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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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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. |
format | Online Article Text |
id | pubmed-3869791 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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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