Attention Deficit Disorder with HyperactivityMethylphenidateLearning DisordersCentral Nervous System StimulantsAttentionHyperkinesisAttention Deficit and Disruptive Behavior DisordersPropylaminesTask Performance and AnalysisNeuropsychological TestsReaction TimeReceptors, Dopamine D4Bipolar DisorderImpulsive BehaviorDiagnostic and Statistical Manual of Mental DisordersMental DisordersConduct DisorderAdrenergic Uptake InhibitorsDextroamphetaminePsychomotor Performance