Keeping in touch with one's self: multisensory mechanisms of self-consciousness.

<h4>Background</h4>The spatial unity between self and body can be disrupted by employing conflicting visual-somatosensory bodily input, thereby bringing neurological observations on bodily self-consciousness under scientific scrutiny. Here we designed a novel paradigm linking the study o...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jane E Aspell, Bigna Lenggenhager, Olaf Blanke
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e190ee7b2d884e7e911330bbb1c9e7ee
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e190ee7b2d884e7e911330bbb1c9e7ee
record_format	dspace
spelling	oai:doaj.org-article:e190ee7b2d884e7e911330bbb1c9e7ee2021-11-25T06:21:12ZKeeping in touch with one's self: multisensory mechanisms of self-consciousness.1932-620310.1371/journal.pone.0006488https://doaj.org/article/e190ee7b2d884e7e911330bbb1c9e7ee2009-08-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19654862/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The spatial unity between self and body can be disrupted by employing conflicting visual-somatosensory bodily input, thereby bringing neurological observations on bodily self-consciousness under scientific scrutiny. Here we designed a novel paradigm linking the study of bodily self-consciousness to the spatial representation of visuo-tactile stimuli by measuring crossmodal congruency effects (CCEs) for the full body.<h4>Methodology/principal findings</h4>We measured full body CCEs by attaching four vibrator-light pairs to the trunks (backs) of subjects who viewed their bodies from behind via a camera and a head mounted display (HMD). Subjects made speeded elevation (up/down) judgments of the tactile stimuli while ignoring light stimuli. To modulate self-identification for the seen body subjects were stroked on their backs with a stick and the felt stroking was either synchronous or asynchronous with the stroking that could be seen via the HMD. We found that (1) tactile stimuli were mislocalized towards the seen body (2) CCEs were modulated systematically during visual-somatosensory conflict when subjects viewed their body but not when they viewed a body-sized object, i.e. CCEs were larger during synchronous than during asynchronous stroking of the body and (3) these changes in the mapping of tactile stimuli were induced in the same experimental condition in which predictable changes in bodily self-consciousness occurred.<h4>Conclusions/significance</h4>These data reveal that systematic alterations in the mapping of tactile stimuli occur in a full body illusion and thus establish CCE magnitude as an online performance proxy for subjective changes in global bodily self-consciousness.Jane E AspellBigna LenggenhagerOlaf BlankePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 4, Iss 8, p e6488 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jane E Aspell Bigna Lenggenhager Olaf Blanke Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
description	<h4>Background</h4>The spatial unity between self and body can be disrupted by employing conflicting visual-somatosensory bodily input, thereby bringing neurological observations on bodily self-consciousness under scientific scrutiny. Here we designed a novel paradigm linking the study of bodily self-consciousness to the spatial representation of visuo-tactile stimuli by measuring crossmodal congruency effects (CCEs) for the full body.<h4>Methodology/principal findings</h4>We measured full body CCEs by attaching four vibrator-light pairs to the trunks (backs) of subjects who viewed their bodies from behind via a camera and a head mounted display (HMD). Subjects made speeded elevation (up/down) judgments of the tactile stimuli while ignoring light stimuli. To modulate self-identification for the seen body subjects were stroked on their backs with a stick and the felt stroking was either synchronous or asynchronous with the stroking that could be seen via the HMD. We found that (1) tactile stimuli were mislocalized towards the seen body (2) CCEs were modulated systematically during visual-somatosensory conflict when subjects viewed their body but not when they viewed a body-sized object, i.e. CCEs were larger during synchronous than during asynchronous stroking of the body and (3) these changes in the mapping of tactile stimuli were induced in the same experimental condition in which predictable changes in bodily self-consciousness occurred.<h4>Conclusions/significance</h4>These data reveal that systematic alterations in the mapping of tactile stimuli occur in a full body illusion and thus establish CCE magnitude as an online performance proxy for subjective changes in global bodily self-consciousness.
format	article
author	Jane E Aspell Bigna Lenggenhager Olaf Blanke
author_facet	Jane E Aspell Bigna Lenggenhager Olaf Blanke
author_sort	Jane E Aspell
title	Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
title_short	Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
title_full	Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
title_fullStr	Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
title_full_unstemmed	Keeping in touch with one's self: multisensory mechanisms of self-consciousness.
title_sort	keeping in touch with one's self: multisensory mechanisms of self-consciousness.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/e190ee7b2d884e7e911330bbb1c9e7ee
work_keys_str_mv	AT janeeaspell keepingintouchwithonesselfmultisensorymechanismsofselfconsciousness AT bignalenggenhager keepingintouchwithonesselfmultisensorymechanismsofselfconsciousness AT olafblanke keepingintouchwithonesselfmultisensorymechanismsofselfconsciousness
_version_	1718413832776318976

Keeping in touch with one's self: multisensory mechanisms of self-consciousness.

Ejemplares similares