Bibliographic Details
| Title: |
Genetic Contribution to Variation in Risk Taking: A Functional MRI Twin Study of the Balloon Analogue Risk Task. |
| Authors: |
Rao, Li-Lin, Zhou, Yuan, Zheng, Dang, Yang, Liu-Qing, Li, Shu |
| Source: |
Psychological Science (0956-7976). Oct2018, Vol. 29 Issue 10, p1679-1691. 13p. 3 Color Photographs, 2 Diagrams, 3 Charts. |
| Subjects: |
Functional magnetic resonance imaging, Decision making |
| Abstract: |
Excessive risk-taking behaviors have been implicated as a potential endophenotype for substance use disorders and psychopathological gambling. However, the genetic and environmental influences on risk taking and the risk-related brain activations remain unclear. This study investigated the heritability of risk taking and the genetic influence on individual variation in risk-related brain activation. The Balloon Analogue Risk Task was used to assess individuals’ risk-taking behavior. In a sample of 244 pairs of young adult twins, we found that there was a moderate heritability (41%) of risk taking. Using voxel-level analysis, we found a moderate genetic influence on risk-related brain activation. We also found a moderate genetic correlation between risk-taking behavior and risk-related brain activation in the left insula, right striatum, and right superior parietal lobule in the active-choice condition. The present study provides important evidence for the genetic correlation between risk-taking behavior and risk-related brain activation. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
