View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments

Abstract Humans recognize individual faces regardless of variation in the facial view. The view-tuned face neurons in the inferior temporal (IT) cortex are regarded as the neural substrate for view-invariant face recognition. This study approximated visual features encoded by these neurons as combin...

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Autores principales:	Yunjun Nam, Takayuki Sato, Go Uchida, Ekaterina Malakhova, Shimon Ullman, Manabu Tanifuji
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9761ad5c0e214cb18cf3152e3593da79
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spelling	oai:doaj.org-article:9761ad5c0e214cb18cf3152e3593da792021-12-02T14:37:46ZView-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments10.1038/s41598-021-86842-72045-2322https://doaj.org/article/9761ad5c0e214cb18cf3152e3593da792021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86842-7https://doaj.org/toc/2045-2322Abstract Humans recognize individual faces regardless of variation in the facial view. The view-tuned face neurons in the inferior temporal (IT) cortex are regarded as the neural substrate for view-invariant face recognition. This study approximated visual features encoded by these neurons as combinations of local orientations and colors, originated from natural image fragments. The resultant features reproduced the preference of these neurons to particular facial views. We also found that faces of one identity were separable from the faces of other identities in a space where each axis represented one of these features. These results suggested that view-invariant face representation was established by combining view sensitive visual features. The face representation with these features suggested that, with respect to view-invariant face representation, the seemingly complex and deeply layered ventral visual pathway can be approximated via a shallow network, comprised of layers of low-level processing for local orientations and colors (V1/V2-level) and the layers which detect particular sets of low-level elements derived from natural image fragments (IT-level).Yunjun NamTakayuki SatoGo UchidaEkaterina MalakhovaShimon UllmanManabu TanifujiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yunjun Nam Takayuki Sato Go Uchida Ekaterina Malakhova Shimon Ullman Manabu Tanifuji View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
description	Abstract Humans recognize individual faces regardless of variation in the facial view. The view-tuned face neurons in the inferior temporal (IT) cortex are regarded as the neural substrate for view-invariant face recognition. This study approximated visual features encoded by these neurons as combinations of local orientations and colors, originated from natural image fragments. The resultant features reproduced the preference of these neurons to particular facial views. We also found that faces of one identity were separable from the faces of other identities in a space where each axis represented one of these features. These results suggested that view-invariant face representation was established by combining view sensitive visual features. The face representation with these features suggested that, with respect to view-invariant face representation, the seemingly complex and deeply layered ventral visual pathway can be approximated via a shallow network, comprised of layers of low-level processing for local orientations and colors (V1/V2-level) and the layers which detect particular sets of low-level elements derived from natural image fragments (IT-level).
format	article
author	Yunjun Nam Takayuki Sato Go Uchida Ekaterina Malakhova Shimon Ullman Manabu Tanifuji
author_facet	Yunjun Nam Takayuki Sato Go Uchida Ekaterina Malakhova Shimon Ullman Manabu Tanifuji
author_sort	Yunjun Nam
title	View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
title_short	View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
title_full	View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
title_fullStr	View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
title_full_unstemmed	View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments
title_sort	view-tuned and view-invariant face encoding in it cortex is explained by selected natural image fragments
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9761ad5c0e214cb18cf3152e3593da79
work_keys_str_mv	AT yunjunnam viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments AT takayukisato viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments AT gouchida viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments AT ekaterinamalakhova viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments AT shimonullman viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments AT manabutanifuji viewtunedandviewinvariantfaceencodinginitcortexisexplainedbyselectednaturalimagefragments
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View-tuned and view-invariant face encoding in IT cortex is explained by selected natural image fragments

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