Thomas H. Crook lll, Ph.D., is widely regarded as a leading international expert on memory retention and memory loss. He is the author or editor of eight academic books, more than 175 peer review journal articles and has delivered more than 300 invited academic presentations. He received a doctorate in psychology from the University of Maryland, and subsequently spent fourteen years as a clinical research psychologist and research program director at the National Institute of Mental Health (NIMH). Dr. Crook is the former chairman of both the NIMH and American Psychological Association Task Forces on the Diagnosis and Treatment of Age-Associated Memory Impairment. For the past thirteen years, he has directed private research corporations and is president of Psychologix Inc., a worldwide research organization.