Intraindividual variability in inhibitory function in adults with ADHD--an ex-Gaussian approach.

ABSTRACT:

Objective

Attention deficit disorder (ADHD) is commonly associated with inhibitory dysfunction contributing to typical behavioral symptoms like impulsivity or hyperactivity. However, some studies analyzing intraindividual variability (IIV) of reaction times in children with ADHD (cADHD) question a predominance of inhibitory deficits. IIV is a measure of the stability of information processing and provides evidence that longer reaction times (RT) in inhibitory tasks in cADHD are due to only a few prolonged responses which may indicate deficits in sustained attention rather than inhibitory dysfunction. We wanted to find out, whether a slowing in inhibitory functioning in adults with ADHD (aADHD) is due to isolated slow responses.

Methods

Computing classical RT measures (mean R

SUBMITTER: Gmehlin D 

PROVIDER: S-EPMC4257533 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature