Dr. O'Brien is a native of Louisville, Kentucky and received his professional training at the University of Kentucky, the University of Louisville, and the University of Mississippi Medical Center.
He is a two-time past president of the Mississippi Psychological Association and served as Executive Director for eleven years. He is a Fellow of both the Mississippi Psychological Association and the American Psychological Association. He is a past Executive Secretary of the Mississippi Board of Psychology and Past President of the Association of State and Provincial Psychology Boards.
Dr. O’Brien has 40 years’ experience in virtually every kind of case in which psychological knowledge and expertise can assist the justice system including: