Cargando…

Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence

Perceptual decisions often require the integration of noisy sensory evidence over time. This process is formalized with sequential sampling models, where evidence is accumulated up to a decision threshold before a choice is made. Although intuition suggests that decision formation must precede the p...

Descripción completa

Detalles Bibliográficos
Autores principales: Lisi, Matteo, Morgan, Michael J., Solomon, Joshua A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8888581/
https://www.ncbi.nlm.nih.gov/pubmed/35233079
http://dx.doi.org/10.1038/s42003-022-03141-1
_version_ 1784661188270882816
author Lisi, Matteo
Morgan, Michael J.
Solomon, Joshua A.
author_facet Lisi, Matteo
Morgan, Michael J.
Solomon, Joshua A.
author_sort Lisi, Matteo
collection PubMed
description Perceptual decisions often require the integration of noisy sensory evidence over time. This process is formalized with sequential sampling models, where evidence is accumulated up to a decision threshold before a choice is made. Although intuition suggests that decision formation must precede the preparation of a motor response (i.e., the action used to communicate the choice), neurophysiological findings have suggested that these two processes might be one and the same. To test this idea, we developed a reverse-correlation protocol in which the visual stimuli that influence decisions can be distinguished from those guiding motor responses. In three experiments, we found that the temporal weighting function of oculomotor responses did not overlap with the relatively early weighting function of stimulus properties having an impact on decision formation. These results support a timeline in which perceptual decisions are formed, at least in part, prior to the preparation of a motor response.
format Online
Article
Text
id pubmed-8888581
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-88885812022-03-17 Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence Lisi, Matteo Morgan, Michael J. Solomon, Joshua A. Commun Biol Article Perceptual decisions often require the integration of noisy sensory evidence over time. This process is formalized with sequential sampling models, where evidence is accumulated up to a decision threshold before a choice is made. Although intuition suggests that decision formation must precede the preparation of a motor response (i.e., the action used to communicate the choice), neurophysiological findings have suggested that these two processes might be one and the same. To test this idea, we developed a reverse-correlation protocol in which the visual stimuli that influence decisions can be distinguished from those guiding motor responses. In three experiments, we found that the temporal weighting function of oculomotor responses did not overlap with the relatively early weighting function of stimulus properties having an impact on decision formation. These results support a timeline in which perceptual decisions are formed, at least in part, prior to the preparation of a motor response. Nature Publishing Group UK 2022-03-01 /pmc/articles/PMC8888581/ /pubmed/35233079 http://dx.doi.org/10.1038/s42003-022-03141-1 Text en © The Author(s) 2022 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
Lisi, Matteo
Morgan, Michael J.
Solomon, Joshua A.
Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title_full Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title_fullStr Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title_full_unstemmed Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title_short Perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
title_sort perceptual decisions and oculomotor responses rely on temporally distinct streams of evidence
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8888581/
https://www.ncbi.nlm.nih.gov/pubmed/35233079
http://dx.doi.org/10.1038/s42003-022-03141-1
work_keys_str_mv AT lisimatteo perceptualdecisionsandoculomotorresponsesrelyontemporallydistinctstreamsofevidence
AT morganmichaelj perceptualdecisionsandoculomotorresponsesrelyontemporallydistinctstreamsofevidence
AT solomonjoshuaa perceptualdecisionsandoculomotorresponsesrelyontemporallydistinctstreamsofevidence