Linda J. Hayes, PhD, is a Distinguished International Professor at the University of Nevada, Reno. She cofounded the behavior analysis program at the University of Nevada, Reno; and has served two terms as president of the Association for Behavior Analysis International. She has published works on behavior theory and philosophy from an interbehavioral perspective for four decades.
Steven C. Hayes, PhD, is Nevada Foundation Professor in the department of psychology at the University of Nevada, Reno. He has been president of numerous professional organizations, is author of forty-five books and nearly 650 scientific articles, and is among the most cited living psychologists. He has shown in his research how language and thought leads to human suffering, and is originator and codeveloper of acceptance and commitment therapy (ACT): a powerful therapy method that is useful in a wide variety of areas; relational frame theory (RFT): an empirical program in language and cognition; and process-based therapy (with Stefan G. Hofmann).
Koichi Ono, PhD, is professor of psychology at Komazawa University in Tokyo, Japan.
Mayasa Sato, PhD, is professor of psychology at Teikyo University in Tokyo, Japan.