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Titolo:
Hemispheric differences in body image in anorexia nervosa
Autore:
Smeets, MAM; Kosslyn, SM;
Indirizzi:
Monell Chem Senses Ctr, Philadelphia, PA 19104 USA Monell Chem Senses CtrPhiladelphia PA USA 19104 iladelphia, PA 19104 USA Harvard Univ, Dept Psychol, Cambridge, MA 02138 USA Harvard Univ Cambridge MA USA 02138 Dept Psychol, Cambridge, MA 02138 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF EATING DISORDERS
fascicolo: 4, volume: 29, anno: 2001,
pagine: 409 - 416
SICI:
0276-3478(200105)29:4<409:HDIBII>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Keywords:
lateralization; hemispheric asymmetry; prototypes; body size estimation; eating disorders;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Clinical Medicine
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Smeets, MAM Monell Chem Senses Ctr, 3500 Market St, Philadelphia, PA 19104USA Monell Chem Senses Ctr 3500 Market St Philadelphia PA USA 19104
Citazione:
M.A.M. Smeets e S.M. Kosslyn, "Hemispheric differences in body image in anorexia nervosa", INT J EAT D, 29(4), 2001, pp. 409-416

Abstract

Objective: This study tested the hypothesis that women with anorexia nervosa (AN) have an inappropriately fatter body image in the left cerebral hemisphere (LH) than in the right cerebral hemisphere (RH). Method: Women with AN symptomatology were compared with thin controls in a divided visual field experiment. Distorted and undistorted pictures of their own and someone else's body were flashed briefly in the left and right visual fields. Participants judged the pictures as thinner than, equal to, or fatter than the actual body size. Results: The AN participants judged a higher proportion of fatter distortions as equal to their own size. They responded faster when stimuli were presented initially to the LH than when they were presented initially to the RH. In contrast, fewer thinner distortions were judged as equal to their own body size, and were judged more slowly, on LH trials than on RH trials. Controls did not show hemispheric differences when judging their own body and AN participants did not show hemispheric differences when judging pictures of somebody else. Additional analyses revealed that these findings were carried entirely by a subgroup who had AN in the past, not by the subgroup who currently had AN. Discussion: The brain lateralization paradigm may prove useful in understanding body image disturbance in AN patients. (C) 2001 by John Wiley & Sons, Inc.

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Documento generato il 02/04/20 alle ore 22:20:29