PSYCH OpenIR  > 中国科学院行为科学重点实验室
Is Payoff Necessarily Weighted by Probability When Making a Risky Choice? Evidence from Functional Connectivity Analysis
Rao, Li-Lin1; Li, Shu1; Jiang, Tianzi2,3,4; Zhou, Yuan1; Rao, LL (reprint author), Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China.
2012-07-17
Source PublicationPLOS ONE
ISSN1932-6203
SubtypeArticle
Volume7Issue:7Pages:e41048
Contribution Rank1
AbstractHow people make decisions under risk remains an as-yet-unresolved but fundamental question. Mainstream theories about risky decision making assume that the core processes involved in reaching a risky decision include weighting each payoff or reward magnitude by its probability and then summing the outcomes. However, recently developed theories question whether payoffs are necessarily weighted by probability when making a risky choice. Using functional connectivity analysis, we aimed to provide neural evidence to answer whether this key assumption of computing expectations holds when making a risky choice. We contrasted a trade-off instruction choice that required participants to integrate probability and payoff information with a preferential choice that did not. Based on the functional connectivity patterns between regions in which activity was detected during both of the decision-making tasks, we classified the regions into two networks. One network includes primarily the left and right lateral prefrontal cortices and posterior parietal cortices, which were found to be related to probability in previous reports, and the other network is composed of the bilateral basal ganglia, which have been implicated in payoff. We also found that connectivity between the payoff network and some regions in the probability network (including the left lateral prefrontal cortices and bilateral inferior parietal lobes) were stronger during the trade-off instruction choice task than during the preferential choice task. This indicates that the functional integration between the probability and payoff networks during preferential choice was not as strong as the integration during trade-off instruction choice. Our results provide neural evidence that the weighting process uniformly predicted by the mainstream theory is unnecessary during preferential choice. Thus, our functional integration findings can provide a new direction for the investigation of the principles of risky decision making.
Subject AreaPsychology Research Method
URL查看原文
Indexed BySCI
Language英语
Funding OrganizationNational Basic Research Program of China (973 Program) [2011CB711000] ; National Natural Science Foundation of China [31170976] ; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-EW-J-8] ; Project for Young Scientists Fund, Institute of Psychology, Chinese Academy of Sciences [Y0CX163S01]
Project Intro.This research was partially supported by the National Basic Research Program of China (973 Program, No. 2011CB711000), National Natural Science Foundation of China (No. 31170976), the Knowledge Innovation Program of the Chinese Academy of Sciences (KSCX2-EW-J-8), and Project for Young Scientists Fund, Institute of Psychology, Chinese Academy of Sciences (Y0CX163S01). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. No additional external funding received for this study.
WOS IDWOS:000306507000056
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/11876
Collection中国科学院行为科学重点实验室
Corresponding AuthorRao, LL (reprint author), Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China
2.Chinese Acad Sci, LIAMA Ctr Computat Med, Natl Lab Pattern Recognit, Inst Automat, Beijing, Peoples R China
3.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Key Lab NeuroInformat, Minist Educ, Chengdu 610054, Peoples R China
4.Univ Queensland, Queensland Brain Inst, Brisbane, Qld, Australia
Recommended Citation
GB/T 7714
Rao, Li-Lin,Li, Shu,Jiang, Tianzi,et al. Is Payoff Necessarily Weighted by Probability When Making a Risky Choice? Evidence from Functional Connectivity Analysis[J]. PLOS ONE,2012,7(7):e41048.
APA Rao, Li-Lin,Li, Shu,Jiang, Tianzi,Zhou, Yuan,&Rao, LL .(2012).Is Payoff Necessarily Weighted by Probability When Making a Risky Choice? Evidence from Functional Connectivity Analysis.PLOS ONE,7(7),e41048.
MLA Rao, Li-Lin,et al."Is Payoff Necessarily Weighted by Probability When Making a Risky Choice? Evidence from Functional Connectivity Analysis".PLOS ONE 7.7(2012):e41048.
Files in This Item:
File Name/Size DocType Version Access License
WOS_000306507000056.(625KB)期刊论文出版稿限制开放CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Rao, Li-Lin]'s Articles
[Li, Shu]'s Articles
[Jiang, Tianzi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Rao, Li-Lin]'s Articles
[Li, Shu]'s Articles
[Jiang, Tianzi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Rao, Li-Lin]'s Articles
[Li, Shu]'s Articles
[Jiang, Tianzi]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: WOS_000306507000056.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.