Learning in hyperactive children : are there stimulant-related and state-dependent effects?

A group of 17 hyperactive children participated in a laboratory learning task in order to replicate the findings of Swanson and Kinsbourne (1976) indicating that learning performance is facilitated by a single dose of methylphenidate and retention performance is state-dependent. This study revealed no cross-validation in support of the findings of Swanson and Kinsbourne (1976).