Time-frequency theta and delta measures index separable components of feedback processing in a gambling task. Psychophysiology 2015 May;52(5):626-37
Date
01/13/2015Pubmed ID
25581491Pubmed Central ID
PMC4398588DOI
10.1111/psyp.12390Scopus ID
2-s2.0-84927691423 (requires institutional sign-in at Scopus site) 94 CitationsAbstract
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.
Author List
Bernat EM, Nelson LD, Baskin-Sommers ARAuthor
Lindsay D. Nelson PhD Associate Professor in the Neurosurgery department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Delta Rhythm
Evoked Potentials
Feedback, Psychological
Female
Gambling
Humans
Male
Reward
Theta Rhythm
Young Adult