Effects of stimulus and task structure on temporal perceptual learning

Abstract Our ability to discriminate temporal intervals can be improved with practice. This learning is generally thought to reflect an enhancement in the representation of a trained interval, which leads to interval-specific improvements in temporal discrimination. In the present study, we asked wh...

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Autores principales:	Rannie Xu, Russell M. Church, Yuka Sasaki, Takeo Watanabe
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/56ea0650c64c45dc90b968be67f4604a
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id	oai:doaj.org-article:56ea0650c64c45dc90b968be67f4604a
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spelling	oai:doaj.org-article:56ea0650c64c45dc90b968be67f4604a2021-12-02T15:22:58ZEffects of stimulus and task structure on temporal perceptual learning10.1038/s41598-020-80192-62045-2322https://doaj.org/article/56ea0650c64c45dc90b968be67f4604a2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80192-6https://doaj.org/toc/2045-2322Abstract Our ability to discriminate temporal intervals can be improved with practice. This learning is generally thought to reflect an enhancement in the representation of a trained interval, which leads to interval-specific improvements in temporal discrimination. In the present study, we asked whether temporal learning is further constrained by context-specific factors dictated through the trained stimulus and task structure. Two groups of participants were trained using a single-interval auditory discrimination task over 5 days. Training intervals were either one of eight predetermined values (FI group), or random from trial to trial (RI group). Before and after the training period, we measured discrimination performance using an untrained two-interval temporal comparison task. Our results revealed a selective improvement in the FI group, but not the RI group. However, this learning did not generalize between the trained and untrained tasks. These results highlight the sensitivity of TPL to stimulus and task structure, suggesting that mechanisms of temporal learning rely on processes beyond changes in interval representation.Rannie XuRussell M. ChurchYuka SasakiTakeo WatanabeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rannie Xu Russell M. Church Yuka Sasaki Takeo Watanabe Effects of stimulus and task structure on temporal perceptual learning
description	Abstract Our ability to discriminate temporal intervals can be improved with practice. This learning is generally thought to reflect an enhancement in the representation of a trained interval, which leads to interval-specific improvements in temporal discrimination. In the present study, we asked whether temporal learning is further constrained by context-specific factors dictated through the trained stimulus and task structure. Two groups of participants were trained using a single-interval auditory discrimination task over 5 days. Training intervals were either one of eight predetermined values (FI group), or random from trial to trial (RI group). Before and after the training period, we measured discrimination performance using an untrained two-interval temporal comparison task. Our results revealed a selective improvement in the FI group, but not the RI group. However, this learning did not generalize between the trained and untrained tasks. These results highlight the sensitivity of TPL to stimulus and task structure, suggesting that mechanisms of temporal learning rely on processes beyond changes in interval representation.
format	article
author	Rannie Xu Russell M. Church Yuka Sasaki Takeo Watanabe
author_facet	Rannie Xu Russell M. Church Yuka Sasaki Takeo Watanabe
author_sort	Rannie Xu
title	Effects of stimulus and task structure on temporal perceptual learning
title_short	Effects of stimulus and task structure on temporal perceptual learning
title_full	Effects of stimulus and task structure on temporal perceptual learning
title_fullStr	Effects of stimulus and task structure on temporal perceptual learning
title_full_unstemmed	Effects of stimulus and task structure on temporal perceptual learning
title_sort	effects of stimulus and task structure on temporal perceptual learning
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/56ea0650c64c45dc90b968be67f4604a
work_keys_str_mv	AT ranniexu effectsofstimulusandtaskstructureontemporalperceptuallearning AT russellmchurch effectsofstimulusandtaskstructureontemporalperceptuallearning AT yukasasaki effectsofstimulusandtaskstructureontemporalperceptuallearning AT takeowatanabe effectsofstimulusandtaskstructureontemporalperceptuallearning
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Effects of stimulus and task structure on temporal perceptual learning

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