Neurobiological signature of intimacy in anorexia nervosa

Eur Eat Disord Rev. 2019 May;27(3):315-322. doi: 10.1002/erv.2663. Epub 2019 Jan 21.

Abstract

Background: Intimacy and psychosexual development represent core problems of anorexia nervosa (AN). Experiential and neurobiological evidence however is scarce.

Material and methods: Thirty-one female AN patients were compared with 35 non-patients (NP) and 22 recovered participants (REC) by using functional magnetic resonance imaging. Participants viewed pictures of couples in intimate relationships and control stimuli.

Results: AN patients experienced intimate stimuli with lower valence and dominance. AN showed decreased activation of parietal cortices. NP decreased the prefrontal cortex response, which AN patients did not. REC participants did not differ from NP on a behavioural level, though with regard to the neural signature.

Discussion: Parietal cortices are related to processing of erotic themes, which seems to be deficient in AN. Dysfunction of prefrontal cortices likely mirrors dysfunctional control in AN. The neural signature does not seem to be state-related considering results of REC.

Keywords: anorexia nervosa; functional magnetic resonance imaging; intimacy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anorexia Nervosa / physiopathology*
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Sexual Behavior*
  • Young Adult