Brainstem auditory evoked potentials (BAEPs) were performed on 114 chi
ldren with attention deficit disorder (ADD). Prolonged latencies of wa
ves III and V and longer brainstem transmission time interval of waves
I-III and I-V were observed in the study group compared with normal c
ontrols. A significant asymmetry of wave III latency between the ears
was found in children with ADD, but not observed in the control group.
The authors conclude that children with ADD have brainstem dysfunctio
n. BAEPs, an objective electrophysiological test, may contribute to th
e diagnosis of ADD, distinguishing these children from the normal popu
lation.