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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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0083454&type=printable |
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| author | Nicholas D Wright Mkael Symmonds Laurel S Morris Raymond J Dolan |
| author_facet | Nicholas D Wright Mkael Symmonds Laurel S Morris Raymond J Dolan |
| author_sort | Nicholas D Wright |
| collection | DOAJ |
| 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 | Article |
| id | doaj-art-d5b7e062d2284a348df31c10f40fc677 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-d5b7e062d2284a348df31c10f40fc6772025-08-20T03:10:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8345410.1371/journal.pone.0083454Dissociable influences of skewness and valence on economic choice and neural activity.Nicholas D WrightMkael SymmondsLaurel S MorrisRaymond J DolanAsymmetry 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.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0083454&type=printable |
| spellingShingle | Nicholas D Wright Mkael Symmonds Laurel S Morris Raymond J Dolan Dissociable influences of skewness and valence on economic choice and neural activity. PLoS ONE |
| 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 |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0083454&type=printable |
| work_keys_str_mv | AT nicholasdwright dissociableinfluencesofskewnessandvalenceoneconomicchoiceandneuralactivity AT mkaelsymmonds dissociableinfluencesofskewnessandvalenceoneconomicchoiceandneuralactivity AT laurelsmorris dissociableinfluencesofskewnessandvalenceoneconomicchoiceandneuralactivity AT raymondjdolan dissociableinfluencesofskewnessandvalenceoneconomicchoiceandneuralactivity |