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Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence.
Soc Cogn Affect Neurosci. 2016 Feb; 11(2):191-203.SC

Abstract

We investigated the effect of reward expectation on the processing of emotional words in two experiments using event-related potentials (ERPs). A cue indicating the reward condition of each trial (incentive vs non-incentive) was followed by the presentation of a negative or neutral word, the target. Participants were asked to discriminate the emotional content of the target word in Experiment 1 and to discriminate the color of the target word in Experiment 2, rendering the emotionality of the target word task-relevant in Experiment 1, but task-irrelevant in Experiment 2. The negative bias effect, in terms of the amplitude difference between ERPs for negative and neutral targets, was modulated by the task-set. In Experiment 1, P31 and early posterior negativity revealed a larger negative bias effect in the incentive condition than that in the non-incentive condition. However, in Experiment 2, P31 revealed a diminished negative bias effect in the incentive condition compared with that in the non-incentive condition. These results indicate that reward expectation improves top-down attentional concentration to task-relevant information, with enhanced sensitivity to the emotional content of target words when emotionality is task-relevant, but with reduced differential brain responses to emotional words when their content is task-irrelevant.

Authors+Show Affiliations

Beijing Key Laboratory of Learning and Cognition and Department of Psychology, Capital Normal University, Beijing 100048, China, aweiping@gmail.com.Beijing Key Laboratory of Learning and Cognition and Department of Psychology, Capital Normal University, Beijing 100048, China, Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China, and University of Chinese Academy of Sciences, Beijing 100039, China.Beijing Key Laboratory of Learning and Cognition and Department of Psychology, Capital Normal University, Beijing 100048, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26245838

Citation

Wei, Ping, et al. "Reward Expectation Regulates Brain Responses to Task-relevant and Task-irrelevant Emotional Words: ERP Evidence." Social Cognitive and Affective Neuroscience, vol. 11, no. 2, 2016, pp. 191-203.
Wei P, Wang D, Ji L. Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence. Soc Cogn Affect Neurosci. 2016;11(2):191-203.
Wei, P., Wang, D., & Ji, L. (2016). Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence. Social Cognitive and Affective Neuroscience, 11(2), 191-203. https://doi.org/10.1093/scan/nsv097
Wei P, Wang D, Ji L. Reward Expectation Regulates Brain Responses to Task-relevant and Task-irrelevant Emotional Words: ERP Evidence. Soc Cogn Affect Neurosci. 2016;11(2):191-203. PubMed PMID: 26245838.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence. AU - Wei,Ping, AU - Wang,Di, AU - Ji,Liyan, Y1 - 2015/08/04/ PY - 2014/06/30/received PY - 2015/07/30/accepted PY - 2015/8/7/entrez PY - 2015/8/8/pubmed PY - 2016/9/30/medline KW - reward expectation; emotional Stroop; negative bias; event-related potential SP - 191 EP - 203 JF - Social cognitive and affective neuroscience JO - Soc Cogn Affect Neurosci VL - 11 IS - 2 N2 - We investigated the effect of reward expectation on the processing of emotional words in two experiments using event-related potentials (ERPs). A cue indicating the reward condition of each trial (incentive vs non-incentive) was followed by the presentation of a negative or neutral word, the target. Participants were asked to discriminate the emotional content of the target word in Experiment 1 and to discriminate the color of the target word in Experiment 2, rendering the emotionality of the target word task-relevant in Experiment 1, but task-irrelevant in Experiment 2. The negative bias effect, in terms of the amplitude difference between ERPs for negative and neutral targets, was modulated by the task-set. In Experiment 1, P31 and early posterior negativity revealed a larger negative bias effect in the incentive condition than that in the non-incentive condition. However, in Experiment 2, P31 revealed a diminished negative bias effect in the incentive condition compared with that in the non-incentive condition. These results indicate that reward expectation improves top-down attentional concentration to task-relevant information, with enhanced sensitivity to the emotional content of target words when emotionality is task-relevant, but with reduced differential brain responses to emotional words when their content is task-irrelevant. SN - 1749-5024 UR - https://www.unboundmedicine.com/medline/citation/26245838/Reward_expectation_regulates_brain_responses_to_task_relevant_and_task_irrelevant_emotional_words:_ERP_evidence_ L2 - https://academic.oup.com/scan/article-lookup/doi/10.1093/scan/nsv097 DB - PRIME DP - Unbound Medicine ER -