Increased BOLD signal in the fusiform gyrus during implicit emotion processing in anorexia nervosa.

ABSTRACT:

Background

The behavioural literature in anorexia nervosa (AN) has suggested impairments in psychosocial functioning and studies using facial expression processing tasks (FEPT) have reported poorer recognition and slower identification of emotions.

Methods

Functional magnetic resonance imaging (fMRI) was used alongside a FEPT, depicting neutral, mildly happy and happy faces, to examine the neural correlates of implicit emotion processing in AN. Participants were instructed to specify the gender of the faces. Levels of depression, anxiety, obsessive-compulsive symptoms and eating disorder behaviour were obtained and principal component analysis (PCA) was performed to acquire uncorrelated variables.

Results

fMRI analysis revealed a greater blood-oxygenation level depend

SUBMITTER: Fonville L 

PROVIDER: S-EPMC3913832 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature