1. Peggy T. Ackerman, MA, is a research associate in the Department of Psychiatry and Behavioral Sciences, University of Arkansas for Medical Sciences.
2. Roscoe A. Dykman, PhD, is a distinguished professor in the same department and director of the Behavioral Laboratory.
3. Michelle Y. Gardner, BA, is a research assistant in the Behavioral Laboratory. Address: Peggy T. Ackerman, Slot 588, University of Arkansas for Medical Sciences, 4301 West Markham, Little Rock, AR 72205.