Time-frequency theta and delta measures index separable components of feedback processing in a gambling task.

Time-frequency theta and delta measures index separable components of feedback processing in a gambling task.
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DOI:
10.1111/psyp.12390
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发表时间:
2015-05
期刊:
影响因子:
3.7
通讯作者:
Baskin-Sommers AR
Baskin-Sommers AR
中科院分区:
心理学3区
文献类型:
--
作者:
Bernat EM;Nelson LD;Baskin-Sommers AR

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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 (3–7 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.
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