Attention Deficit Disorder with HyperactivityMethylphenidateLearning DisordersCentral Nervous System StimulantsAttentionAdolescent BehaviorHyperkinesisAttention Deficit and Disruptive Behavior DisordersPropylaminesAdolescent PsychologyConduct DisorderMental DisordersBipolar DisorderNeuropsychological TestsReceptors, Dopamine D4Diagnostic and Statistical Manual of Mental DisordersImpulsive BehaviorAdrenergic Uptake InhibitorsDextroamphetamineAnxiety DisordersPsychiatric Status Rating Scales