Figure 3From: Protocol for a randomized comparison of integrated versus consecutive dual task practice in Parkinson’s disease: the DUALITY trial Visual presentation of reaction and response times in Matlab R2011b. (a) Visual presentation of Backwards Digit Span task – green = stimulus that is heard by the patient, blue = answer of the patient; (b) Visual presentation of Stroop task. Since four stimuli per fragment are given, four reaction times per fragment can be calculated – green = stimulus that is heard by the patient, blue = answer of the patient.Back to article page