Veuillez utiliser cette adresse pour citer ce document : https://hdl.handle.net/10953/3205
Titre: Neural processing of food and erotic cues in bulimia nervosa
Auteur(s): Delgado-Rodríguez, Rafael
Hernández-Rivero, Isabel
Fernández-Santaella, M. Carmen
Vila, Jaime
Guerra, Pedro
Miccoli, Laura
Résumé: Objective: Event-related brain potential (ERP) studies have shown that bulimia nervosa (BN) is associated with facilitated processing of disorder-specific stimuli, visible in altered early components during presentation of food cues and bodies varying in size. Less is known about BN and late ERPs, typically less influenced by perceptual features and regarded as more reliable indices of motivational relevance. The purpose of this study was to use the late positive potential (LPP) to investigate the motivational significance of BN-relevant stimuli. Methods: Highly salient stimuli, such as pictures of personal binge foods and images that are pleasant, neutral, and unpleasant (e.g., human attacks) were presented to 24 women with bulimia and 24 healthy women (19.7 ± 2.1 and 20.5 ± 2.6 years, respectively). Pictures of erotic couples, previously shown to prompt the greatest appetitive reactions in healthy women, were used as pleasant cues. Based on BN aversion to body cues, we hypothesized that the motivational significance of erotic cues could be increased in bulimic women. Results: Consistent with the literature, the LPP was modulated by the salience of the pictures (F(2.8,130.7) = 24.6, p < .001). An additional interaction with diagnostic group (F(2.8,130.7) = 2.8, p = .047) indicated that bulimic women showed a larger LPP than healthy controls during pictures displaying binge foods (p = .037) and erotic couples (p = .031). Conclusions: The findings provide objective evidence that BN is characterized by dysregulated emotional processing that is not limited to food cues. The implications are discussed within a transdiagnostic perspective on food-related disorders. Key words: bulimia nervosa, binge food cues, electrophysiology, emotion, erotic cues, late positive potential.
Mots-clés: bulimia nervosa
binge food cues
electrophysiology
emotion
erotic cues
late positive potential
Date de publication: jui-2017
Editeur: LIPPINCOTT WILLIAMS & WILKINS
Référence bibliographique: Delgado-Rodríguez, R., Hernández-Rivero, I., Fernández-Santaella, M. C., Vila, J., Guerra, P., & Miccoli, L. (2019). Neural processing of food and erotic cues in bulimia nervosa. Psychosomatic Medicine, 81(6), 527-535
Collection(s) :DPS-Artículos

Fichier(s) constituant ce document :
Fichier Description TailleFormat 
Delgado-Rodríguez et al., 2019.pdf553,67 kBAdobe PDFVoir/Ouvrir


Ce document est protégé par copyright


Ce document est autorisé sous une licence de type Licence Creative Commons
Creative Commons