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Motor-based bodily self is selectively impaired in eating disorders
- Source :
- PLOS ONE, Vol. 12, No 11 (2017) P. e0187342, PLoS ONE, Vol 12, Iss 11, p e0187342 (2017), PLoS ONE
- Publication Year :
- 2017
-
Abstract
- Background Body representation disturbances in body schema (i.e. unconscious sensorimotor body representations for action) have been frequently reported in eating disorders. Recently, it has been proposed that body schema relies on adequate functioning of the motor system, which is strongly implicated in discriminating between one's own and someone else's body. The present study aimed to investigate the motor-based bodily self in eating disorders and controls, in order to examine the role of the motor system in body representation disturbances at the body schema level. Method Female outpatients diagnosed with eating disorders (N = 15), and healthy controls (N = 18) underwent a hand laterality task, in which their own (self-stimuli) and someone else's hands (other-stimuli) were displayed at different orientations. Participants had to mentally rotate their own hand in order to provide a laterality judgement. Group differences in motor-based bodily self-recognition-i.e. whether a general advantage occurred when implicitly processing self- vs. other-stimuli - were evaluated, by analyzing response times and accuracy by means of mixed ANOVAs. Results Patients with eating disorders did not show a temporal advantage when mentally rotating self-stimuli compared to other-stimuli, as opposed to controls (F(1, 31) = 5.6, p = 0.02; eating disorders-other = 1092 ±256 msec, eating disorders-self = 1097±254 msec; healthy controls-other = 1239±233 msec, healthy controls -self = 1192±232 msec). Conclusion This study provides initial indication that high-level motor functions might be compromised as part of body schema disturbances in eating disorders. Further larger investigations are required to test motor system abnormalities in the context of body schema disturbance in eating disorders.
- Subjects :
- Anorexia Nervosa
Eating Disorders
lcsh:Medicine
Hands
Audiology
Nervous System
Functional Laterality
Body Mass Index
Cognition
0302 clinical medicine
Medicine and Health Sciences
lcsh:Science
Musculoskeletal System
Cognitive Impairment
Multidisciplinary
Cognitive Neurology
05 social sciences
Arms
Eating disorders
Neurology
Laterality
Female
Analysis of variance
Anatomy
Psychology
Research Article
medicine.medical_specialty
Patients
Adolescent
Cognitive Neuroscience
education
Context (language use)
050105 experimental psychology
Feeding and Eating Disorders
03 medical and health sciences
health services administration
Mental Health and Psychiatry
Motor system
medicine
Body Image
Humans
0501 psychology and cognitive sciences
Bulimia Nervosa
Psychiatry
Limbs (Anatomy)
lcsh:R
Biology and Life Sciences
Feeding and Eating Disorders/psychology
medicine.disease
Motor System
Health Care
Action (philosophy)
Body schema
Case-Control Studies
Cognitive Science
lcsh:Q
Body mass index
030217 neurology & neurosurgery
Neuroscience
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Database :
- OpenAIRE
- Journal :
- PLOS ONE, Vol. 12, No 11 (2017) P. e0187342, PLoS ONE, Vol 12, Iss 11, p e0187342 (2017), PLoS ONE
- Accession number :
- edsair.doi.dedup.....2c8f6fba9af846e508f643bacc76836f