Visual Network Asymmetry and Default Mode Network Function in ADHD: An fMRI Study.

ABSTRACT:

Background

A growing body of research has identified abnormal visual information processing in attention-deficit hyperactivity disorder (ADHD). In particular, slow processing speed and increased reliance on visuo-perceptual strategies have become evident.

Objective

The current study used recently developed fMRI methods to replicate and further examine abnormal rightward biased visual information processing in ADHD and to further characterize the nature of this effect; we tested its association with several large-scale distributed network systems.

Method

We examined fMRI BOLD response during letter and location judgment tasks, and directly assessed visual network asymmetry and its association with large-scale networks using both a voxelwise and an averaged signal appro

SUBMITTER: Hale TS 

PROVIDER: S-EPMC4097354 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature