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Self-report and behavioral measures of reward sensitivity predict the feedback negativity

Authors


  • The authors would like to thank Dr. Diego Pizzagalli, who provided the software for running and analyzing the results of the signal detection task.

Address correspondence to: Greg Hajcak, Department of Psychology, Stony Brook University, Stony Brook, NY, 11794-2500. E-mail: greg.hajcak@stonybrook.edu

Abstract

Rewards are integral to learning associations that aid in survival. The feedback negativity (FN), an event-related potential that differentiates outcomes indicating monetary losses versus gains, has recently emerged as a possible neural measure of reward processing. If this view is correct, then the FN should correlate with measures of reward sensitivity in other domains, although few studies have investigated this question. In the current study, 46 participants completed a self-report measure of reward responsiveness, a signal detection task that generated a behavioral measure of reward sensitivity, and a gambling task that elicited an FN. Consistent with the view that the FN reflects reward-related neural activity, a larger FN correlated with increased behavioral and self-report measures of sensitivity to reward.

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