This study tested a 15-session electroencephalograph (EEG) driven photic stimulation neural training procedure designed to enhance the regulation of brain wave activity and thus improve cognitive functioning in Attention Deficit Hyperactivity Disorder (ADHD) children. The subjects (N=25) were 8-14 year old children of intact families and were screened by a developmental pediatrician for other DSM-4 diagnoses and medical conditions. Some of the subjects were medicated and some were not. A quasi-experimental waiting control group design was used with repeated psychometric tests consisting of the Wechsler Intelligence Scale for Children Third Edition (WISC-3), Raven Progressive Matrices (RPM), Wechsler Individual Achievement Test (WIAT), Achenbach Child Behavior Checklist and Profiles (CBCL-P), the computerized performance Test of Variables of Attention (T.O.V.A.), and two separate EEG measures. No significant changes were noted in any waiting period control group tests. Experimental results revealed highly significant (P< 05 two-tailed) EEG changes, improvements in the WISC-3 processing speed and freedom from distractibility scales, WIAT, CBCL-P, and T.O.V.A. fourth quarter commission error test scores. The results of this study are encouraging. The primary goal was accomplished and the hypotheses were supported by the data. Further study is indicated to explore the effects of longer treatment courses, different training goals, and better data procurement procedures using outcome measures of EEG variability coupled with successful psychometric performance.