Attention and Short-Term Memory in Normal Children,Aggressive Children,and Non-Aggressive Children with Attention-Deficit Disorder

In the present study, fifteen 7- to 9-year-old male school children with attention deficit disorder (ADD) as well as matched groups of aggressive and normal children were compared on scores obtained for initial acquisition of information and its maintenance in the short-term score under various attentional loads. Bi-colored, alphanumeric arrays were used in a partial-report technique. Retention was measured 0, 5, 10, and 20 s, after pre- and postexposure under both rehearsal and nonrehearsal conditions. ADD children (a) were deficient in original acquisition, (b) were unable to take sufficient advantage of decreased load conditions, and (c) showed decrements over time that paralleled those of the control group (CG). The results have been interpreted in light of maturational lag and the differences between ADD and aggressive groups.