The rubber hand illusion is a fallible method to study ownership of prosthetic limbs

Abstract Enabling sensory feedback in limb prostheses can reverse a damaged body image caused by amputation. The rubber hand illusion (RHI) is a popular paradigm to study ownership of artificial limbs and potentially useful to assess sensory feedback strategies. We investigated the RHI as means to i...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jan Zbinden, Max Ortiz-Catalan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a61e54ff5ddc483786ec03e5a92a67ca
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a61e54ff5ddc483786ec03e5a92a67ca
record_format	dspace
spelling	oai:doaj.org-article:a61e54ff5ddc483786ec03e5a92a67ca2021-12-02T13:20:14ZThe rubber hand illusion is a fallible method to study ownership of prosthetic limbs10.1038/s41598-021-83789-72045-2322https://doaj.org/article/a61e54ff5ddc483786ec03e5a92a67ca2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83789-7https://doaj.org/toc/2045-2322Abstract Enabling sensory feedback in limb prostheses can reverse a damaged body image caused by amputation. The rubber hand illusion (RHI) is a popular paradigm to study ownership of artificial limbs and potentially useful to assess sensory feedback strategies. We investigated the RHI as means to induce ownership of a prosthetic hand by providing congruent visual and tactile stimuli. We elicited tactile sensations via electric stimulation of severed afferent nerve fibres in four participants with transhumeral amputation. Contrary to our expectations, they failed to experience the RHI. The sensations we elicited via nerve stimulation resemble tapping as opposed to stroking, as in the original RHI. We therefore investigated the effect of tapping versus stroking in 30 able-bodied subjects. We found that either tactile modality equally induced ownership in two-thirds of the subjects. Failure to induce the RHI in the intact hand of our participants with amputation later confirmed that they form part of the RHI-immune population. Conversely, these participants use neuromusculoskeletal prostheses with neural sensory feedback in their daily lives and reported said prostheses as part of their body. Our findings suggest that people immune to the RHI can nevertheless experience ownership over prosthetic limbs when used in daily life and accentuates a significant limitation of the RHI paradigm.Jan ZbindenMax Ortiz-CatalanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jan Zbinden Max Ortiz-Catalan The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
description	Abstract Enabling sensory feedback in limb prostheses can reverse a damaged body image caused by amputation. The rubber hand illusion (RHI) is a popular paradigm to study ownership of artificial limbs and potentially useful to assess sensory feedback strategies. We investigated the RHI as means to induce ownership of a prosthetic hand by providing congruent visual and tactile stimuli. We elicited tactile sensations via electric stimulation of severed afferent nerve fibres in four participants with transhumeral amputation. Contrary to our expectations, they failed to experience the RHI. The sensations we elicited via nerve stimulation resemble tapping as opposed to stroking, as in the original RHI. We therefore investigated the effect of tapping versus stroking in 30 able-bodied subjects. We found that either tactile modality equally induced ownership in two-thirds of the subjects. Failure to induce the RHI in the intact hand of our participants with amputation later confirmed that they form part of the RHI-immune population. Conversely, these participants use neuromusculoskeletal prostheses with neural sensory feedback in their daily lives and reported said prostheses as part of their body. Our findings suggest that people immune to the RHI can nevertheless experience ownership over prosthetic limbs when used in daily life and accentuates a significant limitation of the RHI paradigm.
format	article
author	Jan Zbinden Max Ortiz-Catalan
author_facet	Jan Zbinden Max Ortiz-Catalan
author_sort	Jan Zbinden
title	The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
title_short	The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
title_full	The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
title_fullStr	The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
title_full_unstemmed	The rubber hand illusion is a fallible method to study ownership of prosthetic limbs
title_sort	rubber hand illusion is a fallible method to study ownership of prosthetic limbs
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a61e54ff5ddc483786ec03e5a92a67ca
work_keys_str_mv	AT janzbinden therubberhandillusionisafalliblemethodtostudyownershipofprostheticlimbs AT maxortizcatalan therubberhandillusionisafalliblemethodtostudyownershipofprostheticlimbs AT janzbinden rubberhandillusionisafalliblemethodtostudyownershipofprostheticlimbs AT maxortizcatalan rubberhandillusionisafalliblemethodtostudyownershipofprostheticlimbs
_version_	1718393230894039040

The rubber hand illusion is a fallible method to study ownership of prosthetic limbs

Ejemplares similares