Journal
PSYCHOPHYSIOLOGY
Volume 52, Issue 5, Pages 626-637Publisher
WILEY
DOI: 10.1111/psyp.12390
Keywords
Time-frequency analysis; Theta; Delta; Feedback negativity; FN; P300; Gambling; Event-related potential; ERP
Funding
- National Institute of Mental Health [MH080239, MH65137, MH088143]
- Hathaway endowment at the University of Minnesota-Twin Cities
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Previous work using gambling tasks indicate that the feedback negativity (FN) reflects primary or salient stimulus attributes (often gain vs. loss), whereas the feedback-P300 appears sensitive to secondary stimulus information. A recent time-frequency approach has characterized separable theta (3-7Hz) and delta (0-3Hz) feedback processes, independently sensitive to primary feedback attributes, specifically loss and gain outcomes, respectively. The current study extends this time-frequency work to evaluate both primary and secondary (relative outcome and outcome magnitude) feedback attributes. Consistent with previous reports, theta indexed an initial, lower-level response sensitive to the primary (most salient) feedback attributes (specifically losses), while delta was sensitive to both primary attributes (specifically gains) and assessed secondary stimulus features.
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