期刊论文

Xie, Guang-rong

英文

Psychiatry Research

0165-1781

2014

220

3

874-882

10.1016/j.psychres.2014.08.056

The purpose of the study was to assess the willingness to expend effort for a reward during decision-making in individuals with current depression, remitted depression and never-depressed controls on the EEfRT. We hypothesized that depressed individuals would exhibit deficits in their willingness to expend effort for reward and the deficits would be correlated with depression severity. We also hypothesized that participants with anhedonic symptoms would make fewer HC/HR options.

本校为其他机构

Anhedonia is a hallmark symptom of major depressive disorder (MDD). Preliminary findings suggest that anhedonia is characterized by reduced reward anticipation and motivation of obtaining reward. However, relatively little is known about reward-based decision-making in depression. We tested the hypothesis that anhedonia in MDD may reflect specific impairments in motivation on reward-based decision-making and the deficits might be associated with depressive symptoms severity. In study 1, individuals with and without depressive symptoms performed the modified version of the Effort Expenditure fo...