Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry

Abstract Integration of multiple properties of an object is a fundamental function of the visual cortex in object recognition. For instance, surface patterns and contour shapes are thought to be crucial characteristics that jointly contribute to recognition. However, the mechanisms of integration an...

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Autores principales:	Ko Sakai, Yui Sakata, Ken Kurematsu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ea0896e90ff34095a7eb6c2dfa38b9df
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spelling	oai:doaj.org-article:ea0896e90ff34095a7eb6c2dfa38b9df2021-12-02T15:51:14ZInteraction of surface pattern and contour shape in the tilt after effects evoked by symmetry10.1038/s41598-021-87429-y2045-2322https://doaj.org/article/ea0896e90ff34095a7eb6c2dfa38b9df2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87429-yhttps://doaj.org/toc/2045-2322Abstract Integration of multiple properties of an object is a fundamental function of the visual cortex in object recognition. For instance, surface patterns and contour shapes are thought to be crucial characteristics that jointly contribute to recognition. However, the mechanisms of integration and corresponding cortical representations have not been fully clarified. We investigated the integration of surfaces and shapes by examining the tilt after effects (TAEs) evoked by the symmetry of patterns and contours. As symmetry in both pattern and contour evokes TAEs, we can directly measure the interaction between the two. The measured TAEs exhibited mutual transfer between the symmetry of the pattern (SP) and that of the contour shape (SS), i.e., adaptation by SP (SS) evoked TAEs when tested by SS (SP), suggesting the existence of an integrated representation. Next, we examined the interaction between SP and SS when both were simultaneously presented in adaptation. Congruent adaptors wherein their symmetry axes aligned evoked compressive interaction, whereas incongruent adaptors wherein the axes of SP and SS tilted to the opposite directions evoked subtractive interaction. These results suggest the existence of a cortical representation that integrates the properties of the surface and shape with suppressive interactions, which can provide crucial insights into the formation of object representation as well as the integration of visual information in the cortex.Ko SakaiYui SakataKen KurematsuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ko Sakai Yui Sakata Ken Kurematsu Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
description	Abstract Integration of multiple properties of an object is a fundamental function of the visual cortex in object recognition. For instance, surface patterns and contour shapes are thought to be crucial characteristics that jointly contribute to recognition. However, the mechanisms of integration and corresponding cortical representations have not been fully clarified. We investigated the integration of surfaces and shapes by examining the tilt after effects (TAEs) evoked by the symmetry of patterns and contours. As symmetry in both pattern and contour evokes TAEs, we can directly measure the interaction between the two. The measured TAEs exhibited mutual transfer between the symmetry of the pattern (SP) and that of the contour shape (SS), i.e., adaptation by SP (SS) evoked TAEs when tested by SS (SP), suggesting the existence of an integrated representation. Next, we examined the interaction between SP and SS when both were simultaneously presented in adaptation. Congruent adaptors wherein their symmetry axes aligned evoked compressive interaction, whereas incongruent adaptors wherein the axes of SP and SS tilted to the opposite directions evoked subtractive interaction. These results suggest the existence of a cortical representation that integrates the properties of the surface and shape with suppressive interactions, which can provide crucial insights into the formation of object representation as well as the integration of visual information in the cortex.
format	article
author	Ko Sakai Yui Sakata Ken Kurematsu
author_facet	Ko Sakai Yui Sakata Ken Kurematsu
author_sort	Ko Sakai
title	Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
title_short	Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
title_full	Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
title_fullStr	Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
title_full_unstemmed	Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
title_sort	interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ea0896e90ff34095a7eb6c2dfa38b9df
work_keys_str_mv	AT kosakai interactionofsurfacepatternandcontourshapeinthetiltaftereffectsevokedbysymmetry AT yuisakata interactionofsurfacepatternandcontourshapeinthetiltaftereffectsevokedbysymmetry AT kenkurematsu interactionofsurfacepatternandcontourshapeinthetiltaftereffectsevokedbysymmetry
_version_	1718385665972895744

Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry

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