Sex differences in sensitivity to dopamine receptor manipulations of risk-based decision making in rats
Description
The scientific literature has shown that females demonstrate more aversion to risk-taking than males. Studies have also demonstrated that the basal lateral amygdala, or BLA, is a critical hub for processing risk and reward information. And yet further research has shown that activity in the amygdala differs between males and females, and that the expression of particular dopamine receptors called D2 receptors are greater in females than in males. The authors hypothesized that one mediating mechanism that leads to greater risk aversion in females is differential activity of dopamine in the basal lateral amygdala.
Caitlin Orsini is an assistant professor in the departments of psychology and neurology at UT Austin.
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