Common neural choice signals can emerge artefactually amid multiple distinct value signals.

Autor: Frömer R; Cognitive, Linguistic, and Psychological Sciences, Brown University, Providence, RI, USA. r.froemer@bham.ac.uk.; Carney Institute for Brain Sciences, Brown University, Providence, RI, USA. r.froemer@bham.ac.uk.; School of Psychology, University of Birmingham, Birmingham, UK. r.froemer@bham.ac.uk.; Centre for Human Brain Health, University of Birmingham, Birmingham, UK. r.froemer@bham.ac.uk., Nassar MR; Carney Institute for Brain Sciences, Brown University, Providence, RI, USA.; Department of Neuroscience, Brown University, Providence, RI, USA., Ehinger BV; Stuttgart Center for Simulation Science, University of Stuttgart, Stuttgart, Germany., Shenhav A; Cognitive, Linguistic, and Psychological Sciences, Brown University, Providence, RI, USA.; Carney Institute for Brain Sciences, Brown University, Providence, RI, USA.; Department of Psychology, University of California Berkeley, Berkeley, CA, USA.; Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA, USA.
Jazyk: angličtina
Zdroj: Nature human behaviour [Nat Hum Behav] 2024 Nov; Vol. 8 (11), pp. 2194-2208. Date of Electronic Publication: 2024 Sep 06.
DOI: 10.1038/s41562-024-01971-z
Abstrakt: Previous work has identified characteristic neural signatures of value-based decision-making, including neural dynamics that closely resemble the ramping evidence accumulation process believed to underpin choice. Here we test whether these signatures of the choice process can be temporally dissociated from additional, choice-'independent' value signals. Indeed, EEG activity during value-based choice revealed distinct spatiotemporal clusters, with a stimulus-locked cluster reflecting affective reactions to choice sets and a response-locked cluster reflecting choice difficulty. Surprisingly, 'neither' of these clusters met the criteria for an evidence accumulation signal. Instead, we found that stimulus-locked activity can 'mimic' an evidence accumulation process when aligned to the response. Re-analysing four previous studies, including three perceptual decision-making studies, we show that response-locked signatures of evidence accumulation disappear when stimulus-locked and response-locked activity are modelled jointly. Collectively, our findings show that neural signatures of value can reflect choice-independent processes and look deceptively like evidence accumulation.
Competing Interests: Competing interests The authors declare no competing interests.
(© 2024. The Author(s).)
Databáze: MEDLINE
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