Data di Pubblicazione:
2012
Citazione:
Visual body perception in anorexia nervosa / C. Urgesi, L. Fornasari, L. Perini, F. Canalaz, S. Cremaschi, L. Faleschini, M. Balestrieri, F. Fabbro, S.M. Aglioti, P. Brambilla. - In: INTERNATIONAL JOURNAL OF EATING DISORDERS. - ISSN 0276-3478. - 45:4(2012 May), pp. 501-511.
Abstract:
OBJECTIVE:
Disturbance of body perception is a central aspect of anorexia nervosa (AN) and several neuroimaging studies have documented structural and functional alterations of occipito-temporal cortices involved in visual body processing. However, it is unclear whether these perceptual deficits involve more basic aspects of others' body perception.
METHOD:
A consecutive sample of 15 adolescent patients with AN were compared with a group of 15 age- and gender-matched controls in delayed matching to sample tasks requiring the visual discrimination of the form or of the action of others' body.
RESULTS:
Patients showed better visual discrimination performance than controls in detail-based processing of body forms but not of body actions, which positively correlated with their increased tendency to convert a signal of punishment into a signal of reinforcement (higher persistence scores).
DISCUSSION:
The paradoxical advantage of patients with AN in detail-based body processing may be associated to their tendency to routinely explore body parts as a consequence of their obsessive worries about body appearance.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
anorexia nervosa; body perception; extrastriate body area; neuropsychology: eating disorders
Elenco autori:
C. Urgesi, L. Fornasari, L. Perini, F. Canalaz, S. Cremaschi, L. Faleschini, M. Balestrieri, F. Fabbro, S.M. Aglioti, P. Brambilla
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