Attention Deficit Disorder with HyperactivityMethylphenidateLearning DisordersCentral Nervous System StimulantsSoundAttentionHyperkinesisAttention Deficit and Disruptive Behavior DisordersPropylaminesSound LocalizationHeart SoundsNeuropsychological TestsReceptors, Dopamine D4Bipolar DisorderDiagnostic and Statistical Manual of Mental DisordersMental DisordersConduct DisorderImpulsive BehaviorReaction TimeAdrenergic Uptake InhibitorsDextroamphetamine