title: The processing of food stimuli in abnormal eating: a systematic review of electrophysiology.
abstract: To update the knowledge about attentional processing of food stimuli, a systematic review of electrophysiological studies was conducted using PubMed, PsychInfo and Web of Knowledge (2000-2014). Twenty-one studies were included into a qualitative synthesis. Presentation of food and control pictures was used to analyze event-related potentials related to sensory processing and motivated attention. Results show consistent attentional bias towards food pictures compared with neutral pictures for patient and control groups. Group comparisons between individuals with abnormal-eating and healthy-eating participants were more inconsistent. Results suggest that temporal differences in the millisecond range are essential for the understanding of visual food processing. In obesity, early attention engagement to food is followed by relatice disengagement. Loss of control eating, as well as external and emotional eating, are associated with a sustained maintenance of attention towards high-caloric food. There is a lack of studies in anorexia nervosa, bulimia nervosa and binge eating disorder.
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|Ciber Fisiopatologia Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, Barcelona, Spain.
authors.forename: Ines
authors.initials: I
authors.lastname: Wolz
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|Ciber Fisiopatologia Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, Barcelona, Spain.
authors.forename: Ana B
authors.initials: AB
authors.lastname: Fagundo
authors.affiliation: Eating Disorders Unit, Institute of Psychiatry, King's College, London, UK.
authors.forename: Janet
authors.initials: J
authors.lastname: Treasure
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|Ciber Fisiopatologia Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, Barcelona, Spain.|Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Fernández-Aranda
mesh_terms: D000856:Anorexia Nervosa / Q000503:physiopathology* / Q000523:psychology; D001066:Appetite / Q000502:physiology; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D056912:Binge-Eating Disorder / Q000503:physiopathology* / Q000523:psychology; D052018:Bulimia Nervosa / Q000503:physiopathology* / Q000523:psychology; D002540:Cerebral Cortex / Q000503:physiopathology*; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D005502:Food; D006801:Humans; D008297:Male; D009042:Motivation / Q000502:physiology; D009765:Obesity / Q000503:physiopathology* / Q000523:psychology; D010364:Pattern Recognition, Visual / Q000502:physiology*
keywords: anorexia nervosa; binge eating disorder; bulimia nervosa; obesity; subclinical