Painfully thin but locked inside a fatter body: abnormalities in both anticipation and execution of action in anorexia nervosa

Metral, Morgane; Guardia, Dewi; Bauwens, Ines; Guerraz, Michel; Lafargue, Gilles; Cottencin, Olivier; Luyat, Marion

Type de document :

Article dans une revue scientifique

DOI :

10.1186/1756-0500-7-707

URL permanente :

http://hdl.handle.net/20.500.12210/32177

Titre :

Painfully thin but locked inside a fatter body: abnormalities in both anticipation and execution of action in anorexia nervosa

Auteur(s) :

Metral, Morgane [Auteur]
Guardia, Dewi [Auteur]

Bauwens, Ines [Auteur]
Guerraz, Michel [Auteur]
Lafargue, Gilles [Auteur]
Cottencin, Olivier [Auteur]

Luyat, Marion [Auteur]

Titre de la revue :

BMC research notes

Numéro :

Pagination :

707

Date de publication :

2014

Résumé en anglais : [en]

BACKGROUND People with anorexia nervosa (AN) usually report feeling broader than they really are. The objective of the present study was to better understand the body schema's involvement in this false self-representation ...
Lire la suite >BACKGROUND People with anorexia nervosa (AN) usually report feeling broader than they really are. The objective of the present study was to better understand the body schema's involvement in this false self-representation in AN. We tested the potential for correction of the body schema impairment via the sensorimotor feedback provided by a real, executed action and relative to an imagined action. We also took account of the impact of the AN patients' weight variations on the task outcomes. METHODS Fourteen inpatient participants with AN and fourteen control participants were presented with a doorway-like aperture. The participants had to (i) judge whether or not various apertures were wide enough for them to pass through in a motor imagery task and then (ii) actually perform the action by passing through various apertures. RESULTS We observed a higher passability ratio (i.e. the ratio between the critical aperture size and shoulder width) in participants with AN (relative to controls) for both motor imagery and real action. Moreover, the magnitude of the passability ratio was positively correlated with weight recovery. CONCLUSION The body schema alteration in AN appears to be strong enough to affect the patient's actions. Furthermore, the alteration resists correction by the sensorimotor feedback generated during action. This bias is linked to weight variations. The central nervous system might be locked to a false representation of the body that cannot be updated. Moreover, these results prompt us to suggest that emotional burden during weight recovery could also alter sensorimotor aspects of body representation. New therapeutic methods should take account of body schema alterations in AN as adjuncts to psychotherapy.Lire moins >

Audience :

Non spécifiée

Vulgarisation :

Non

Établissement(s) :

CHU Lille
CNRS
Université de Lille

Collections :

Équipe(s) de recherche :

Neuropsychologie & Audition

Date de dépôt :

2020-09-14T10:33:18Z

Historique des modifications

Numéro de version	Lien	Date de modification
4	20.500.12210/32177	2023-03-29T17:43:49Z
3	20.500.12210/32177.3	2021-03-15T08:52:42Z
2	20.500.12210/32177.2	2021-01-25T10:57:22Z
1	20.500.12210/32177.1*	2020-09-14T10:33:18Z

*Version sélectionnée

Painfully thin but locked inside a fatter ...

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Painfully thin but locked inside a fatter ... BibTeX CSV Excel RIS

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Historique des modifications

Painfully thin but locked inside a fatter ...

BibTeX

CSV

Excel

RIS