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Disentangling the effects of serotonin on risk perception: S-carriers of 5-HTTLPR are primarily concerned with the magnitude of the outcomes, not the uncertainty.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
2017 (English)In: Behavioral Neuroscience, ISSN 1939-0084Electronic,0735-7044Print, Vol. 131, no 5, 421-427 p.Article in journal (Refereed) Published
Abstract [en]

Serotonin signaling is vital for reward processing, and hence, also for decision-making. The serotonin transporter gene linked polymorphic region (5-HTTLPR) has been connected to decision making, suggesting that short-allele carriers (s) are more risk averse than long-allele homozygotes (ll). However, previous research has not identified if this occurs because s-carriers (i) are more sensitive to the uncertainty of the outcomes or (ii) are more sensitive to the magnitude of the outcomes. This issue was disentangled using a willingness-to-pay task, where the participants evaluated prospects involving certain gains, uncertain gains, and ambiguous gains. The results clearly favored the hypothesis that s-carriers react more to the magnitude of the outcomes. Self-reported measures of everyday risk-taking behavior also favored this hypothesis. We discuss how these results are in line with recent research on the serotonergic impact on reward processing. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

Place, publisher, year, edition, pages
American Psychological Association , 2017. Vol. 131, no 5, 421-427 p.
Keyword [en]
*Cognitive Processes, *Decision Making, *Judgment, *Risk Perception, *Risk Taking, Rewards, Serotonin, Alleles, Neurotransmitter Transporters
National Category
Psychology
Identifiers
URN: urn:nbn:se:uu:diva-333475DOI: 10.1037/bne0000209OAI: oai:DiVA.org:uu-333475DiVA: diva2:1156744
Conference
US
Available from: 2017-11-14 Created: 2017-11-14 Last updated: 2017-11-14

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Millroth, PhilipJuslin, PeterÅgren, Thomas
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