Hyperactivity as dysfunction of activity, arousal, or attention: a study of research relating to DSM III's Attention Deficit Disorder.

Examined the recent shift in emphasis from overactivity to the related constructs of arousal, attention and impulsivity in the study of "hyperactive" children. Studies are reviewed that have led to a reconceptualization of the hyperkinetic disorder that focuses on underlying physiological arousal and attentional components. The adequacy of DSM III diagnostic criteria for Attention Deficit Disorder are considered in light of relevant research developments.