Disruption of spatial task performance in anorexia nervosa

Guardia, Dewi; Carey, Aurélie; Cottencin, Olivier; Thomas, Pierre; Luyat, Marion

Document type :

Article dans une revue scientifique

DOI :

10.1371/journal.pone.0054928

PMID :

23349990

Permalink :

http://hdl.handle.net/20.500.12210/32063

Title :

Disruption of spatial task performance in anorexia nervosa

Author(s) :

Guardia, Dewi [Auteur]

Carey, Aurélie [Auteur]
Centre Hospitalier Régional Universitaire [Lille] [CHRU Lille]
Cottencin, Olivier [Auteur]

Thomas, Pierre [Auteur]

Luyat, Marion [Auteur]

Psychologie : Interactions, Temps, Emotions, Cognition (PSITEC) - ULR 4072 [PSITEC]

Journal title :

PLoS One

Volume number :

Pages :

e54928

Publication date :

2013-01

HAL domain(s) :

Sciences cognitives

English abstract : [en]

In anorexia nervosa (AN), body distortions have been associated with parietal cortex (PC) dysfunction. The PC is the anatomical substrate for a supramodal reference framework involved in spatial orientation constancy. Here, ...
Show more >In anorexia nervosa (AN), body distortions have been associated with parietal cortex (PC) dysfunction. The PC is the anatomical substrate for a supramodal reference framework involved in spatial orientation constancy. Here, we sought to evaluate spatial orientation constancy and the perception of body orientation in AN patients. In the present study, we investigated the effect of passive lateral body inclination on the visual and tactile subjective vertical (SV) and body Z-axis in 25 AN patients and 25 healthy controls. Subjects performed visual- and tactile-spatial judgments of axis orientations in an upright position and tilted 90° clockwise or counterclockwise. We observed a significant deviation of the tactile and visual SV towards the body (an A-effect) under tilted conditions, suggesting a multisensory impairment in spatial orientation. Deviation of the Z-axis in the direction of the tilt was also observed in the AN group. The greater A-effect in AN patients may reflect reduced interoceptive awareness and thus inadequate consideration of gravitational inflow. Furthermore, marked body weight loss could decrease the somatosensory inputs required for spatial orientation. Our study results suggest that spatial references are impaired in AN. This may be due to particular integration of visual, tactile and gravitational information (e.g. vestibular and proprioceptive cues) in the PC.Show less >

Language :

Anglais

Audience :

Non spécifiée

Popular science :

Non

Administrative institution(s) :

CHU Lille
CNRS
Université de Lille

Collections :

Psychologie : Interactions, Temps, Émotions, Cognition (PSITEC) - ULR 4072

Research team(s) :

Neuropsychologie & Audition

Submission date :

2020-09-14T10:32:50Z
2020-12-14T13:02:09Z
2023-03-29T16:54:31Z

Files

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Except where otherwise noted, this item's license is described as Attribution 3.0 United States

Version	Link	Modification date
3	20.500.12210/32063*	2023-03-29T16:54:20Z
2	20.500.12210/32063.2	2020-12-14T12:56:25Z
1	20.500.12210/32063.1	2020-09-14T10:32:50Z

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