JENNIFER FREYD, PhD, is one of the world's leading experts on betrayal and childhood abuse, and she has conducted substantial original research on the topic over the last decade. A tenured professor at the University of Oregon, Dr. Freyd wrote a classic professional book on betrayal, "Betrayal Trauma."

PAMELA BIRRELL, PhD, is a licensed clinical psychologist and senior instructor in the Psychology Department at the University of Oregon. She received her PhD in psychology from the University of Oregon in 1973.