Spatial hand representation in anorexia nervosa: a controlled pilot study

Abstract Body representation distortion (BRD) is a core criterion of Anorexia Nervosa (AN), and is usually assessed subjectively, focusing on body shape. We aimed to develop a new assessment to evaluate body representation independently from socially-mediated body image, on a body part with low emot...

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Autores principales:	J. Verbe, P. G. Lindberg, P. Gorwood, L. Dupin, P. Duriez
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f0adeae56c4049a8a701651e5cc36ebc
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spelling	oai:doaj.org-article:f0adeae56c4049a8a701651e5cc36ebc2021-12-02T18:01:48ZSpatial hand representation in anorexia nervosa: a controlled pilot study10.1038/s41598-021-99101-62045-2322https://doaj.org/article/f0adeae56c4049a8a701651e5cc36ebc2021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99101-6https://doaj.org/toc/2045-2322Abstract Body representation distortion (BRD) is a core criterion of Anorexia Nervosa (AN), and is usually assessed subjectively, focusing on body shape. We aimed to develop a new assessment to evaluate body representation independently from socially-mediated body image, on a body part with low emotional salience (hands). In a monocentric open label pilot study, we measured hand representations based on explicit (verbal) and implicit (tactile) instructions. Participants, with eyes closed, had to point targeted locations (knuckles and nails of each finger) based on verbal instructions and tactile stimulations to evaluate body representations respectively. Ratios between hand width and finger length were compared between AN (n = 31) and controls (n = 31) and correlated with current body mass index, AN subtype and disease duration. To control that hand distortion was specific to body representation, we also assessed object representation. Hand representation’s width/length ratio was significantly increased in patients with AN, whereas no difference was found in object representation. We found no correlation between hand wideness and clinical traits related to eating disorders. Our results propose that BRD is not limited to body parts with high emotional salience, strengthening the hypothesis that anorexia nervosa is associated with profound unspecific BRD.J. VerbeP. G. LindbergP. GorwoodL. DupinP. DuriezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q J. Verbe P. G. Lindberg P. Gorwood L. Dupin P. Duriez Spatial hand representation in anorexia nervosa: a controlled pilot study
description	Abstract Body representation distortion (BRD) is a core criterion of Anorexia Nervosa (AN), and is usually assessed subjectively, focusing on body shape. We aimed to develop a new assessment to evaluate body representation independently from socially-mediated body image, on a body part with low emotional salience (hands). In a monocentric open label pilot study, we measured hand representations based on explicit (verbal) and implicit (tactile) instructions. Participants, with eyes closed, had to point targeted locations (knuckles and nails of each finger) based on verbal instructions and tactile stimulations to evaluate body representations respectively. Ratios between hand width and finger length were compared between AN (n = 31) and controls (n = 31) and correlated with current body mass index, AN subtype and disease duration. To control that hand distortion was specific to body representation, we also assessed object representation. Hand representation’s width/length ratio was significantly increased in patients with AN, whereas no difference was found in object representation. We found no correlation between hand wideness and clinical traits related to eating disorders. Our results propose that BRD is not limited to body parts with high emotional salience, strengthening the hypothesis that anorexia nervosa is associated with profound unspecific BRD.
format	article
author	J. Verbe P. G. Lindberg P. Gorwood L. Dupin P. Duriez
author_facet	J. Verbe P. G. Lindberg P. Gorwood L. Dupin P. Duriez
author_sort	J. Verbe
title	Spatial hand representation in anorexia nervosa: a controlled pilot study
title_short	Spatial hand representation in anorexia nervosa: a controlled pilot study
title_full	Spatial hand representation in anorexia nervosa: a controlled pilot study
title_fullStr	Spatial hand representation in anorexia nervosa: a controlled pilot study
title_full_unstemmed	Spatial hand representation in anorexia nervosa: a controlled pilot study
title_sort	spatial hand representation in anorexia nervosa: a controlled pilot study
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f0adeae56c4049a8a701651e5cc36ebc
work_keys_str_mv	AT jverbe spatialhandrepresentationinanorexianervosaacontrolledpilotstudy AT pglindberg spatialhandrepresentationinanorexianervosaacontrolledpilotstudy AT pgorwood spatialhandrepresentationinanorexianervosaacontrolledpilotstudy AT ldupin spatialhandrepresentationinanorexianervosaacontrolledpilotstudy AT pduriez spatialhandrepresentationinanorexianervosaacontrolledpilotstudy
_version_	1718378963578912768

Spatial hand representation in anorexia nervosa: a controlled pilot study

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