Serial dependence and representational momentum in single-trial perceptual decisions

Abstract The human brain has evolved to predict and anticipate environmental events from their temporal dynamics. Predictions can bias perception toward the recent past, particularly when the environment contains no foreseeable changes, but can also push perception toward future states of sensory in...

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Autores principales:	D. Pascucci, G. Plomp
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/da17629a05a749adb6af96288237a5f3
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spelling	oai:doaj.org-article:da17629a05a749adb6af96288237a5f32021-12-02T14:35:33ZSerial dependence and representational momentum in single-trial perceptual decisions10.1038/s41598-021-89432-92045-2322https://doaj.org/article/da17629a05a749adb6af96288237a5f32021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89432-9https://doaj.org/toc/2045-2322Abstract The human brain has evolved to predict and anticipate environmental events from their temporal dynamics. Predictions can bias perception toward the recent past, particularly when the environment contains no foreseeable changes, but can also push perception toward future states of sensory input, like when anticipating the trajectory of moving objects. Here, we show that perceptual decisions are simultaneously influenced by both past and future states of sensory signals. Using an orientation adjustment task, we demonstrate that single-trial errors are displaced toward previous features of behaviorally relevant stimuli and, at the same time, toward future states of dynamic sensory signals. These opposing tendencies, consistent with decisional serial dependence and representational momentum, involve different types of processing: serial dependence occurs beyond objecthood whereas representational momentum requires the representation of a single object with coherent dynamics in time and space. The coexistence of these two phenomena supports the independent binding of stimuli and decisions over time.D. PascucciG. PlompNature 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 D. Pascucci G. Plomp Serial dependence and representational momentum in single-trial perceptual decisions
description	Abstract The human brain has evolved to predict and anticipate environmental events from their temporal dynamics. Predictions can bias perception toward the recent past, particularly when the environment contains no foreseeable changes, but can also push perception toward future states of sensory input, like when anticipating the trajectory of moving objects. Here, we show that perceptual decisions are simultaneously influenced by both past and future states of sensory signals. Using an orientation adjustment task, we demonstrate that single-trial errors are displaced toward previous features of behaviorally relevant stimuli and, at the same time, toward future states of dynamic sensory signals. These opposing tendencies, consistent with decisional serial dependence and representational momentum, involve different types of processing: serial dependence occurs beyond objecthood whereas representational momentum requires the representation of a single object with coherent dynamics in time and space. The coexistence of these two phenomena supports the independent binding of stimuli and decisions over time.
format	article
author	D. Pascucci G. Plomp
author_facet	D. Pascucci G. Plomp
author_sort	D. Pascucci
title	Serial dependence and representational momentum in single-trial perceptual decisions
title_short	Serial dependence and representational momentum in single-trial perceptual decisions
title_full	Serial dependence and representational momentum in single-trial perceptual decisions
title_fullStr	Serial dependence and representational momentum in single-trial perceptual decisions
title_full_unstemmed	Serial dependence and representational momentum in single-trial perceptual decisions
title_sort	serial dependence and representational momentum in single-trial perceptual decisions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/da17629a05a749adb6af96288237a5f3
work_keys_str_mv	AT dpascucci serialdependenceandrepresentationalmomentuminsingletrialperceptualdecisions AT gplomp serialdependenceandrepresentationalmomentuminsingletrialperceptualdecisions
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Serial dependence and representational momentum in single-trial perceptual decisions

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