Clinical and Neurophysiological Correlates of Emotion and Food Craving Regulation in Patients with Anorexia Nervosa

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, 2...

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Autores: Mallorquí-Bagué, Núria|||0000-0003-1434-3162, Lozano Madrid, María|||0000-0003-3833-317X, Testa, Giulia|||0000-0003-4200-8062, Vintró Alcaraz, Cristina|||0000-0001-9453-8810, Sánchez Díaz, Isabel María|||0000-0001-5874-8204, Riesco, Nadine|||0000-0002-6336-4907, Perales, José C.|||0000-0001-5163-8811, Navas, Juan Francisco, Martínez-Zalacaín, Ignacio|||0000-0002-4036-0284, Megías Robles, Alberto|||0000-0002-4563-7465, Granero, Roser|||0000-0001-6308-3198, Veciana de las Heras, Misericordia|||0000-0002-1878-8663, Chami, Rayane, Jiménez Murcia, Susana|||0000-0002-3596-8033, Fernandez Formoso, Jose Antonio|||0000-0001-5310-1655, Treasure, Janet|||0000-0003-0871-4596, Fernández Aranda, Fernando|||0000-0002-2968-9898
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:240443
Acceso en línea:https://ddd.uab.cat/record/240443
https://dx.doi.org/urn:doi:10.3390/jcm9040960
Access Level:acceso abierto
Palabra clave:Food craving
Food addiction
Emotion regulation
Eating disorders
Anorexia nervosa
Event related potentials
EEG
Neurophysiology
Psychopathology
Descripción
Sumario: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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