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. (C) 2012 by Wiley Periodicals, Inc.

Visual body perception in anorexia nervosa / Cosimo, Urgesi; Livia, Fornasari; Laura, Perini; Francesca, Canalaz; Silvana, Cremaschi; Laura, Faleschini; Matteo, Balestrieri; Franco, Fabbro; Aglioti, Salvatore Maria; Paolo, Brambilla. - In: INTERNATIONAL JOURNAL OF EATING DISORDERS. - ISSN 0276-3478. - STAMPA. - 45:4(2012), pp. 501-511. [10.1002/eat.20982]

Visual body perception in anorexia nervosa

AGLIOTI, Salvatore Maria;
2012

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. (C) 2012 by Wiley Periodicals, Inc.
2012
anorexia nervosa; body perception; extrastriate body area; neuropsychology: eating disorders
01 Pubblicazione su rivista::01a Articolo in rivista
Visual body perception in anorexia nervosa / Cosimo, Urgesi; Livia, Fornasari; Laura, Perini; Francesca, Canalaz; Silvana, Cremaschi; Laura, Faleschini; Matteo, Balestrieri; Franco, Fabbro; Aglioti, Salvatore Maria; Paolo, Brambilla. - In: INTERNATIONAL JOURNAL OF EATING DISORDERS. - ISSN 0276-3478. - STAMPA. - 45:4(2012), pp. 501-511. [10.1002/eat.20982]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/461092
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