Genetic Influence/Heritability

Carlson, S.R. & Iacono, W.G. (2006) Heritability of P300 amplitude development from adolescence to adulthood. Psychophysiology, 43, 470-480.

Herndon, R.W., McGue, M., Krueger, R.F. & Iacono, W.G. (2005). Genetic and Environmental Influences on Adolescents’ Perceptions of Current Family Environment. Behavior Genetics, 35, 373-380.

McGue, M., Elkins, I.J., Walden, B. & Iacono, W.G. (2005). The Essential Role of Behavioral Genetics in Developmental Psychology: Reply to Partridge (2005) and Greenberg (2005). Developmental Psychology, 41, 993-997.

Freivalds, S. (2004). Nature and Nurture: A new look at how families work. Families by Law: A Adoption Reader (pp. 85-87) New York and London: New York University Press.

Commings, D.E., Wu, S, Rostamkhani, M., McGue, M., Iacono, W.G., Cheng, L.C. & Mac Murray, J.P.. (2003). Role of clolinergic muscarinic 2 receptor (CHRM2) gene in cognition. Molecular Psychiatry, 8, 10-11.

Malone, S.M., & Iacono, W.G. (2002). Error rate on the antisaccade task: Heritability and developmental change in performance among preadolescent and late adolescent female twin youth. Psychophysiology, 39, 664-673.

Elkins, I. J., M. McGue, et al. (1997). "Genetic and environmental influences on parent-son relationships: evidence for increasing genetic influence during adolescence." Dev Psychol 33(2): 351-63.
Genetic and environmental influences on self-reported parent-child relationships were examined in a sample of 824 individual male twins and their parents. Cross-sectional comparisons of twin similarity at ages 11 and 17 were undertaken to identify developmental changes in the contribution of genetic and environmental factors to family relationships. Significant genetic influences were found on perceptions of parent-son conflict, regard, involvement, and overall support. Heritabilities were significantly higher in older twins, suggesting increased genetic influence with age. Age differences were present primarily in the father-son relationship. These results provide support for the proposal of S. Scarr and K. McCartney (1983) that the importance of active gene-environment correlations increases during adolescence. Older adolescents may have more choice and impact on the nature of the relationships they have with their parents.


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