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  Similar neural mechanisms for perceptual guesses and free decisions

Bode, S., Bogler, C., & Haynes, J.-D. (2013). Similar neural mechanisms for perceptual guesses and free decisions. NeuroImage, 65, 456-465. doi:10.1016/j.neuroimage.2012.09.064.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-E297-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-8401-6
Genre: Journal Article

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 Creators:
Bode, Stefan1, 2, 3, Author              
Bogler, Carsten1, 4, Author              
Haynes, John-Dylan1, 3, 4, 5, 6, Author              
Affiliations:
1Max Planck Fellow Research Group Attention and Awareness, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634553              
2Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, VIC, 3010, Australia, ou_persistent22              
3Department of Neurology, Otto-von-Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany, ou_persistent22              
4Bernstein Center for Computational Neuroscience Berlin and Charité-Universitätsmedizin Berlin, Haus 6, Philippstrasse 13, 10115 Berlin, Germany, ou_persistent22              
5Graduate Graduate School of Mind and Brain, Humboldt Universität zu Berlin, Luisenstrasse 56, Haus 1, 10099 Berlin, Germany, ou_persistent22              
6Berlin Center for Advanced Neuroimaging, Charité-Universitätsmedizin Berlin, Haus 6, Philippstrasse 13, 10115 Berlin, Germany, ou_persistent22              

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Free keywords: Free decisions; Guessing; Precuneus; Functional MRI; Multivariate pattern classification
 Abstract: When facing perceptual choices under challenging conditions we might believe to be purely guessing. But which brain regions determine the outcome of our guesses? One possibility is that higher-level, domain-general brain regions might help break the symmetry between equal-appearing choices. Here we directly investigated whether perceptual guesses share brain networks with other types of free decisions. We trained an fMRI-based pattern classifier to distinguish between two perceptual guesses and tested whether it was able to predict the outcome of similar non-perceptual choices, as in conventional free choice tasks. Activation patterns in the medial posterior parietal cortex cross-predicted free decisions from perceptual guesses and vice versa. This inter-changeability strongly speaks for a similar neural code for both types of decisions. The posterior parietal cortex might be part of a domain-general system that helps resolve decision conflicts when no choice option is more or less likely or valuable, thus preventing behavioural stalemate.

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Language(s): eng - English
 Dates: 2012-09-232012-10-032013-01-15
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.neuroimage.2012.09.064
PMID: 23041528
Other: Epub 2012
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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 65 Sequence Number: - Start / End Page: 456 - 465 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166