Touch engages visual spatial contextual processing

Abstract The spatial context in which we view a visual stimulus strongly determines how we perceive the stimulus. In the visual tilt illusion, the perceived orientation of a visual grating is affected by the orientation signals in its surrounding context. Conceivably, the spatial context in which a...

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Autores principales:	Alexis Pérez-Bellido, Ryan D. Pappal, Jeffrey M. Yau
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Visual Tilt Illusions Tactile Orientation Contextual Modulation Effects Central Grating Tactile Grating Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b8fa4ac54e8a4cfbbc9e422b05a5d34e
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spelling	oai:doaj.org-article:b8fa4ac54e8a4cfbbc9e422b05a5d34e2021-12-02T15:08:13ZTouch engages visual spatial contextual processing10.1038/s41598-018-34810-z2045-2322https://doaj.org/article/b8fa4ac54e8a4cfbbc9e422b05a5d34e2018-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-34810-zhttps://doaj.org/toc/2045-2322Abstract The spatial context in which we view a visual stimulus strongly determines how we perceive the stimulus. In the visual tilt illusion, the perceived orientation of a visual grating is affected by the orientation signals in its surrounding context. Conceivably, the spatial context in which a visual grating is perceived can be defined by interactive multisensory information rather than visual signals alone. Here, we tested the hypothesis that tactile signals engage the neural mechanisms supporting visual contextual modulation. Because tactile signals also convey orientation information and touch can selectively interact with visual orientation perception, we predicted that tactile signals would modulate the visual tilt illusion. We applied a bias-free method to measure the tilt illusion while testing visual-only, tactile-only or visuo-tactile contextual surrounds. We found that a tactile context can influence visual tilt perception. Moreover, combining visual and tactile orientation information in the surround results in a larger tilt illusion relative to the illusion achieved with the visual-only surround. These results demonstrate that the visual tilt illusion is subject to multisensory influences and imply that non-visual signals access the neural circuits whose computations underlie the contextual modulation of vision.Alexis Pérez-BellidoRyan D. PappalJeffrey M. YauNature PortfolioarticleVisual Tilt IllusionsTactile OrientationContextual Modulation EffectsCentral GratingTactile GratingMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Visual Tilt Illusions Tactile Orientation Contextual Modulation Effects Central Grating Tactile Grating Medicine R Science Q
spellingShingle	Visual Tilt Illusions Tactile Orientation Contextual Modulation Effects Central Grating Tactile Grating Medicine R Science Q Alexis Pérez-Bellido Ryan D. Pappal Jeffrey M. Yau Touch engages visual spatial contextual processing
description	Abstract The spatial context in which we view a visual stimulus strongly determines how we perceive the stimulus. In the visual tilt illusion, the perceived orientation of a visual grating is affected by the orientation signals in its surrounding context. Conceivably, the spatial context in which a visual grating is perceived can be defined by interactive multisensory information rather than visual signals alone. Here, we tested the hypothesis that tactile signals engage the neural mechanisms supporting visual contextual modulation. Because tactile signals also convey orientation information and touch can selectively interact with visual orientation perception, we predicted that tactile signals would modulate the visual tilt illusion. We applied a bias-free method to measure the tilt illusion while testing visual-only, tactile-only or visuo-tactile contextual surrounds. We found that a tactile context can influence visual tilt perception. Moreover, combining visual and tactile orientation information in the surround results in a larger tilt illusion relative to the illusion achieved with the visual-only surround. These results demonstrate that the visual tilt illusion is subject to multisensory influences and imply that non-visual signals access the neural circuits whose computations underlie the contextual modulation of vision.
format	article
author	Alexis Pérez-Bellido Ryan D. Pappal Jeffrey M. Yau
author_facet	Alexis Pérez-Bellido Ryan D. Pappal Jeffrey M. Yau
author_sort	Alexis Pérez-Bellido
title	Touch engages visual spatial contextual processing
title_short	Touch engages visual spatial contextual processing
title_full	Touch engages visual spatial contextual processing
title_fullStr	Touch engages visual spatial contextual processing
title_full_unstemmed	Touch engages visual spatial contextual processing
title_sort	touch engages visual spatial contextual processing
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b8fa4ac54e8a4cfbbc9e422b05a5d34e
work_keys_str_mv	AT alexisperezbellido touchengagesvisualspatialcontextualprocessing AT ryandpappal touchengagesvisualspatialcontextualprocessing AT jeffreymyau touchengagesvisualspatialcontextualprocessing
_version_	1718388208568369152

Touch engages visual spatial contextual processing

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