Abstract
This article addresses the importance of substantiating changes in basic transactional analysis theory, and in particular, in making changes to Berne's original developments regarding the Parent ego state. It focuses on the period of 1955 to 1962 as a crucial period for the evolution of the Parent ego state. A discussion of some of these alterations is offered along with some pre-Bernian psychoanalytic contributions to highlight an apparent trend away from the analytic roots of transactional analysis toward a behaviorial stance.