Attention Deficit DisordersAn attention-deficit disorder (ADD) is a developmental disorder characterized by developmentally inappropriate degrees of inattention, overactivity, and impulsivity. Symptoms are neurologically-based, arise in early childhood, and are chronic in nature in most cases. Symptoms are not due to gross neurological impairment, sensory impairment, language or motor impairment, mental retardation, or emotional disturbance.
Three main traits characterize ADD: (1) poor sustained attention or vigilance; (2) impulsivity or difficulty delaying gratification; and (3) hyperactivity or poorly regulated activity. Increased variability of task performance and problems complying with rules are often key features.
For a comprehensive look at Attention Deficit Disorders, read Attention Deficit Disorder: What is ADD? in the Mental Health Journal.