Forward optic flow is prioritised in visual awareness independently of walking direction.

When two different images are presented separately to each eye, one experiences smooth transitions between them-a phenomenon called binocular rivalry. Previous studies have shown that exposure to signals from other senses can enhance the access of stimulation-congruent images to conscious perception...

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Autores principales:	Paweł Motyka, Mert Akbal, Piotr Litwin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b8fcb595d53b469bb848da4517914e0d
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id	oai:doaj.org-article:b8fcb595d53b469bb848da4517914e0d
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spelling	oai:doaj.org-article:b8fcb595d53b469bb848da4517914e0d2021-11-25T06:19:22ZForward optic flow is prioritised in visual awareness independently of walking direction.1932-620310.1371/journal.pone.0250905https://doaj.org/article/b8fcb595d53b469bb848da4517914e0d2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0250905https://doaj.org/toc/1932-6203When two different images are presented separately to each eye, one experiences smooth transitions between them-a phenomenon called binocular rivalry. Previous studies have shown that exposure to signals from other senses can enhance the access of stimulation-congruent images to conscious perception. However, despite our ability to infer perceptual consequences from bodily movements, evidence that action can have an analogous influence on visual awareness is scarce and mainly limited to hand movements. Here, we investigated whether one's direction of locomotion affects perceptual access to optic flow patterns during binocular rivalry. Participants walked forwards and backwards on a treadmill while viewing highly-realistic visualisations of self-motion in a virtual environment. We hypothesised that visualisations congruent with walking direction would predominate in visual awareness over incongruent ones, and that this effect would increase with the precision of one's active proprioception. These predictions were not confirmed: optic flow consistent with forward locomotion was prioritised in visual awareness independently of walking direction and proprioceptive abilities. Our findings suggest the limited role of kinaesthetic-proprioceptive information in disambiguating visually perceived direction of self-motion and indicate that vision might be tuned to the (expanding) optic flow patterns prevalent in everyday life.Paweł MotykaMert AkbalPiotr LitwinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0250905 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Paweł Motyka Mert Akbal Piotr Litwin Forward optic flow is prioritised in visual awareness independently of walking direction.
description	When two different images are presented separately to each eye, one experiences smooth transitions between them-a phenomenon called binocular rivalry. Previous studies have shown that exposure to signals from other senses can enhance the access of stimulation-congruent images to conscious perception. However, despite our ability to infer perceptual consequences from bodily movements, evidence that action can have an analogous influence on visual awareness is scarce and mainly limited to hand movements. Here, we investigated whether one's direction of locomotion affects perceptual access to optic flow patterns during binocular rivalry. Participants walked forwards and backwards on a treadmill while viewing highly-realistic visualisations of self-motion in a virtual environment. We hypothesised that visualisations congruent with walking direction would predominate in visual awareness over incongruent ones, and that this effect would increase with the precision of one's active proprioception. These predictions were not confirmed: optic flow consistent with forward locomotion was prioritised in visual awareness independently of walking direction and proprioceptive abilities. Our findings suggest the limited role of kinaesthetic-proprioceptive information in disambiguating visually perceived direction of self-motion and indicate that vision might be tuned to the (expanding) optic flow patterns prevalent in everyday life.
format	article
author	Paweł Motyka Mert Akbal Piotr Litwin
author_facet	Paweł Motyka Mert Akbal Piotr Litwin
author_sort	Paweł Motyka
title	Forward optic flow is prioritised in visual awareness independently of walking direction.
title_short	Forward optic flow is prioritised in visual awareness independently of walking direction.
title_full	Forward optic flow is prioritised in visual awareness independently of walking direction.
title_fullStr	Forward optic flow is prioritised in visual awareness independently of walking direction.
title_full_unstemmed	Forward optic flow is prioritised in visual awareness independently of walking direction.
title_sort	forward optic flow is prioritised in visual awareness independently of walking direction.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/b8fcb595d53b469bb848da4517914e0d
work_keys_str_mv	AT pawełmotyka forwardopticflowisprioritisedinvisualawarenessindependentlyofwalkingdirection AT mertakbal forwardopticflowisprioritisedinvisualawarenessindependentlyofwalkingdirection AT piotrlitwin forwardopticflowisprioritisedinvisualawarenessindependentlyofwalkingdirection
_version_	1718413887122964480

Forward optic flow is prioritised in visual awareness independently of walking direction.

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