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  The relationship between perceptual decision variables and confidence in the human brain

Hebart, M. N., Schriever, Y., Donner, T. H., & Haynes, J.-D. (2016). The relationship between perceptual decision variables and confidence in the human brain. Cerebral Cortex, 26(1), 118-130. doi:10.1093/cercor/bhu181.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-22AC-B Version Permalink: http://hdl.handle.net/21.11116/0000-0005-38FC-1
Genre: Journal Article

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 Creators:
Hebart, Martin N.1, 2, 3, 4, Author              
Schriever, Yoren5, Author
Donner, Tobias H.1, 6, 7, Author
Haynes, John-Dylan1, 2, 3, 8, Author              
Affiliations:
1Bernstein Center for Computational Neuroscience, Berlin, Germany, ou_persistent22              
2Berlin Center for Advanced Neuroimaging (BCAN), Charité University Medicine Berlin, Germany, ou_persistent22              
3Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              
4Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Germany, ou_persistent22              
5Department of Psychology, Utrecht University, the Netherlands, ou_persistent22              
6Department of Psychology, University of Amsterdam, the Netherlands, ou_persistent22              
7Cognitive Science Center Amsterdam, University of Amsterdam, the Netherlands, ou_persistent22              
8MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634548              

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Free keywords: Confidence; Decision-making; fMRI; Multivariate pattern analysis; Signal detection theory
 Abstract: Perceptual confidence refers to the degree to which we believe in the accuracy of our percepts. Signal detection theory suggests that perceptual confidence is computed from an internal “decision variable,” which reflects the amount of available information in favor of one or another perceptual interpretation of the sensory input. The neural processes underlying these computations have, however, remained elusive. Here, we used fMRI and multivariate decoding techniques to identify regions of the human brain that encode this decision variable and confidence during a visual motion discrimination task. We used observers' binary perceptual choices and confidence ratings to reconstruct the internal decision variable that governed the subjects' behavior. A number of areas in prefrontal and posterior parietal association cortex encoded this decision variable, and activity in the ventral striatum reflected the degree of perceptual confidence. Using a multivariate connectivity analysis, we demonstrate that patterns of brain activity in the right ventrolateral prefrontal cortex reflecting the decision variable were linked to brain signals in the ventral striatum reflecting confidence. Our results suggest that the representation of perceptual confidence in the ventral striatum is derived from a transformation of the continuous decision variable encoded in the cerebral cortex.

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Language(s): eng - English
 Dates: 2014-08-112016-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1093/cercor/bhu181
PMID: 25112281
Other: Epub 2014
 Degree: -

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Title: Cerebral Cortex
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: New York, NY : Oxford University Press
Pages: - Volume / Issue: 26 (1) Sequence Number: - Start / End Page: 118 - 130 Identifier: ISSN: 1047-3211
CoNE: https://pure.mpg.de/cone/journals/resource/954925592440