A common mechanism underlies changes of mind about decisions and confidence
Decisions are accompanied by a degree of confidence that a selected option is correct. A sequential sampling framework explains the speed and accuracy of decisions and extends naturally to the confidence that the decision rendered is likely to be correct. However, discrepancies between confidence an...
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doaj-e7b8f780f7014b849812e4ee5410f8f62021-05-05T00:14:33ZengeLife Sciences Publications LtdeLife2050-084X2016-02-01510.7554/eLife.12192A common mechanism underlies changes of mind about decisions and confidenceRonald van den Berg0https://orcid.org/0000-0001-7353-5960Kavitha Anandalingam1Ariel Zylberberg2Roozbeh Kiani3Michael N Shadlen4https://orcid.org/0000-0002-2002-2210Daniel M Wolpert5https://orcid.org/0000-0003-2011-2790Computational and Biological Learning Laboratory, Department of Engineering, Cambridge University, Cambridge, United KingdomComputational and Biological Learning Laboratory, Department of Engineering, Cambridge University, Cambridge, United KingdomKavli Institute, Columbia University, New York, United States; Howard Hughes Medical Institute, Columbia University, New York, United States; Department of Neuroscience, Zuckerman Mind Brain Behavior Institute, Columbia University, New York, United StatesCenter for Neural Science, New York University, New York, United StatesKavli Institute, Columbia University, New York, United States; Howard Hughes Medical Institute, Columbia University, New York, United States; Department of Neuroscience, Zuckerman Mind Brain Behavior Institute, Columbia University, New York, United StatesComputational and Biological Learning Laboratory, Department of Engineering, Cambridge University, Cambridge, United KingdomDecisions are accompanied by a degree of confidence that a selected option is correct. A sequential sampling framework explains the speed and accuracy of decisions and extends naturally to the confidence that the decision rendered is likely to be correct. However, discrepancies between confidence and accuracy suggest that confidence might be supported by mechanisms dissociated from the decision process. Here we show that this discrepancy can arise naturally because of simple processing delays. When participants were asked to report choice and confidence simultaneously, their confidence, reaction time and a perceptual decision about motion were explained by bounded evidence accumulation. However, we also observed revisions of the initial choice and/or confidence. These changes of mind were explained by a continuation of the mechanism that led to the initial choice. Our findings extend the sequential sampling framework to vacillation about confidence and invites caution in interpreting dissociations between confidence and accuracy.https://elifesciences.org/articles/12192decision makingmotor controlcomputational neuroscience |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ronald van den Berg Kavitha Anandalingam Ariel Zylberberg Roozbeh Kiani Michael N Shadlen Daniel M Wolpert |
spellingShingle |
Ronald van den Berg Kavitha Anandalingam Ariel Zylberberg Roozbeh Kiani Michael N Shadlen Daniel M Wolpert A common mechanism underlies changes of mind about decisions and confidence eLife decision making motor control computational neuroscience |
author_facet |
Ronald van den Berg Kavitha Anandalingam Ariel Zylberberg Roozbeh Kiani Michael N Shadlen Daniel M Wolpert |
author_sort |
Ronald van den Berg |
title |
A common mechanism underlies changes of mind about decisions and confidence |
title_short |
A common mechanism underlies changes of mind about decisions and confidence |
title_full |
A common mechanism underlies changes of mind about decisions and confidence |
title_fullStr |
A common mechanism underlies changes of mind about decisions and confidence |
title_full_unstemmed |
A common mechanism underlies changes of mind about decisions and confidence |
title_sort |
common mechanism underlies changes of mind about decisions and confidence |
publisher |
eLife Sciences Publications Ltd |
series |
eLife |
issn |
2050-084X |
publishDate |
2016-02-01 |
description |
Decisions are accompanied by a degree of confidence that a selected option is correct. A sequential sampling framework explains the speed and accuracy of decisions and extends naturally to the confidence that the decision rendered is likely to be correct. However, discrepancies between confidence and accuracy suggest that confidence might be supported by mechanisms dissociated from the decision process. Here we show that this discrepancy can arise naturally because of simple processing delays. When participants were asked to report choice and confidence simultaneously, their confidence, reaction time and a perceptual decision about motion were explained by bounded evidence accumulation. However, we also observed revisions of the initial choice and/or confidence. These changes of mind were explained by a continuation of the mechanism that led to the initial choice. Our findings extend the sequential sampling framework to vacillation about confidence and invites caution in interpreting dissociations between confidence and accuracy. |
topic |
decision making motor control computational neuroscience |
url |
https://elifesciences.org/articles/12192 |
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