| Decision-making based on emotional images. | |
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MedLine Citation:
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PMID: 22059086 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The emotional outcome of a choice affects subsequent decision making. While the relationship between decision making and emotion has attracted attention, studies on emotion and decision making have been independently developed. In this study, we investigated how the emotional valence of pictures, which was stochastically contingent on participants' choices, influenced subsequent decision making. In contrast to traditional value-based decision-making studies that used money or food as a reward, the "reward value" of the decision outcome, which guided the update of value for each choice, is unknown beforehand. To estimate the reward value of emotional pictures from participants' choice data, we used reinforcement learning models that have successfully been used in previous studies for modeling value-based decision making. Consequently, we found that the estimated reward value was asymmetric between positive and negative pictures. The negative reward value of negative pictures (relative to neutral pictures) was larger in magnitude than the positive reward value of positive pictures. This asymmetry was not observed in valence for an individual picture, which was rated by the participants regarding the emotion experienced upon viewing it. These results suggest that there may be a difference between experienced emotion and the effect of the experienced emotion on subsequent behavior. Our experimental and computational paradigm provides a novel way for quantifying how and what aspects of emotional events affect human behavior. The present study is a first step toward relating a large amount of knowledge in emotion science and in taking computational approaches to value-based decision making. |
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Authors:
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Kentaro Katahira; Tomomi Fujimura; Kazuo Okanoya; Masato Okada |
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Publication Detail:
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Type: Journal Article Date: 2011-10-28 |
Journal Detail:
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Title: Frontiers in psychology Volume: 2 ISSN: 1664-1078 ISO Abbreviation: Front Psychol Publication Date: 2011 |
Date Detail:
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Created Date: 2011-11-07 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101550902 Medline TA: Front Psychol Country: Switzerland |
Other Details:
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Languages: eng Pagination: 311 Citation Subset: - |
Affiliation:
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Japan Science Technology Agency, ERATO, Okanoya Emotional Information Project Wako, Saitama, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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