Gene x Environment Interactions in Reading Disability and Attention Deficit Hyperactivity Disorder

2010

Shelley Smith
[email protected]
402-559-5314

This article examines Gene
Environment (G X E) interactions in two comorbid developmental disorders? reading disability (RD) and attention-deficit/hyperactivity disorder (ADHD)?as a window on broader issues on G X E interactions in developmental psychology. The authors first briefly review types of G X E interactions, methods for detecting them, and challenges researchers confront in interpreting such interactions. They then review previous evidence for G X E interactions in RD and ADHD, the directions of which are opposite to each other: bioecological for RD and diathesis stress for ADHD. Given these results, the authors formulate and test predictions about G X E interactions that would be expected at the favorable end of each symptom dimension (e.g., above-average reading or attention). Consistent with their prediction, the authors found initial evidence for a resilience interaction for above-average reading: higher heritability in the presence of lower parental education. However, they did not find a G
E interaction at the favorable end of the ADHD symptom dimension. The authors conclude with implications for future research.

Peer-reviewed publications in scholarly journals Published/In Press

Professionals, Students

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