Izuma, Keise orcid.org/0000-0003-0256-3571, Shibata, Kazuhisa, Matsumoto, Kenji et al. (1 more author) (2017) Neural predictors of evaluative attitudes towards celebrities. Social Cognitive and Affective Neuroscience. pp. 382-390. ISSN 1749-5024
Abstract
Our attitudes towards others influence a wide range of everyday behaviors, and have been the most extensively studied concept in the history of social psychology. Yet they remain difficult to measure reliably and objectively, since both explicit and implicit measures are typically confounded by other psychological processes. We here address the feasibility of decoding incidental attitudes based on brain activations. Participants were presented with pictures of members of a Japanese idol group inside an fMRI scanner while performing an unrelated detection task, and subsequently (outside the scanner) performed an incentive-compatible choice task that revealed their attitude toward each celebrity. We used a real-world election scheme that exists for this idol group, which confirmed both strongly negative and strongly positive attitudes towards specific individuals. Whole-brain multivariate analyses (searchlight-based support vector regression) showed that activation patterns in the anterior striatum predicted each participant’s revealed attitudes (choice behavior) using leave-one-out (as well as 4-fold) cross-validation across participants. By contrast, attitude extremity (unsigned magnitude) could be decoded from a distinct region in the posterior striatum. The findings demonstrate dissociable striatal representations of valenced attitude and attitude extremity, and constitute a first step toward an objective and process-pure neural measure of attitudes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. Embargo period : 12 months |
Keywords: | attitude,attitude extremity,preference,fMRI,MVPA,striatum |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Psychology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 05 Oct 2016 08:39 |
Last Modified: | 22 Dec 2024 00:11 |
Published Version: | https://doi.org/10.1093/scan/nsw135 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1093/scan/nsw135 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:105595 |