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Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity

Asymmetry in distributions of potential outcomes (i.e. skewness), and whether those potential outcomes reflect gains or losses (i.e. their valence), both exert a powerful influence on value-based choice. How valence affects the impact of skewness on choice is unknown. Here by orthogonally manipulati...

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Detalles Bibliográficos
Autores principales: Wright, Nicholas D., Symmonds, Mkael, Morris, Laurel S., Dolan, Raymond J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3869791/
https://www.ncbi.nlm.nih.gov/pubmed/24376705
http://dx.doi.org/10.1371/journal.pone.0083454
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author Wright, Nicholas D.
Symmonds, Mkael
Morris, Laurel S.
Dolan, Raymond J.
author_facet Wright, Nicholas D.
Symmonds, Mkael
Morris, Laurel S.
Dolan, Raymond J.
author_sort Wright, Nicholas D.
collection PubMed
description Asymmetry in distributions of potential outcomes (i.e. skewness), and whether those potential outcomes reflect gains or losses (i.e. their valence), both exert a powerful influence on value-based choice. How valence affects the impact of skewness on choice is unknown. Here by orthogonally manipulating the skewness and valence of economic stimuli we show that both have an influence on choice. We show that the influence of skewness on choice is independent of valence, both across and within subjects. fMRI data revealed skew-related activity in bilateral anterior insula and dorsomedial prefrontal cortex, which shows no interaction with valence. Further, the expression of skew-related activity depends on an individual’s preference for skewness, and this was again independent of valence-related preference. Our findings highlight the importance of skewness in choice and show that its influence, both behaviourally and neurally, is distinct from an influence of valence.
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spelling pubmed-38697912013-12-27 Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity Wright, Nicholas D. Symmonds, Mkael Morris, Laurel S. Dolan, Raymond J. PLoS One Research Article Asymmetry in distributions of potential outcomes (i.e. skewness), and whether those potential outcomes reflect gains or losses (i.e. their valence), both exert a powerful influence on value-based choice. How valence affects the impact of skewness on choice is unknown. Here by orthogonally manipulating the skewness and valence of economic stimuli we show that both have an influence on choice. We show that the influence of skewness on choice is independent of valence, both across and within subjects. fMRI data revealed skew-related activity in bilateral anterior insula and dorsomedial prefrontal cortex, which shows no interaction with valence. Further, the expression of skew-related activity depends on an individual’s preference for skewness, and this was again independent of valence-related preference. Our findings highlight the importance of skewness in choice and show that its influence, both behaviourally and neurally, is distinct from an influence of valence. Public Library of Science 2013-12-20 /pmc/articles/PMC3869791/ /pubmed/24376705 http://dx.doi.org/10.1371/journal.pone.0083454 Text en © 2013 Wright et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Wright, Nicholas D.
Symmonds, Mkael
Morris, Laurel S.
Dolan, Raymond J.
Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title_full Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title_fullStr Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title_full_unstemmed Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title_short Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity
title_sort dissociable influences of skewness and valence on economic choice and neural activity
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3869791/
https://www.ncbi.nlm.nih.gov/pubmed/24376705
http://dx.doi.org/10.1371/journal.pone.0083454
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