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Reaction times can reflect habits rather than computations
Reaction times (RTs) are assumed to reflect the underlying computations required for making decisions and preparing actions. Recent work, however, has shown that movements can be initiated earlier than typically expressed without affecting performance; hence, the RT may be modulated by factors other...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5582865/ https://www.ncbi.nlm.nih.gov/pubmed/28753125 http://dx.doi.org/10.7554/eLife.28075 |
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author | Wong, Aaron L Goldsmith, Jeff Forrence, Alexander D Haith, Adrian M Krakauer, John W |
author_facet | Wong, Aaron L Goldsmith, Jeff Forrence, Alexander D Haith, Adrian M Krakauer, John W |
author_sort | Wong, Aaron L |
collection | PubMed |
description | Reaction times (RTs) are assumed to reflect the underlying computations required for making decisions and preparing actions. Recent work, however, has shown that movements can be initiated earlier than typically expressed without affecting performance; hence, the RT may be modulated by factors other than computation time. Consistent with that view, we demonstrated that RTs are influenced by prior experience: when a previously performed task required a specific RT to support task success, this biased the RTs in future tasks. This effect is similar to the use-dependent biases observed for other movement parameters such as speed or direction. Moreover, kinematic analyses revealed that these RT biases could occur without changing the underlying computations used to perform the action. Thus the RT is not solely determined by computational requirements but is an independent parameter that can be habitually set by prior experience. |
format | Online Article Text |
id | pubmed-5582865 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-55828652017-09-06 Reaction times can reflect habits rather than computations Wong, Aaron L Goldsmith, Jeff Forrence, Alexander D Haith, Adrian M Krakauer, John W eLife Neuroscience Reaction times (RTs) are assumed to reflect the underlying computations required for making decisions and preparing actions. Recent work, however, has shown that movements can be initiated earlier than typically expressed without affecting performance; hence, the RT may be modulated by factors other than computation time. Consistent with that view, we demonstrated that RTs are influenced by prior experience: when a previously performed task required a specific RT to support task success, this biased the RTs in future tasks. This effect is similar to the use-dependent biases observed for other movement parameters such as speed or direction. Moreover, kinematic analyses revealed that these RT biases could occur without changing the underlying computations used to perform the action. Thus the RT is not solely determined by computational requirements but is an independent parameter that can be habitually set by prior experience. eLife Sciences Publications, Ltd 2017-07-28 /pmc/articles/PMC5582865/ /pubmed/28753125 http://dx.doi.org/10.7554/eLife.28075 Text en © 2017, Wong et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Wong, Aaron L Goldsmith, Jeff Forrence, Alexander D Haith, Adrian M Krakauer, John W Reaction times can reflect habits rather than computations |
title | Reaction times can reflect habits rather than computations |
title_full | Reaction times can reflect habits rather than computations |
title_fullStr | Reaction times can reflect habits rather than computations |
title_full_unstemmed | Reaction times can reflect habits rather than computations |
title_short | Reaction times can reflect habits rather than computations |
title_sort | reaction times can reflect habits rather than computations |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5582865/ https://www.ncbi.nlm.nih.gov/pubmed/28753125 http://dx.doi.org/10.7554/eLife.28075 |
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