Examining the effects of dopamine genes on verbal IQ within and between families

Citation

Schwartz, J. A. & Beaver, K. M. (2012). Examining the effects of dopamine genes on verbal IQ within and between families. Journal of Neural Transmission. vol. 120 (3) pp. 477-486

Abstract

Although research findings have revealed that both genetic and environmental factors contribute to variation in IQ at the individual level, no studies have examined how genetic differences contribute to differences in IQ within and between families. The current study uses data drawn from the National Longitudinal Study of Adolescent Health (Add Health) to examine the potential role genetic factors play in shaping differences in IQ scores within and between families. The results revealed that while genetic variation between family members did not significantly predict differences in IQ scores, family-level dopaminergic risk scores did significantly predict differences in family-level IQ. The implications of the results are elaborated upon, and suggestions for future research are discussed.

URL

http://dx.doi.org/10.1007/s00702-012-0881-0

Keyword(s)

Genetic Family

Reference Type

Journal Article

Journal Title

Journal of Neural Transmission

Author(s)

Schwartz, J. A.
Beaver, K. M.

Year Published

2012

Volume Number

120

Issue Number

3

Pages

477-486

ISSN/ISBN

1435-1463 (Electronic) 0300-9564 (Linking)

DOI

10.1007/s00702-012-0881-0

Reference ID

7633