Attention Deficit Disorder with HyperactivityAllylglycineMethylphenidateLearning DisordersCentral Nervous System StimulantsAttentionHyperkinesisAttention Deficit and Disruptive Behavior DisordersPropylaminesNeuropsychological TestsReceptors, Dopamine D4Bipolar DisorderDiagnostic and Statistical Manual of Mental DisordersMental DisordersBrainConduct DisorderImpulsive BehaviorAdrenergic Uptake InhibitorsBrain ChemistryBrain MappingDextroamphetamineBrain InjuriesReaction Time