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Dynamics of history-dependent perceptual judgment
Identical physical inputs do not always evoke identical percepts. To investigate the role of stimulus history in tactile perception, we designed a task in which rats had to judge each vibrissal vibration, in a long series, as strong or weak depending on its mean speed. After a low-speed stimulus (tr...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8521591/ https://www.ncbi.nlm.nih.gov/pubmed/34654804 http://dx.doi.org/10.1038/s41467-021-26104-2 |
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author | Hachen, I. Reinartz, S. Brasselet, R. Stroligo, A. Diamond, M. E. |
author_facet | Hachen, I. Reinartz, S. Brasselet, R. Stroligo, A. Diamond, M. E. |
author_sort | Hachen, I. |
collection | PubMed |
description | Identical physical inputs do not always evoke identical percepts. To investigate the role of stimulus history in tactile perception, we designed a task in which rats had to judge each vibrissal vibration, in a long series, as strong or weak depending on its mean speed. After a low-speed stimulus (trial n − 1), rats were more likely to report the next stimulus (trial n) as strong, and after a high-speed stimulus, they were more likely to report the next stimulus as weak, a repulsive effect that did not depend on choice or reward on trial n − 1. This effect could be tracked over several preceding trials (i.e., n − 2 and earlier) and was characterized by an exponential decay function, reflecting a trial-by-trial incorporation of sensory history. Surprisingly, the influence of trial n − 1 strengthened as the time interval between n − 1 and n grew. Human subjects receiving fingertip vibrations showed these same key findings. We are able to account for the repulsive stimulus history effect, and its detailed time scale, through a single-parameter model, wherein each new stimulus gradually updates the subject’s decision criterion. This model points to mechanisms underlying how the past affects the ongoing subjective experience. |
format | Online Article Text |
id | pubmed-8521591 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-85215912021-10-29 Dynamics of history-dependent perceptual judgment Hachen, I. Reinartz, S. Brasselet, R. Stroligo, A. Diamond, M. E. Nat Commun Article Identical physical inputs do not always evoke identical percepts. To investigate the role of stimulus history in tactile perception, we designed a task in which rats had to judge each vibrissal vibration, in a long series, as strong or weak depending on its mean speed. After a low-speed stimulus (trial n − 1), rats were more likely to report the next stimulus (trial n) as strong, and after a high-speed stimulus, they were more likely to report the next stimulus as weak, a repulsive effect that did not depend on choice or reward on trial n − 1. This effect could be tracked over several preceding trials (i.e., n − 2 and earlier) and was characterized by an exponential decay function, reflecting a trial-by-trial incorporation of sensory history. Surprisingly, the influence of trial n − 1 strengthened as the time interval between n − 1 and n grew. Human subjects receiving fingertip vibrations showed these same key findings. We are able to account for the repulsive stimulus history effect, and its detailed time scale, through a single-parameter model, wherein each new stimulus gradually updates the subject’s decision criterion. This model points to mechanisms underlying how the past affects the ongoing subjective experience. Nature Publishing Group UK 2021-10-15 /pmc/articles/PMC8521591/ /pubmed/34654804 http://dx.doi.org/10.1038/s41467-021-26104-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Hachen, I. Reinartz, S. Brasselet, R. Stroligo, A. Diamond, M. E. Dynamics of history-dependent perceptual judgment |
title | Dynamics of history-dependent perceptual judgment |
title_full | Dynamics of history-dependent perceptual judgment |
title_fullStr | Dynamics of history-dependent perceptual judgment |
title_full_unstemmed | Dynamics of history-dependent perceptual judgment |
title_short | Dynamics of history-dependent perceptual judgment |
title_sort | dynamics of history-dependent perceptual judgment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8521591/ https://www.ncbi.nlm.nih.gov/pubmed/34654804 http://dx.doi.org/10.1038/s41467-021-26104-2 |
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