title: Neurocognition in bulimic eating disorders: a systematic review.
abstract: Van den Eynde F, Guillaume S, Broadbent H, Stahl D, Campbell IC, Schmidt U, Tchanturia K. Neurocognition in bulimic eating disorders: a systematic review.
  
  
  OBJECTIVE
  The aim of this study was to review the literature on neurocognition comparing people with a bulimic eating disorder in the acute phase of the illness with healthy controls (HC).
  
  
  METHODS
  The review follows the PRISMA (preferred reporting items for systematic reviews and meta-analysis) statement guidelines. Three databases (Medline, Web of Science, and Scopus) were searched combining the search terms 'bulimic disorder', 'bulimia nervosa (BN)', 'binge-eating disorder (BED)' with terms referring to cognitive domains (e.g. 'executive functions').
  
  
  RESULTS
  Thirty-seven studies on people with BN and four on people with BED were selected for review. Overall, sample sizes were relatively small [bulimic disorders: median and range 22 (12-83); HC: 27 (13-172)]. The diversity in methodology precluded a meta-analytical approach. People with a bulimic disorder did not present with a clear neurocognitive profile. Inclusion of salient, disorder-related stimuli (e.g. body weight/shape words) in the neurocognitive paradigms tended to generate differences between people with a bulimic disorder and HC.
  
  
  CONCLUSIONS
  Neurocognition in bulimic eating disorders is under researched, and the available evidence is inconclusive. This review outlines strategies for further research in this area.
authors.affiliation: King's College London, Institute of Psychiatry, Psychological Medicine, London, UK. Frederique.vandeneynde@iop.kcl.ac.uk
authors.forename: F
authors.initials: F
authors.lastname: Van den Eynde
authors.forename: S
authors.initials: S
authors.lastname: Guillaume
authors.forename: H
authors.initials: H
authors.lastname: Broadbent
authors.forename: D
authors.initials: D
authors.lastname: Stahl
authors.forename: I C
authors.initials: IC
authors.lastname: Campbell
authors.forename: U
authors.initials: U
authors.lastname: Schmidt
authors.forename: K
authors.initials: K
authors.lastname: Tchanturia
mesh_terms: D000328:Adult; D000367:Age Factors; D056912:Binge-Eating Disorder / Q000150:complications / Q000175:diagnosis* / Q000523:psychology; D052018:Bulimia Nervosa / Q000150:complications / Q000175:diagnosis* / Q000523:psychology; D003073:Cognitive Dissonance; D056344:Executive Function; D005260:Female; D006801:Humans; D007206:Individuality; D008297:Male; D009483:Neuropsychological Tests / Q000592:standards / Q000706:statistics & numerical data; D010043:Outcome and Process Assessment, Health Care; D050177:Overweight / Q000209:etiology / Q000523:psychology; D018579:Patient Selection; D018401:Sample Size; D012737:Sex Factors