It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks.

It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks. Research Abstract Details 

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It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks. Abstract Text:

Greg Hajcak,Jason S Moser,Clay B Holroyd,Robert F Simons,Greg Hajcak,Jason S Moser,Clay B Holroyd,Robert F Simons,

The reinforcement learning theory suggests that the feedback negativity should be larger when feedback is unexpected. Two recent studies found, however, that the feedback negativity was unaffected by outcome probability. To further examine this issue, participants in the present studies made reward predictions on each trial of a gambling task where objective reward probability was indicated by a cue. In Study 1, participants made reward predictions following the cue, but prior to their gambling choice; in Study 2, predictions were made following their gambling choice. Predicted and unpredicted outcomes were associated with equivalent feedback negativities in Study 1. In Study 2, however, the feedback negativity was larger for unpredicted outcomes. These data suggest that the magnitude of the feedback negativity is sensitive to violations of reward prediction, but that this effect may depend on the close coupling of prediction and outcome.

It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks. Publishing Authors By Initials

G Hajcak,JS Moser,CB Holroyd,RF Simons,G Hajcak,JS Moser,CB Holroyd,RF Simons,

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It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Psychophysiology

VOLUME: 44

Page Numbers: 905-12

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ISSN: 0048-5772

DAY: 30

MONTH: 07

YEAR: 2007

It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks. Information

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LANGUAGE: eng

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Grant and Affiliation Information for It's worse than you thought: the feedback negativity and violations of reward prediction in gambling tasks.

AFFILIATION: Department of Psychology, Stony Brook University, Stony Brook, NY 11794-9500, USA. greg.hajcak@stonybrook.edu

Country: United States

AGENCY: United States NIMH

GRANT: MH069047

ACRONYM: MH

MEDLINETA: Psychophysiology

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