Faculty Fellows
John Defries
447 UCB
Boulder, CO 80309-0447
phone: (303) 492-2839
fax: (303) 492-8063
email:
john.defries@colorado.edu
website:
http://ibgwww.colorado.edu/~defries
Research Interests:
Twin and adoption studies of cognitive abilities; genetics of learning disabilities; and use of DNA markers to locate genes that influence behavioral characters.
Selected Publications:
1. Wadsworth SJ, DeFries JC, Olson RK, Willcutt EG (2007) Colorado longitudinal twin study of reading disability. Annals of Dyslexia, 57(2), 139-60. | pubmed abstract |
2. Friend A, DeFries JC, Wadsworth SJ, Olson RK (2007) Genetic and environmental influences on word recognition and spelling deficits as a function of age. Behavior Genetics, 37(3), 477-86. | pubmed abstract |
3. Wadsworth SJ, DeFries JC. (2005). Genetic etiology of reading difficulties in boys and girls. Twin Research and Human Genetics, 8(6), 594-601. | pubmed abstract |