Greater neural delay discounting on reward evaluation in anhedonia.

ABSTRACT:

Background/objective

Recent years have witnessed a surge of interest in dissecting the anticipatory and the consummatory aspects of anhedonia in terms of temporal dynamics. However, few research has directly examined reward valuation as a function of time in anhedonia.

Method

Using a delay discounting task, this event-related potential study examined the neural representation of rewards available immediately or in six months in a high-anhedonia group (N = 40) and a low-anhedonia group (N = 40) recruited from a nonclinical sample.

Results

We found that anhedonia was associated with greater neural delay discounting during reward evaluation. This was evidenced by a blunted effect of reward magnitude on the reward positivity (RewP) in the high-anhedonia comp

SUBMITTER: Guan C 

PROVIDER: S-EPMC11773226 | biostudies-literature | 2025 Jan-Mar

REPOSITORIES: biostudies-literature