Processing of continuously provided punishment and reward in children with ADHD and the modulating effects of stimulant medication: an ERP study.

ABSTRACT:

Objectives

Current models of ADHD suggest abnormal reward and punishment sensitivity, but the exact mechanisms are unclear. This study aims to investigate effects of continuous reward and punishment on the processing of performance feedback in children with ADHD and the modulating effects of stimulant medication.

Methods

15 Methylphenidate (Mph)-treated and 15 Mph-free children of the ADHD-combined type and 17 control children performed a selective attention task with three feedback conditions: no-feedback, gain and loss. Event Related Potentials (ERPs) time-locked to feedback and errors were computed.

Results

All groups performed more accurately with gain and loss than without feedback. Feedback-related ERPs demonstrated no group differences in the feedback P2, but a

SUBMITTER: Groen Y 

PROVIDER: S-EPMC3605450 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature