In their research on the role of the serotonin transporter gene in depression,Caspi and his colleagues demonstrated that depressive episodes were:
A)most likely to occur in individuals with two long alleles under high-stress conditions.
B)more correlated with genetic than with environmental factors.
C)more correlated with environmental than with genetic factors.
D)the product of genetic and environmental interactions.

Question

Quizplus · Accepted Answer

The research found that depressive episodes were a product of genetic and environmental interactions, meaning that both factors contribute to the development of depression. Specifically, individuals with two long alleles of the serotonin transporter gene were more susceptible to depression, but only under high-stress conditions. This underlines the importance of considering both nature and nurture in understanding the causes of mental health disorders.

In Their Research on the Role of the Serotonin Transporter