The conflict adaptation effect in Parkinson's disease

Aims: Although several investigations focused on cognitive impairments in Parkinson’s disease (PD) the results are ambiguous. Objective: Our goal was to examine the conflict adaptation effect (CAE) in PD. We hypothesized that CAE is reduced in PD. Methods: Twenty PD patients and twenty matched healthy controls (HC) were investigated with electroencephalography (EEG) while performing an Eriksen flanker (EF) task. Results: During EF task with central arrow onset delay PD patients have significantly longer reaction times (RT) for all conditions (two tailed t-test, p