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Overlapping and distinct representations of advantageous and disadvantageous inequality

Yu, Rongjun and Calder, Andrew J. and Mobbs, Dean (2014) Overlapping and distinct representations of advantageous and disadvantageous inequality. Human Brain Mapping, 35 (7). pp. 3290-3301. ISSN 1065-9471. PMCID PMC4216415. doi:10.1002/hbm.22402. https://resolver.caltech.edu/CaltechAUTHORS:20180305-131940423

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Abstract

Advantageous inequality (AI) aversion, or paying at a personal cost to achieve equal reward distribution, represents a unique feature of human behavior. Here, we show that individuals have strong preferences for fairness in both disadvantageous (DI) and advantageous inequality (AI) situations, such that they alter others' payoff at a personal financial cost. At the neural level, we found that both types of inequality activated the putamen, orbitofrontal cortex, and insula, regions implicated in motivation. Individual difference analyses found that those who spent more money to increase others' payoff had stronger activity in putamen when they encountered AI and less functional connectivity between putamen and both orbitofrontal cortex and anterior insula. Conversely, those who spent more money to reduce others' payoff had stronger activity in amygdala in response to DI and less functional connectivity between amygdala and ventral anterior cingulate cortex. These dissociations suggest that both types of inequality are processed by similar brain areas, yet modulated by different neural pathways.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/hbm.22402DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/hbm.22402/fullPublisherArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4216415/PubMed CentralArticle
ORCID:
AuthorORCID
Yu, Rongjun0000-0003-0123-1524
Mobbs, Dean0000-0003-1175-3772
Additional Information:© 2013 Wiley Periodicals, Inc. Received for publication 13 November 2012; Revised 20 August 2013; Accepted 26 August 2013. Published online 25 November 2013 in Wiley Online Library. Contract grant sponsor: United Kingdom Medical Research Council; Contract grant number: MC_US_A060_5PQ50; Contract grant sponsor: Foundation for High-level Talents in Higher Education of Guangdong; Contract grant number: C10454; Contract grant sponsor: Natural Scientific Foundation of China; Contract grant number: 31371128. All authors have no conflict of interest.
Funders:
Funding AgencyGrant Number
Medical Research Council (UK)MC_US_A060_5PQ50
Foundation for High-level Talents in Higher Education of GuangdongC10454
National Natural Science Foundation of China31371128
Subject Keywords:inequality aversion; striatum; insula; amygdala; fMRI
Issue or Number:7
PubMed Central ID:PMC4216415
DOI:10.1002/hbm.22402
Record Number:CaltechAUTHORS:20180305-131940423
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180305-131940423
Official Citation:Yu, R., Calder, A. J. and Mobbs, D. (2014), Overlapping and distinct representations of advantageous and disadvantageous inequality. Hum. Brain Mapp., 35: 3290–3301. doi: 10.1002/hbm.22402
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85100
Collection:CaltechAUTHORS
Deposited By:INVALID USER
Deposited On:05 Mar 2018 22:09
Last Modified:15 Nov 2021 20:25

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