The development of an optimal nosology of psychiatric disorders across the lifespan, with a specific focus on attention-deficit/ hyperactivity disorder (ADHD), learning disabilities, and other psychopathology that frequently co-occurs with ADHD and LD.
Selected Publications:
1. Willcutt EG, Pennington BF, Olson RK, DeFries JC (2007. )Understanding comorbidity: a twin study of reading disability and attention-deficit/hyperactivity disorder. American journal of medical genetics. Part B, Neuropsychiatric genetics, 144(6), 709-14. | pubmed abstract |
2. Friedman NP, Haberstick BC, Willcutt EG, Miyake A, Young SE, Corley RP, Hewitt JK. (2007) Greater attention problems during childhood predict poorer executive functioning in late adolescence. Psychological science, 18(10), 893-900. | pubmed abstract |
3. Bidwell LC, Willcutt EG, Defries JC, Pennington BF. (2007) Testing for neuropsychological endophenotypes in siblings discordant for attention-deficit/hyperactivity disorder. Biological psychiatry, 62(9), 991-8. | pubmed abstract |