 76-92.

Turner, J.R., Cardon, L., & Hewitt, J.K. (Eds.). (1995). Behavior genetic approaches in behavioral medicine. Plenum Press, New York.

1993

Eaves, L., Silberg, J., Hewitt, J.K., Meyer, J., Rutter, M., Simonoff, E., Neale, M., & Pickles, A. (1993). Genes, personality, and psychopathology: A latent class analysis of liability to symptoms of attention-deficit hyperactivity disorder in twins. In R. Plomin and G. E. McClearn (Eds.), Nature, nurture and psychology, 285-303.

Hewitt, J.K. (1993). The new quantitative genetic epidemiology of behavior. In R. Plomin & G.E. McClearn (Eds.), Nature, nurture and psychology. American Psychological Association, 399-413.

1992

Hewitt, J.K., contributions to: Neale, M.C., Cardon, L.L. and 11 contributing authors (1992). Methodology for genetic studies of twins and families. Kluwer Academic. Hewitt, J.K., contributions to: Neale, M.C., Cardon, L.L. and 11 contributing authors (1992). Methodology for genetic studies of twins and families. Kluwer Academic.

Hewitt, J.K. (1992). Social Interaction. Contributions to: Neale, M.C., Cardon, L.L. and 11 contributing authors (1992). Methodology for genetic studies of twins and families. Kluwer Academic, 199-210.

Hewitt, J.K. (1992). Observer Ratings. Contributions to: Neale, M.C., Cardon, L.L. and 11 contributing authors (1992). Methodology for genetic studies of twins and families. Kluwer Academic, 313-327.

1990

Eaves, L.J., Hewitt, J.K., Meyer, J., & Neale, M.C. (1990). Approaches to the quantitative genetic modeling of development and age-related changes. In M. Hahn, J.K. Hewitt, N.D. Henderson and R. Benno, Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press, 266-280.

Hahn, M., J.K. Hewitt, N.D. Henderson, & R. Benno (Eds.). (1990). Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press.

Hewitt, J.K. (1990). Biometrical approaches to evolution and behavioral development. In M. Hahn, J.K. Hewitt, N.D. Henderson and R. Benno, Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press, 161-165.

Hewitt, J.K. (1990). Changes in genetic control during learning, development and aging. In M. Hahn, J.K. Hewitt, N.D. Henderson, & R. Benno, Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press, 217-235.

Hewitt, J.K. (1990). Genetics as a framework for the study of behavioral development. In M. Hahn, J.K. Hewitt, N.D. Henderson & R. Benno, Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press, 298-303.

Hewitt, J.K. (1990). Integrations, themes and future directions. In M. Hahn, J.K. Hewitt, N.D. Henderson & R. Benno, Developmental behavior genetics: Neural, Biometrical and Evolutionary Approaches. Oxford University Press, 281-282.

1988

Carroll, D., Turner, J.R., Hewitt, J.K., Kelly, K.A., & Sims, J. (1988). Cardiac reactions to psychological challenge: implications for essential hypertension. In Taylor, E.W. (Ed.). Neurobiology of the cardiorespiratory system. Manchester University Press, 261_273.

Eaves, L.J., Hewitt, J.K., & Heath, A.C. (1988). The quantitative genetic study of human developmental change: a model and its limitations. In Eisen, E.J., Goodman, M.M., Nomkoony, G. and Weir, B.S. (Eds.) The 2nd International Conference on Quantitative Genetics. Sunderland, MA: Sinauer Associates.

1984

Hewitt, J.K., & Last, K. (1984). Twin studies of intelligence: Recent data, new questions. In C. Turner and M.B. Miles (Eds.), The biology of human intelligence. Nafferton: Nafferton Press, 1984.

1983

Hewitt, J.K., & Broadhurst, P.L. (1983). Genetic architecture and the evolution of aggressive behavior. In E.C. Simmel, M.E. Hahn & J.K. Walters (Eds.), Aggressive behavior: Genetic and neural aspects. London: Lawrence Erlbaum.

 

Other - reviews, editorials, etc.

Berrettini, W., Bierut, L., Crowley, T.J., Cubells, J.F., Frascella, J., Gelernter, J., Hewitt, J.K., Kreek, M.J., Lachman, H., Leppert, M., Li, M.D., Madden, P., Miner, C., Pollock, J.D., Pomerleau, O., Rice, J.P., Rutter, J.L., Shurtleff, D., Swan, G.E., Tischfield, J.A., Tsuang, M., Uhl, G.R., Vanyukov, M., Volkow, N.D., & Wanke, K. (2004). Setting priorities for genomic research. Science, 304(4), 1445-7.

Goldsmith, H., Crabbe, J., Dawson, G., Gottesman, I.I., Hewitt, J., McGue, M., Pedersen, N., Plomin, R., Rose, R., Swanson, J. Research psychologists’ roles in the genetic revolution. American Psychologist, 2003, 58, 318-319.

Hewitt, J.K. Behavior Genetics: From genome to behavior. Behavior Genetics, 2001, 31, 401. [Editorial]

Stallings, M.C., & Hewitt, J.K. Review of Conceptualization and measurement of organism-environment interaction. Behavior Genetics, 1994, 24, 103-104.

Hewitt, J.K. There is indeed no substitute for multivariate genetic and environmental analyses.
Behavioral and Brain Sciences, 1991, 14:3, 397 [An open peer commentary]

Hewitt, J.K. The 1991 BGA meeting in St. Louis, Missouri, Behavior Genetics, 1991, 21, 597-599.

Hewitt, J.K. The 1990 BGA meeting in Aussois, France, Behavior Genetics, 1990, 20, 757-759.

Hewitt, J.K. The 1989 BGA meeting in Charlottesville, Behavior Genetics, 1989, 19, 784-786.

Hewitt, J.K. Review of Perspectives in Behavior Genetics by J.L. Fuller and E.C. Simmel. Animal Behavior, in press, 1987.

Hewitt, J.K. Review of Psychometrics and psychology by P. Kline. Journal of Literary Semantics, 1981, 10, 58-59.

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EDUCATION

B.Sc. (1st Class Honours) Psychology 1973.
Place: Dept. of Psychology, University of Birmingham. Other subjects taken: Philosophy and Genetics.

M.Sc. Applied Genetics, September 1974.
Place: Dept. of Genetics, University of Birmingham, England.
Research Project: An analysis of data from a twin study of social attitudes.
Supervisor: L.J. Eaves
Professor: J.L. Jinks

Ph.D.1978 The genetic control of activity, reactivity and learning in a natural population of wild rats (Rattus norvegicus).
Place: Institute of Psychiatry, Univ. of London.
Supervisor: D.W. Fulker
Professor: H.J. Eysenck

B.A. Mathematics 1982.
Place: Open University (by correspondence).
Specialist courses: Linear Algebra, Abstract Algebra, Statistical Inference.

POSTDOCTORAL TRAINING OR SPECIAL EXPERIENCE

October 1974 - August 1977, Research Worker, Department of Psychology, Institute of Psychiatry, London.

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ACADEMIC APPOINTMENTS

July 2001 - present, Director, Institute for Behavioral Genetics

August 1992 - present, Professor of Psychology, and Faculty Fellow of Behavioral Genetics, University of Colorado, Boulder, Colorado, USA.

July 1990 - August 1992, Associate Professor

July 1987 - June 1990, Assistant Professor, Department of Human Genetics, Medical College of Virginia, Richmond, Virginia, U.S.A.

September 1977 - August 1987, Lecturer in Psychology, Department of Psychology, University of Birmingham, England.

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VISITING APPOINTMENTS

July 1986 - June 1987, Affiliate Research Assistant Professor (visiting). Department of Human Genetics, Medical College of Virginia, Richmond, Virginia, U.S.A.

September 1985 - June 1986. Visiting Associate Professor, Department of Biology, William Patterson College, New Jersey, U.S.A.

June 2002-present, Professor of Psychiatry (Attendant Rank), University of Colorado School of Medicine

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MEMBERSHIPS: SCIENTIFIC, HONORARY AND PROFESSIONAL SOCIETIES

Behavior Genetics Association
American Society of Human Genetics
American Psychological Society
American Association for the Advancement of Science

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SPECIAL AWARDS, FELLOWSHIPS, RESEARCH SUPPORT AND OTHER HONORS

Awards
Open Scholarship, Birmingham University, 1970.
Undergraduate Prize, Birmingham University, 1973.
First Class Honors, Birmingham University, 1973.
Dobzhansky Award for outstanding lifetime research accomplishment in the field of behavioral genetics, June, 2008.
Department of Psychology and Neuroscience Faculty Research Award, 2010.

Fellowships
Bethlehem-Maudsley Research Fellow, 1974-1977.

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Current Active Support (funding is annual direct costs.)

Workshop on Methodology of Twin Studies

5 R25 MH019918-18 (Hewitt)
08/27/08-06/30/13
5% acad/0.45 acad
NIH/NIMH
$131,120
5% sum/.15 sum

The major goal of this project is to provide five training and information-sharing workshops for researchers involved in twin and family genetic epidemiology studies wishing to learn the latest methodology for data analysis and experimental design.

Center on Antisocial Drug Dependence:  The Genetics of HIV Risk Behaviors

2 P60 DA011015-12 (Hewitt - Director of Center)
05/01/09-02/28/14
NIH/NIDA
$1,724,832                                                                                        

The overall goal of this Comprehensive P60 Center is to contribute to our understanding of the etiology of individual differences in behavioral control or behavioral disinhibition, the relationship of this to drug abuse and the development of dependence, and the role that these play in the propensity for risky behaviors that may result in STDs, including HIV/AIDS.

Core A: The Administrative, Educational, and Ethics Core (Hewitt)  

$291,582
20% acad/1.8 acad

The major goal of the administrative and educational core is to facilitate interactions among an interdisciplinary group of clinicians, behavioral geneticists, and molecular biologists at the Health Sciences Center and Boulder Campus of the University of Colorado. The educational component supports postdoctoral training and K-12 community outreach. A unique feature of the core is the incorporation of an ethicist who will work alongside the other Center investigators. Role: PI

Core B:  Data Management, Informatics and Biostatistics (McQueen)

$169,976
12% acad/1.08 acad

This Core will be responsible for the incorporation of new HIV-relevant risk and impulsiveness measures into existing interview protocols, the integration of new and previously collected data, the dissemination of consolidated data sets to Center researchers, the improvement analysis capability, and the development and application of novel statistical methods for analysis of complex phenotypes that are required to meet the specific needs of the Component Projects. Role: Co-I

Component I: Clinical and GWAS studies – Denver (Hopfer/McQueen)

$419,319
10% acad/0.90 acad

This component will identify specific genetic loci that influence behavioral disinhibition. To do this, we will conduct a genome wide association (GWAS) study on an existing sample of 1000 adolescent cases and 1000 controls with Substance Dependence, Conduct Disorder, and HIV-related risk behaviors, and a newly ascertained sample of 600 adolescents recruited from adolescent substance abuse treatment programs and a control sample of 600 adolescents without serious substance or behavioral problems. Role: Co-I

Component 2:  Clinical Family and Community Twin, Family, and Adoption Studies (Stallings)

$376,234
5% acad/0.45 acad

The goal of this component is a 5-year follow-up assessment of 285 families of subjects formerly in treatment for substance use disorder (SUD) and conduct disorder (CD) as adolescents and 200 community control families. The study will provide important information regarding family influences underlying SUD & CD, the generality versus specificity of familial influences on these behaviors, and the identification of family factors that differentiate persistent versus adolescent-limited problem behavior. Role: Co-I

The National Longitudinal Study of Adolescent Health
Subcontract to Inst. for Behavioral Genetics
Project V: Gene*Environment Contributions to Drug Use and Problem Behavior Trajectories (Hewitt)  

5 P01 HD031921-15 (Harris)
01/01/06-12/31/10
3% sum/.90sum
NIH/NICHD
$ 111,960 (sub only)                                                                                           

This data analysis subproject will examine the developmental trajectories of drug use and related behaviors, including conduct problems and risky sexual behavior.

IBSC:  Determinants of Executive Function and Dysfunction (Banich)
Subcontract to Inst for Behavioral Genetics (Hewitt)  

1 P50 MH079485-03 (Banich)
04/22/2008-01/31/2013
NIH/NIMH
5.5%acad/.05 acad
$143,525 (sub only)


Project 4:  Genetic Mechanisms of Executive Functions
The goal of this project is to use molecular genetic analyses in concert with computational modeling to begin to specify in more detail how the dopamine system regulates three correlated but separable executive functions - inhibiting prepotent response, updating working memory, and shifting mental sets.  We will analyze existing molecular and psychometric data on approximately 800 individual twins who were tested on nine index executive tasks at age 17 and were also tested on general cognitive ability and IQ at age 16.

Genetics of Adolescent Antisocial Drug Dependence (COMRAD)

5 R01 DA012845-08(Hewitt)
07/15/2008-12/31/2012
20% acad/1.8 acad
33% sum/1.0 sum
NIH/NIDA
$455,202

This COMRAD proposal continues a multisite collaboration, initiated under DA 012845, to conduct a prospective study to address critical issues in the genetic epidemiology of adolescent onset antisocial drug dependence. We will complete five year follow-up assessments, examine drug use and antisocial behavior trajectories and their predictors, and we will conduct genome wide association analyses of persistent adolescent-onset antisocial drug dependence.

Executive Functions and Self-Regulation:  A Twin Study

5 R01 MH063207-08 (Hewitt)
12/01/07-11/30/12
15%acad/1.35 acad
15% sum/0.45 sum
NIH/NIMH 
$298,409

This twin study will assess, during the transition from adolescence to young adulthood, genetic and environmental contributions to:  stability and change in executive functioning:  individual differences in self-regulation; and the relationships between executive functions and self-regulation.

Earlier Support

NIH/NICHD- "Testing a Developmental Model of Conduct Problems," 5 R01 HD050346-02, 09/01/07-06/30/12, $233,058, Co-Investigator, 8.3% academic year effort

NIH/NIMH- "Abnormal Eye Movement in Schizophrenia: Genome-Wide Scan," 5 R01 MH066115-05, 01/09/04-12/31/09, $14,891 (subcontract to IBG), Co-Investigator, 3% summer effort

John Templeton Foundation- "The genetics of high cognitive abilities," 09/01/08-12/31/10, Co-Investigator, 2% academic year effort

NIH/NIMH-" Executive Functions and Self-Regulation: A Twin Study," 2 R56 MH063207-06A1, 06/01/01-05/31/08, Principal Investigator, $323,389, 15% academic year effort, 15% summer effort

NIH/NIMH- "Workshop on Methodology of Twin Studies," 5 R25 MH019918-15, 07/01/03-06/30/08, Principal Investigator, $144,009, 5% academic year effort, 33.3% summer effort

NIH/NEI-"Variance Component Models for Mapping QTLs," 5 R01 EY012562-08, 09/01/02-08/31/08, Principal Investigator, $290,044 (no cost ext), 10% academic year effort

NIH/NIDA "Genetics of Adolescent Antisocial Drug Dependence," Sub-component to the Inst. for Beh. Genetics, DA 012845, 09/15/00-02/28/06, Co-Investigator, $75,377,  16.5% summer effort

NIH/NIAAAB"NYS Family Study:  Problem Alcohol Use and Problem Behavior," Sub-component to the Inst. for Behav. Genetics, AA 011949, 09/30/00-08/31/05, Principal Investigator, $213,364, 6.67% academic year effort

NIH/NIAAAB"Alcohol Dependence: Integrating Genetic & fMRI Methods," AA 011473, 05/05/05-06/30/10, Co-Investigator, $330,505, 5% academic year effort (Grant transferred to New Mexico when PI moved.)

NIH/NIDAB"Progress of craving and addiction: Genetic factors," DA14642, 12/01/01-11/30/06, Co-Investigator, $250,000

NIH/NIAAAB "NYS Family Study: Problem Alcohol Use and Problem Behavior," AA11949,  09/30/00-08/31/06, Co-Principal Investigator, annual direct costs $940,896 (no cost extension).

NIH/NICHDB"Determinants of Behavioral Development in Children," HD 010333, 06/01/03-05/31/07, Co-Investigator, $244,145, 16.7% summer effort

NIH/NIAAAB"Genetic Association and Stratification," AA 014250, 09/30/03-08/31/06, Co-Investigator, $125,000, 5% academic year effort and 5% summer effort

NIH/NICHDB"Behavioral Genetic Analysis of Adolescent Health Risk," Sub-component to the Inst. for Behav. Genetics, HD 031921, 07/01/02-01/31/04, Principal Investigator, $105,314, 5% academic year effort & 5% summer effort

NIH/NICHDB"Research TrainingBDevelopmental Behavioral Genetics," Competitive Renewal, 2732HD07289,  09/01/00-04/30/05, Principal Investigator, annual direct costs $169,951

NIH/NIAB"Biometrical Analysis of Personality in Adulthood," AG 17949, 04/01/00-03/31/03, Co-Principal Investigator, annual direct costs $75,000

NIMHB"Transition into Early Adolescence," MH43899 (renewal), 03/01/00-11/30/03, Principal Investigator, annual direct costs $205,682

John D. and Catherine T. MacArthur FoundationB"Family Influences on Behavioral Development," 99-59585 HCD, 11/01/99-12/31/01, Principal Investigator, $42,000

NIH/NEIB"Variance Components Models for Mapping QTLs," EY 12562, 12/07/98-11/30/02, Principal Investigator, annual direct costs $186,133, 15% academic year effort

NIMHC"Workshop on Methodology of Twin Studies," MH19918, (renewal), 09/01/98-08/31/03, Principal Investigator, $85,203

NIH/NICHD--"Nature and Nurture in Social Demography: An Adoption Study," HD 36773, 08/01/98-05/31/03, Co-Investigator, $209,659

NICHD--"Determinants of Behavioral Development in Children," HD10333, (competitive renewal), 06/01/98-05/31/03, Co-Investigator, $215,776

The William T. Grant Foundation--"Origins of Successful and Unsuccessful Transitions to Adulthood: The Colorado Adoption Project (CAP)," 98162094, 06/01/98-05/31/01, Principal Investigator, $109,368

NIDA--"Antisocial Drug Dependence: Genetics and Treatment," DA11015, 08/01/97-06/30/02:

"Component I: Adolescent Drug/Alcohol Dependence: Genetics and Treatment," Principal Investigator, Boulder Component, $49,732 (sub only), 5% academic year effort

"Component IV: Heritable Early Indicators of Risk for Drug Dependence," Principal Investigator, $173,136 (sub only)

       "Administrative/Educational, Core A, UCB" Co-Investigator, $24,347

       "Genetics and Treatment, Assessment Core B, UCB" Principal Investigator, $19,554

Veteran's Administration, Research Center for Basic and Clinical Studies of Alcoholism--"Human Genetics Core" and "Heritable Early Indicators of Alcohol Abuse" components, V554P-3828/3829, 07/1/96-03/01/99, Principal Investigator, $76,500 (sub only)

NICHD--"A Twin/Adoption Study of Development in Middle Childhood," HD 18426-15, 06/01/96-05/31/99, Co-Investigator, $44,436 (sub only)

NIMH--"Workshop on Methodology of Twin Studies," MH19918, 09/01/95-08/31/98, Principal Investigator, $61,914

NIMH--"Transition into Early Adolescence: A Twin/Adoption Study," MH43899, 12/01/94-11/30/99, Principal Investigator, $260,437

NIMH--"Adolescent Behavioral Development: A Twin Study," MH45268, (renewal) 05/01/94-04/30/99, Principal Investigator (PI-ship transferred to L.J. Eaves following my relocation to Colorado), annual direct costs $548,638 rising to $758,569.  Priority score 117 in top 3%, 1989‑94. 50% effort.   Current effort, 15% academic year, with L.J. Eaves PI, subcontracted through University of Colorado to Hewitt, approx $125,000 over five years, $26,250 total, $18,293 direct (sub only)

John D. and Catherine T. MacArthur Foundation--"MacArthur Longitudinal Twin Study: A Proposal to Study Individual Differences in Adaptation Processes and Outcomes at Seven Years," 93-24177A, 07/01/93-06/30/00, Principal Investigator, $271,349

NICHD--"Determinants of Behavioral Development in Children," HD10333, 06/01/93-05/31/98, Co-Investigator, $171,257

NIDA--"Adolescent Substance Abuse and Their Families," DA05131, Component 2 (PI:Fulker), Drug Abuse Research Center (PI:Defries), 1993-1997, Hewitt Co-Investigator, total direct costs $607,082.

NIMH--"Workshop on Methodology of Twin Studies," MH19687, 09/92-08/94, Principal Investigator, annual direct costs $40,000

Carman Trust for Scientific Research--"Genetics and Development of Adolescent Mental Health," Principal Investigator, PI-ship transferred to J. Meyer following my relocation to Colorado in 1992, annual direct costs $34,000.

NIMH--"Workshop on Twin Methodology," MH19392, 1990--short term training grant, Principal Investigator,  (Priority Score in top 5%) cost $23,359

NIAAA--"Personality and Clinical Psychobiology: Genetics," AA08672, 1990-1994, 25% effort, Principal Investigator, annual direct costs $204,773

NHLBI--"Childhood Passive Smoking: Cohort Study of Cardiac Risk," HL38878, 04/01/89‑94, Co-Investigator, annual direct costs $75,027

NHLBI--"Longitudinal Twin Study: Cohort Study of Blood Pressure," HL31010, 08/88‑07/93, Co‑Investigator, annual direct costs $460K

NIAB"Genetic Models of Development and Aging," AG04954, (renewal), 07/88-06/93, Co‑Investigator, annual direct costs $104K

NIGMB"Resolving Power of Kinship Analysis for Genetic Research," GM30250, 02/86-01/91, Co‑Investigator, annual direct costs $62K

Neuropsychological investigations of children at high risk for schizophrenia:  extension.  Mental Health Foundation support, 1986.  Stlg 5177.

During the years 86‑88, I was an investigator for NIH grants to study Genetic Models of Development and Aging (AG‑04954, 7/84 ‑ 6/88; Annual support $49,211), Biological and Cultural Determinants of Alcohol Consumption (AA‑06781, 8/85 ‑ 7/89; Annual support $95,168), Genetic and environmental influences on anxiety and depression (MH‑40828, 2/86 ‑ 1/90; Annual support $396,181), Resolving Power of Kinship Analysis for Genetical Research (GM‑30250, 2/86 ‑ 1/91; Annual support $75,115).

NIAAAB"Biological and Cultural Determinants of Alcoholism," AA06781, 08/85-07/89, Co‑Investigator, annual direct costs $116K

Genetic and environmental analysis of cardiac reactivity and hypertension.  MRC project grant jointly with Drs. D. Carroll (PI), K. Last and Professor J.L. Jinks. 1984‑1987.  Stlg 88,627.

Neuropsychological investigations of abnormal interhemispheric integration and anomalous lateralization of function in children at high risk for schizophrenia.  Research grant from Mental Health Foundation.  1984‑1986.  Stlg 22,447.

Genetic and environmental determinants of cardiac reactivity and hypertension.  Supported by project grant from the (British) Medical Research Council, 1982‑1983, jointly with Dr. Carroll (PI) and K. Last.  Stlg 8,526

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MAJOR COMMITTEES and HONORS

Member, Conference Committee for 1983 Behavior Genetics Association meeting.

Member of the Committee of the Psychobiology Section of the British Psychological Society 1983-1985.

Member of the Publication and Communications Committee of the Behavior Genetics Association, 1984-1987.

Co-organizer, 3rd William Patterson College Symposium on Social Behavior: Developmental behavior genetics in an evolutionary context. November 1986.

Elected Secretary to the Behavior Genetics Association, 1989-1992.

Organizing committee 2nd, 3rd, 4th, 5th and 6th International Workshop on Twin Methodology. Leuven, Belgium, September, 1989, 1991; Boulder, Colorado, July, 1990, Spring, 1993, Winter 1994.

Emotion and Personality Review Committee, National Institute of Mental Health, 1992-1994.

Chairman, Professional Training Subcommittee of the Behavior Genetics Association 1992-1995.

Epidemiology Review Committee, National Institute of Mental Health, 1994-1997.

President-Elect, Behavior Genetics Association, 1999-2000.

President, Behavior Genetics Association, 2000-2001.

Chair, APA working group on genetics research issues, 2002 - present.

Dobzhansky Award for outstanding lifetime research accomplishment in the field of behavioral genetics, June, 2008.

Invited reviewer for German Science Council, Berlin, Germany, April, 2009.

Invited reviewer for Public Health Research Center, University of Hong Kong, August, 2009.

Department of Psychology and Neuroscience Faculty Research Award, 2010.

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OTHER SIGNIFICANT SCHOLARLY OR RESEARCH EXPERIENCE

Doctoral and postdoctoral supervision
Genetic architecture of courtship, courtship modification, conditioning and activity in Drosophila melanogaster.
M.F. Collins, 1980-1983, Ph.D. awarded 1983
Dr. Collins took up an SERC postdoctoral fellowship in my department and our collaborative research in this area continued until January 1985.

Interhemispheric transfer deficits in children at risk for schizophrenia
S.Hallett, 1983-1987, Ph.D. awarded 1987

Familial aspects of hypertension
J.Sims, 1984-88 (supervised jointly with Dr. D. Carroll), Ph.D. awarded 1988.

Development of interhemispheric transfer deficits in children at risk for schizophrenia
D.Quinn, 1985-1986

Genetic and environmental influences on smoking and motives for smoking
L.Gynther, Institute for Behavioral Genetics, 1992-94, Ph.D. awarded

Michael Stallings (postdoctoral fellow, 1993-94)

Chandra Reynolds (postdoctoral fellow, 1994-95)

Marianne Wambolt, MD (postdoctoral fellow, 1997-2002) (Mentored Clinical Scientist; genetic and social influences on youth health behavior.)

Bo Bishop (postdoctoral fellow, 1998-2001)

Soo Rhee (postdoctoral fellow, 1999-2001)

A twin study of genetic and environmental influences on anxiety during childhood and adolescence
T.Topolski, Institute for Behavioral Genetics, 1993-97, Ph.D. awarded

Life events and depressed mood
J. Lessem, Institute for Behavioral Genetics, 1993-1999, Ph.D. awarded

Temperament through middle childhood
Carol van Hulle, Institute for Behavioral Genetics, 1996-2001, Ph.D. awarded

Steve Wilson (doctoral student, 1993-2002, incomplete)

Elise Eller (postdoctoral fellow, 2001-2002)

Genes, development and externalizing behaviors during middle childhood and adolescence
Brett Haberstick, Institute for Behavioral Genetics, 2000-2005, Ph.D. awarded

Naomi Friedman (postdoctoral fellow, 2002-2005)

Tanya Button (postdoctoral fellow, 2005 - 2006)

Christian Hopfer, M.D. (K08, Mentored Clinical Scientist, 1999-2004)

David Timberlake (postdoctoral fellow, 2003 - 2006)

Soo Rhee (KO1, Mentored Scientist, 2001-2006)

Susan Young (KO2, Mentored Scientist, 2001-2006)

Marissa Ehringer, PhD (K01, Mentored Scientist, 2005-2010)

Joe Sakai , MD (K08, Mentored Clinical Scientist, 2005-2010)

Jason Boardman, PhD (K01, Mentored Scientist, 2005-2010)

Development of drug abuse and co-morbid disorders Rohan Palmer, Insititute for Behavioral Genetics, 2005 – 2010, Ph.D. awarded

Current students and fellows, Institute for Behavioral Genetics, University of Colorado

The etiology of executive function and general cognitive ability
Angela Brant (doctoral student, 2007- )

Evolutionary roles of homozygosity & copy number variation in mental disorders
Matthew Keller, PhD (K01, Mentored Scientist, 2010-2014)

Behavior genetic models of causation relating environments to psychopathology
Teresa deCandia (doctoral student, 2009- )

Committees for: Medical College of Virginia/Virginia Commonwealth University:
Sally Hunsberger (Biostatistics Ph.D.)
Jennifer Stainer (Human Genetics Ph.D.)
Debbie Bowles (Human Genetics Ph.D.)
Robert DaMensah (Biostatistics Ph.D.)
Judy McLaughlin (Human Genetics, Ph.D.)
Laura Truskowski (Biostatistics, M.S.)
Audrey Schuler (Social Work, Ph.D.)
Marianne Van Den Bree (Human Genetics, Ph.D.)
Jeanine Gau (Psychology, Ph.D.)

University of Colorado
Stacey Cherny (Psychology, Ph.D.)
Larry Rodriguez (Psychology, Ph.D.)
Stephanie Schmitz (Psychology, Ph.D.)
Maricela Alarcón (Psychology, Ph.D.)
Donna Miles (Psychology, Ph.D.)
Valerie Knopik (Psychology, Ph.D.)
Marcie Chambers (Psychology, Ph.D.)
Javier Gayán (Psychology, Ph.D.)
Naomi Freedman (Psychology, Ph.D.)
Erin Bissel (EPOB, Ph.D.)
Robert Buchwald (EPOB, Ph.D.)
Heather Gelhorn (Psychology, Ph.D.)
Noa Heiman (Psychology, Ph.D.)
Laura Sobik (Psychology, Ph.D.)
Rohan Palmer (Psychology, Ph.D.)
Angela Brant (Psychology, Ph.D.)
Robert Jay Schulz-Heik (Psychology, Ph.D.)
Angela Friend (Psychology, Ph.D.)

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Teaching experience:

The details of the formal courses I have taught are given below where it will be clear that apart from my research interests in behavioral and quantitative genetics, I have also developed teaching in statistics, measurement and design both at the Undergraduate and Post_graduate level.

Teaching chronology:

Demonstrator to Introductory Statistics Course. Extramural Department, University of Birmingham, 1974.

Tutor to Open University Summer School, Quantitative Genetics, 1977, 1978; Introduction to Psychology, 1981, 1982, 1983.

1977 -1985
Lecturer in Introductory Statistics, Psychometrics. Personality Measurement, Research Methodology and Behavior Genetics on undergraduate courses in the Department of Psychology, University of Birmingham.

Lecturer in Quantitative Methods and Research Methodology on postgraduate course in Clinical Psychology and Doctoral Programme, Department of Psychology, University of Birmingham.

Tutor to Psychological Measurement course, Extramural Department, University of Birmingham, 1979.

Tutor to Introduction to Statistics for Psychology and Education, Extramural Department, University of Birmingham, 1982.

Tutor to Research Methods in Education and Social Science at Undergraduate and Postgraduate Level, Open University, 1983, 1984, 1985.

1985-86
Lecturer in Behavior Genetics (course BIPY 475) and Genetics of Psychopathology (course BIPY 399) to Biopsychology Honours Programme and Lecturer in Research Methods (course BID 533) to Graduate Program in Biology. Department of Biology, William Patterson College of New Jersey, U.S.A.

1986-88
Contributing lecturer to courses 501 Introduction to Human Genetics, 519 Quantitative Genetics and 520 Principles of Human Behavior Genetics (course organizer) in Department of Human Genetics, Virginia Commonwealth University, Richmond, VA, USA.

1988-92
As 1986-88, plus GN502 Advanced Human Genetics and M1 Human Genetics.
Fall 1992, contributing lectures to Quantitative Human Sociobiology.

1992-93
Genetics and Developmental Psychopathology (Psychology 4525).
Contributing faculty for Introduction to Behavior Genetics (Psychology 4102)

1993-94
Seminar: Behavior Genetics (Psychology 7102)
Behavioral Genetics (Psychology 4102/5102)

1994-95
Seminar: Behavioral Genetics (Psychology 7102)
Concepts in Behavioral Genetics (Psychology 5112)
Behavioral Genetics (Psychology 4102/5102)

1995-96
Seminar: Behavioral Genetics (Psychology 7102)
Behavioral Genetics (Psychology 4102/5102)
Behavioral Genetics Lab (Psychology 4112)

1996-97
Seminar: Behavioral Genetics (Psychology 7102)
Behavior Genetics (Psychology 4102/5102)
Behavior Genetics Lab (Psychology 4112)

1997-98
Behavioral Genetics Lab (Psychology 4112)
Behavioral Genetics (Psychology 4102/5102)
Concepts in Behavioral Genetics (Psychology 5112)
Biometrical Methods/Behav Genetics (Psychology 5242)

1998-99
Seminar: Behavioral Genetics (Psychology 7102)

1999-2000
Biometrical Methods/Behav Genetics (Psychology 5242)

Fall 2000
Concepts in Behavioral Genetics, (Psychology 5112)
Computer Systems

Spring 2001
Concepts in Behavioral Genetics, (Psychology 5112)
Benchmark Papers in Behavior Genetics

Fall 2001
Biometrical Methods/Behav.Genetics (Psychology 5242)

Fall 2002
Research in Behavioral Genetics (Psychology 7012)

Spring 2003
Seminar: Behavioral Genetics (Psychology 7102)

Fall 2003
Biometrical Genetics (Psychology 5242)

Spring 2005
Seminar: Behavioral Genetics (Psychology 7102)

Fall 2006
Seminar: Behavioral Genetics (Psychology 7102)

Spring 2007
Concepts in Behavioral Genetics (Psychology 7102)

Spring 2008
Concepts in Behavioral Genetics (Psychology 7102)

Spring 2009
Seminar: Behavioral Genetics (Psychology 7102)

 

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Workshops and Conferences: Teaching and Organization

Contributing Faculty for the Second International Course on Twin Methodology, Leuven, Belgium, Sept. 1989,

the Third International Workshop on Twin Methodology, Boulder, Colorado, July 1990,

the Fourth International Workshop on Twin Methodology, Leuven, Belgium, Sept. 1991,

the Fifth International Workshop on Twin Methodology, Boulder, Colorado, May, 1992,

the Sixth International Workshop on Twin Methodology, Boulder, Colorado, March, 1994,

the Seventh International Workshop on Twin Methodology, Helsinki, Finland, Sept., 1995.

the Eighth International Workshop on Twin Methodology, Boulder, Colorado, March, 1996.

Host organizer and teacher of Ninth International Workshop on Twin Methodology, Boulder, Colorado, March, 1997.

Host organizer and teacher of Tenth International Workshop on Twin Methodology, Boulder, Colorado, March, 1998.

Contributing faculty to the NATO Advanced Study Institute on Statistical Methods for Genetic Studies, Eleventh International Workshop on Twin Methodology, Leuven, Belgium, Sept., 1998,

Host organizer and teacher of Twelfth International Workshop on Twin Methodology, Boulder, Colorado, March, 1999.

Host organizer and teacher of Thirteenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2000.

Program chair, 30th Annual Meeting, Behavior Genetics Association, June 28-July 1, 2000, Burlington, VT.

Host organizer of Fourteenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2001.

Host organizer and teacher of Fifteenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2002.

Host organizer and teacher of Sixteenth International Workshop on Twin Methodology, Boulder, Colorado, March,2003.

Host organizer and faculty of Seventeenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2004.

Host organizer and faculty of Eighteenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2005.

Host organizer and faculty of Nineteenth International Workshop on Twin Methodology, Boulder, Colorado, March, 2006.

Host organizer and faculty of Twentieth International Workshop on Twin Methodology, Boulder, Colorado, March 2007.

Host organizer and faculty of Twenty-first International Workshop on Twin Methodology, Boulder, Colorado, March 2008.

Host organizer and faculty of Twenty-second International Workshop on Twin Methodology, Boulder, Colorado, March, 2009.

Host organizer and faculty of Twenty-third International Workshop on Statistical Genetics of Methodology of Twin and Family Studies: Introductory Course, Boulder, Colorado, March 2010

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Professional duties related to research

Editor-in-Chief : Behavior Genetics (July, 2001 - present).

Chair, APA Working Group on Genetic Research (Nov., 2002-present).

I serve as referee for papers submitted to Nature, Animal Behavior, British Journal of Psychology, British Journal of Addiction, Quarterly Journal of Experimental Psychology, Heredity, Genetic Epidemiology, Journal of Gerontology: Psychological Sciences, Journal of Comparative Psychology, Psychological Science, Journal of Studies on Alcohol, Appetite, Drug and Alcohol Dependence, Genes, Brain and Behavior.

Invited member of NIMH advisory workshop on "Social regulation, basic behaviors, and developmental transition: A behavioral genetics perspective" (Sept., 1990).

Invited member of NIMH advisory workshop on Childhood and Adolescent Mental Health, Nov. 1990.

Invited member of NIAAA working group on "Longitudinal studies of children at high risk for alcohol problems" (May 1990).

I have regularly reviewed grant proposals for NIH and participate in site visits on an ad hoc basis.

Invited presenter: NIH workshop on “Research Priorities in Eating Disorders.”

Regular committee member, Emotion and Personality IRG, NIMH, 1992-94.

Regular committee member, Epidemiology and Genetics IRG, NIMH, 1994-1997.

Director of the Animal Psychology Laboratory, Department of Psychology, University Birmingham, 1980-83.

I have read papers or presented abstracts at the following conferences or institutions:
Association for the Study of Animal Behavior, Sheffield, England, 1978.
Population Genetics Group. Sheffield, England, 1978.
Behavior Genetics Association, Connecticut, U.S.A., 1979.
Behavior Genetics Association, New York, U.S.A., 1981.
Miami Symposium on Social Behavior, Ohio, U.S.A., 1981.
Dept. of Biology, University of Chicago, Illinois, U.S.A., 1981.
Dept. of Psychology, Purdue University, U.S.A., 1981.
Institute for Behavioral Genetics, Colorado, U.S.A., 1981.
Eugenics Society, London, England, 1983.
Behavior Genetics Association, London, England, 1983.
Dept. of Psychology, Ulster Polytechnic. Belfast, N. Ireland, 1983.
Dept. of Genetics, Trinity College, Dublin, Ireland, 1983.
British Psychological Society, London, 1983.
Behavior Genetics Association. Bloomington, Indiana, U.S.A., 1984.
Department of Psychology, University of Colorado, Boulder, Colorado, U.S.A., 1985.
Department of Psychology, University of Minnesota, Minneapolis, Minnesota, U.S.A., 1985.
Department of Human Genetics, Medical College of Virginia, 1986.
Department of Biology, Wesleyan University, Connecticut, U.S.A., 1986.
Behavior Genetics Association, Honolulu, Hawaii, U.S.A., 1986.
Department of Pediatric Cardiology, Medical College of Virginia, 1986.
3rd William Paterson College Symposium on Social Behavior, NJ, 1986.
Department of Psychology, University of Colorado, 1987.
2nd International Conference on Quantitative Genetics, Raleigh, NC, 1987.
Departmentof Human Genetics, Medical College of Virginia, 1988.
Behavior Genetics Association, Nijmegen, Netherlands, 1988.
Society for Psychophysiological Research, San Francisco, 1988.
NIMH conference on genetic approaches to understanding health damaging behaviors. Philadelphia, 1988.
Western Psychiatric Institute and Clinic, Pittsburgh, 1988.
McArthur Foundation conference on Health and Stress, Philadelphia, 1988.
Behavior Genetics Association, Charlottesville, VA, 1989.
6th International Congress on Twin Studies, Rome, Italy, 1989.
Society for Behavioral Medicine, Chicago, Illinois, 1990.
Behavior Genetics Association, Aussois, France, 1990.
Institute for Behavioral Genetics, Colorado, USA, 1990.
Institute for Social Research, University of Michigan, Ann Arbor, USA. 1990.
Dept. of Biostatistics, Medical College of Virginia, 1991.
Dept. of Human Genetics, Medical College of Virginia, 1991.
Behavior Genetics Association, St. Louis, Missouri, 1991.
Department of Psychology, University of Colorado at Boulder, 1992.
Department of Human Genetics, Medical College of Virginia, 1992.
Quantitative Group, Department of Human Genetics, Medical College of Virginia, 1992.
Behavior Genetics Association, Boulder, CO, 1992
American Psychological Association, Washington, DC, 1992.
Behavior Genetics Association, Sydney, Australia, 1993.
World Congress on Psychiatric Genetics, New Orleans, 1993.
Behavior Genetics Association, Barcelona, 1994.
International Congress on Twin Studies, Richmond, VA, 1995.
Behavior Genetics Association, Richmond, VA, 1995.
FASEB conference: Genetic and behavioral influences on nutrient metabolism and obesity; Copper Mountain,CO, 1995.
Research Priorities in Eating Disorders, NIH workshop, New York, 1996.
Behavior Genetics Association, Pittsburgh, PA, 1996.
Behavior Genetics Association, Toronto, Canada, 1997.
Behavior Genetics Association, Stockholm, Sweden, 1998.
International Society for Twin Studies, Helsinki, 1998.
Behavior Genetics Association, Vancouver, Canada, 1999.
NIH Statistical Genetics Initiative Workshop, Half Moon Bay, 1999.
Behavior Genetics Association, Burlington, VT, 2000.
Developmental Psychobiology Research Group, Denver, CO, 2001.
FCDEF, University of Porto, Portugal, 2001.
Lyon-Voorhees Lecture, UCHSC, 2001.
Invited plenary lecture, College on Problems of Drug Dependence, Scottsdale, AZ, 2001.
Presidential Address, Behavior Genetics Association, Cambridge, UK, 2001.
Behavioral and Social Sciences Seminar Series, NIH, 2002.
Behavior Genetics Association, Chicago, 2003.
World Congress on Psychiatric Genetics, Quebec City, 2003.
American Society of Criminology, Denver, 2003.
Behavior Genetics Association, Aix-en-Provence, 2004.
Behavior Genetics Association, Los Angeles, 2005
Behavior Genetics Association, Storrs Connecticut, 2006
Research Society on Alcoholism, Baltimore, 2006
Secretary of Health and Human Services Advisory Committee on Genetics, Health, and Society, Baltimore, MD, 2006
Institute for Behavioral Sciences, University of Colorado, Boulder, Colorado, 2007
Neuropsychology Research Group, University of Denver, Denver, Colorado, 2007 Developmental
Psychobiology  Research Group, University of Denver and Health Sciences Center, Denver, Colorado, 2007
Behavior Genetics Association, Amsterdam, 2007
Behavior Genetics Association, Louisville, Kentucky, 2008
Add Health Users Conference, Bethesda, Maryland, 2008
Eating Disorders Workshop, Valencia, Spain, 2008
Public Health Research Center, University of Hong Kong, August, 2009
Behavior Genetics Association, Seoul, South Korea, 2010

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