Contingent sounds change the mental representation of one’s finger length

Abstract Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representat...

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Autores principales:	Ana Tajadura-Jiménez, Maria Vakali, Merle T. Fairhurst, Alisa Mandrigin, Nadia Bianchi-Berthouze, Ophelia Deroy
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e1f83cbe2a0c4b6bbdf81aa4c8b6d0e7
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spelling	oai:doaj.org-article:e1f83cbe2a0c4b6bbdf81aa4c8b6d0e72021-12-02T15:05:41ZContingent sounds change the mental representation of one’s finger length10.1038/s41598-017-05870-42045-2322https://doaj.org/article/e1f83cbe2a0c4b6bbdf81aa4c8b6d0e72017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05870-4https://doaj.org/toc/2045-2322Abstract Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representations remain poorly understood. Changes in body-representations by the manipulation of natural sounds produced when one’s body impacts on surfaces have recently been evidenced. But will these changes also occur with non-naturalistic sounds, which provide no information about the impact produced by or on the body? Drawing on the well-documented capacity of dynamic changes in pitch to elicit impressions of motion along the vertical plane and of changes in object size, we asked participants to pull on their right index fingertip with their left hand while they were presented with brief sounds of rising, falling or constant pitches, and in the absence of visual information of their hands. Results show an “auditory Pinocchio” effect, with participants feeling and estimating their finger to be longer after the rising pitch condition. These results provide the first evidence that sounds that are not indicative of veridical movement, such as non-naturalistic sounds, can induce a Pinocchio-like change in body-representation when arbitrarily paired with a bodily action.Ana Tajadura-JiménezMaria VakaliMerle T. FairhurstAlisa MandriginNadia Bianchi-BerthouzeOphelia DeroyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ana Tajadura-Jiménez Maria Vakali Merle T. Fairhurst Alisa Mandrigin Nadia Bianchi-Berthouze Ophelia Deroy Contingent sounds change the mental representation of one’s finger length
description	Abstract Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representations remain poorly understood. Changes in body-representations by the manipulation of natural sounds produced when one’s body impacts on surfaces have recently been evidenced. But will these changes also occur with non-naturalistic sounds, which provide no information about the impact produced by or on the body? Drawing on the well-documented capacity of dynamic changes in pitch to elicit impressions of motion along the vertical plane and of changes in object size, we asked participants to pull on their right index fingertip with their left hand while they were presented with brief sounds of rising, falling or constant pitches, and in the absence of visual information of their hands. Results show an “auditory Pinocchio” effect, with participants feeling and estimating their finger to be longer after the rising pitch condition. These results provide the first evidence that sounds that are not indicative of veridical movement, such as non-naturalistic sounds, can induce a Pinocchio-like change in body-representation when arbitrarily paired with a bodily action.
format	article
author	Ana Tajadura-Jiménez Maria Vakali Merle T. Fairhurst Alisa Mandrigin Nadia Bianchi-Berthouze Ophelia Deroy
author_facet	Ana Tajadura-Jiménez Maria Vakali Merle T. Fairhurst Alisa Mandrigin Nadia Bianchi-Berthouze Ophelia Deroy
author_sort	Ana Tajadura-Jiménez
title	Contingent sounds change the mental representation of one’s finger length
title_short	Contingent sounds change the mental representation of one’s finger length
title_full	Contingent sounds change the mental representation of one’s finger length
title_fullStr	Contingent sounds change the mental representation of one’s finger length
title_full_unstemmed	Contingent sounds change the mental representation of one’s finger length
title_sort	contingent sounds change the mental representation of one’s finger length
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e1f83cbe2a0c4b6bbdf81aa4c8b6d0e7
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Contingent sounds change the mental representation of one’s finger length

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