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Title: Clinical and Neurophysiological Correlates of Emotion and Food Craving Regulation in Patients with Anorexia Nervosa
Author: Mallorquí-Bagué, Núria
Lozano-Madrid, María
Testa, Giulia
Vintró Alcaraz, Cristina
Sánchez Zaplana, Isabel
Riesco, Nadine
Perales, José César
Francisco Navas, Juan
Martínez Zalacaín, Ignacio
Megías, Alberto
Granero, Roser
Veciana de las Heras, Misericordia
Chami, Rayane
Jiménez-Murcia, Susana
Fernández Formoso, José Antonio
Treasure, Janet
Fernández Aranda, Fernando
Keywords: Anorèxia nerviosa
Trastorns de la gana
Anorexia nervosa
Appetite disorders
Issue Date: 1-Apr-2020
Publisher: MDPI
Abstract: Background: Difficulties in emotion regulation and craving regulation have been linked to eating symptomatology in patients with anorexia nervosa (AN), contributing to the maintenance of their eating disorder. Methods: To investigate clinical and electrophysiological correlates of these processes, 20 patients with AN and 20 healthy controls (HC) completed a computerized task during EEG recording, where they were instructed to down-regulate negative emotions or food craving. Participants also completed self-report measures of emotional regulation and food addiction. The P300 and Late Positive Potential (LPP) ERPs were analysed. Results: LPP amplitudes were significantly smaller during down-regulation of food craving among both groups. Independent of task condition, individuals with AN showed smaller P300 amplitudes compared to HC. Among HC, the self-reported use of re-appraisal strategies positively correlated with LPP amplitudes during emotional regulation task, while suppressive strategies negatively correlated with LPP amplitudes. The AN group, in comparison to the HC group, exhibited greater food addiction, greater use of maladaptive strategies, and emotional dysregulation. Conclusions: Despite the enhanced self-reported psychopathology among AN, both groups indicated neurophysiological evidence of food craving regulation as evidenced by blunted LPP amplitudes in the relevant task condition. Further research is required to delineate the mechanisms associated with reduced overall P300 amplitudes among individuals with AN
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It is part of: Journal of Clinical Medicine, 2020, vol. 9, num. 4
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ISSN: 2077-0383
Appears in Collections:Articles publicats en revistes (Ciències Clíniques)
Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))

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