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

Núria Mallorquí-Bagué, María Lozano-Madrid, Giulia Testa, Cristina Vintró-Alcaraz, Isabel Sánchez, Nadine Riesco, José C. Perales, Juan Francisco Navas, Ignacio Martinez-Zalacain, Alberto Megías Robles, Roser Granero, Misericordia Veciana De Las Heras, Rayane Chami, Susana Jiménez-Murcia, José Antonio Fernández-Formoso, Janet Treasure, Fernando Fernández-Aranda

Research output: Contribution to journalArticleResearchpeer-review

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.
Original languageEnglish
Article number960
Pages (from-to)960
Number of pages19
JournalJournal of Clinical Medicine
Volume9
Issue number4
DOIs
Publication statusPublished - 31 Mar 2020

Keywords

  • ADDICTION
  • BRAIN POTENTIALS
  • COGNITIVE REAPPRAISAL
  • DYSREGULATION
  • EATING-DISORDERS
  • EEG
  • EVENT-RELATED POTENTIALS
  • MODULATION
  • OBESE-PATIENTS
  • REGULATION DEFICITS
  • STIMULI
  • anorexia nervosa
  • eating disorders
  • emotion regulation
  • event related potentials
  • food addiction
  • food craving
  • neurophysiology
  • psychopathology

Fingerprint

Dive into the research topics of 'Clinical and Neurophysiological Correlates of Emotion and Food Craving Regulation in Patients with Anorexia Nervosa'. Together they form a unique fingerprint.

Cite this