Evidence for higher reaction time variability for children with ADHD on a range of cognitive tasks including reward and event rate manipulations.

ABSTRACT:

Objective

The purpose of the research study was to examine the manifestation of variability in reaction times (RT) in children with attention deficit hyperactivity disorder (ADHD) and to examine whether RT variability presented differently across a variety of neuropsychological tasks, was present across the two most common ADHD subtypes, and whether it was affected by reward and event rate (ER) manipulations.

Method

Children with ADHD-combined type (n = 51), ADHD-predominantly inattentive type (n = 53), and 47 controls completed five neuropsychological tasks (Choice Discrimination Task, Child Attentional Network Task, Go/No-Go task, Stop Signal Task, and N-back task), each allowing trial-by-trial assessment of RTs. Multiple indicators of RT variability including RT standard

SUBMITTER: Epstein JN 

PROVIDER: S-EPMC3522094 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature