title: Time-frequency theta and delta measures index separable components of feedback processing in a gambling task.
abstract: 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 (3-7 Hz) and delta (0-3 Hz) 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.
authors.affiliation: Department of Psychology, University of Maryland-College Park, College Park, Maryland, USA.
authors.forename: Edward M
authors.initials: EM
authors.lastname: Bernat
authors.forename: Lindsay D
authors.initials: LD
authors.lastname: Nelson
authors.forename: Arielle R
authors.initials: AR
authors.lastname: Baskin-Sommers
mesh_terms: D000293:Adolescent; D000328:Adult; D003700:Delta Rhythm / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology*; D005260:Female; D005715:Gambling; D006801:Humans; D008297:Male; D012201:Reward; D013826:Theta Rhythm / Q000502:physiology*; D055815:Young Adult
keywords: Delta; ERP; Event-related potential; FN; Feedback negativity; Gambling; P300; Theta; Time-frequency analysis