Confidence predicts speed-accuracy tradeoff for subsequent decisions
When external feedback about decision outcomes is lacking, agents need to adapt their decision policies based on an internal estimate of the correctness of their choices (i.e., decision confidence). We hypothesized that agents use confidence to continuously update the tradeoff between the speed and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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eLife Sciences Publications Ltd
2019-08-01
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| Series: | eLife |
| Subjects: | |
| Online Access: | https://elifesciences.org/articles/43499 |
| _version_ | 1811201302835757056 |
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| author | Kobe Desender Annika Boldt Tom Verguts Tobias H Donner |
| author_facet | Kobe Desender Annika Boldt Tom Verguts Tobias H Donner |
| author_sort | Kobe Desender |
| collection | DOAJ |
| description | When external feedback about decision outcomes is lacking, agents need to adapt their decision policies based on an internal estimate of the correctness of their choices (i.e., decision confidence). We hypothesized that agents use confidence to continuously update the tradeoff between the speed and accuracy of their decisions: When confidence is low in one decision, the agent needs more evidence before committing to a choice in the next decision, leading to slower but more accurate decisions. We tested this hypothesis by fitting a bounded accumulation decision model to behavioral data from three different perceptual choice tasks. Decision bounds indeed depended on the reported confidence on the previous trial, independent of objective accuracy. This increase in decision bound was predicted by a centro-parietal EEG component sensitive to confidence. We conclude that internally computed neural signals of confidence predict the ongoing adjustment of decision policies. |
| first_indexed | 2024-04-12T02:18:41Z |
| format | Article |
| id | doaj.art-1de98cc9217944feb5c2f61f00188010 |
| institution | Directory Open Access Journal |
| issn | 2050-084X |
| language | English |
| last_indexed | 2024-04-12T02:18:41Z |
| publishDate | 2019-08-01 |
| publisher | eLife Sciences Publications Ltd |
| record_format | Article |
| series | eLife |
| spelling | doaj.art-1de98cc9217944feb5c2f61f001880102022-12-22T03:52:10ZengeLife Sciences Publications LtdeLife2050-084X2019-08-01810.7554/eLife.43499Confidence predicts speed-accuracy tradeoff for subsequent decisionsKobe Desender0https://orcid.org/0000-0002-5462-4260Annika Boldt1Tom Verguts2Tobias H Donner3https://orcid.org/0000-0002-7559-6019Department of Neurophysiology and Pathophysiology, University Medical Center, Hamburg, Germany; Department of Experimental Psychology, Ghent University, Ghent, BelgiumInstitute of Cognitive Neuroscience, University College London, London, United KingdomDepartment of Experimental Psychology, Ghent University, Ghent, BelgiumDepartment of Neurophysiology and Pathophysiology, University Medical Center, Hamburg, GermanyWhen external feedback about decision outcomes is lacking, agents need to adapt their decision policies based on an internal estimate of the correctness of their choices (i.e., decision confidence). We hypothesized that agents use confidence to continuously update the tradeoff between the speed and accuracy of their decisions: When confidence is low in one decision, the agent needs more evidence before committing to a choice in the next decision, leading to slower but more accurate decisions. We tested this hypothesis by fitting a bounded accumulation decision model to behavioral data from three different perceptual choice tasks. Decision bounds indeed depended on the reported confidence on the previous trial, independent of objective accuracy. This increase in decision bound was predicted by a centro-parietal EEG component sensitive to confidence. We conclude that internally computed neural signals of confidence predict the ongoing adjustment of decision policies.https://elifesciences.org/articles/43499decision makingconfidencedrift diffusion modelingEEGPeERN |
| spellingShingle | Kobe Desender Annika Boldt Tom Verguts Tobias H Donner Confidence predicts speed-accuracy tradeoff for subsequent decisions eLife decision making confidence drift diffusion modeling EEG Pe ERN |
| title | Confidence predicts speed-accuracy tradeoff for subsequent decisions |
| title_full | Confidence predicts speed-accuracy tradeoff for subsequent decisions |
| title_fullStr | Confidence predicts speed-accuracy tradeoff for subsequent decisions |
| title_full_unstemmed | Confidence predicts speed-accuracy tradeoff for subsequent decisions |
| title_short | Confidence predicts speed-accuracy tradeoff for subsequent decisions |
| title_sort | confidence predicts speed accuracy tradeoff for subsequent decisions |
| topic | decision making confidence drift diffusion modeling EEG Pe ERN |
| url | https://elifesciences.org/articles/43499 |
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