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ERP correlates of valence asymmetry during incentive anticipation
Author(s) -
Li Qi,
Xu Jing,
Chen Weiran,
Mu Zhen,
An Tong,
Zheng Ya
Publication year - 2018
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/psyp.13213
Subject(s) - valence (chemistry) , psychology , negativity effect , anticipation (artificial intelligence) , stimulus (psychology) , asymmetry , incentive , audiology , event related potential , cognitive psychology , neuroscience , cognition , chemistry , medicine , physics , organic chemistry , quantum mechanics , artificial intelligence , computer science , economics , microeconomics
The stimulus‐preceding negativity (SPN) is a reliable index of incentive anticipation. However, it remains controversial whether the anticipatory process indexed by the SPN is modulated by incentive valence. The present study investigated the effect of valence on the SPN in a gambling task that required participants to make a binary (gain vs. loss) prediction after their choice on trials with different reward probabilities. Behaviorally, the participants exhibited a positive bias in their prediction. Electrophysiologically, a valence asymmetry was observed for the SPN. Specifically, the SPN was more pronounced when the participants made a gain relative to loss prediction, which was specific over the left hemisphere. Moreover, the SPN showed an uncertainty effect with enhanced amplitudes before uncertain versus certain outcomes, which tended to be pronounced during gain compared to loss anticipation. These findings indicated that the SPN is more sensitive to positive relative to negative valence, which may be mediated by the mesocorticolimbic dopaminergic pathway.© 2018 Society for Psychophysiological Research