Goal-directed vs. habitual instrumental behavior during reward processing in anorexia nervosa: an fMRI study.

ABSTRACT: Previous studies have proposed that altered reward processing and elevated cognitive control underlie the etiology of anorexia nervosa (AN). A newly debated notion suggests altered habit learning and an overreliance on habits may contribute to the persistence of AN. In weight-recovered AN patients, we previously found neuroimaging-based evidence for unaltered reward processing, but elevated cognitive control. In order to differentiate between state versus trait factors, we here contrast the aforementioned hypotheses in a sample of acutely underweight AN (acAN) patients. 37 acAN patients and 37 closely matched healthy controls (HC) underwent a functional MRI while performing an established instrumental motivation task. We found no group differences with respect to neural responses during th

SUBMITTER: Steding J 

PROVIDER: S-EPMC6753148 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature