science

Every child wonders, sooner or later, how it is that simply wanting one’s hands, arms, legs, body, head, or eyes to move suffices to create the wanted result…. — So begins this lovely essay and overview of the fundamental issues that cry out for answers. […]

The BYTE articles are a book unto themselves – a four-part introduction to PCT and modeling. […]

The Road Not Taken to a scientific psychology. […]

Letter to Philip J. Runkel, November 8, 1985 […]

About Perceptual Control Theory (PCT), some history, status, and what you will experience when studying PCT. Highlights from an introductory essay William T. (Bill) Powers wrote in May, 1980 […]

Dag Forssell This script and the accompanying video are designed to introduce and demonstrate the basic concept of PCT. The article Perceptual Control: Management Insight for Problem Solving, in the book: Management and Leadership: Insight […]

Hugh G. Petrie “I think that this book will be ‘compulsory reading’ in graduate schools of education around the country, and that it will arouse a vigorous and healthy controversy by shaking people out of […]

Hugh G. Petrie “For most of his career, Hugh was way ahead of his time. His papers in this volume still are. The role of the evolutionary process of blind variation and selective retention in […]

Phil Runkel The spring semester is nearly half completed. I am using your book in two classes. My experience this year is identical to that last year., when I wrote to you, “As time passes […]

Timothy A. Carey “This new book is a great addition to the educational literature. It introduces educators to the most important and revolutionary new development in psychology in decades, PCT. And it does this in […]

Dag Forssell “When i first learned of PCT about seven years ago, I read everything I could get my hands on and your articles, for me, most clearly explained PCT. Somehow, your unique use of […]

Timothy A. Carey “I’ve just finished the Method of Levels, and I’m astonished, delighted, and inspired. I was a psychotherapist for many years, using a variety of approaches (predominantly Gestalt Therapy, several versions of family […]

Philip J. Runkel “I started reading your book to see whatever you have to say about systems. Then I really got fascinated by your book and read it from start to finish. Very impressive! And […]

William T. Powers & Philip J. Runken Throughout this volume, Phil and Bill exchange candid assessments of the players, methods and dominant approaches in psychology and the social sciences, and the difficulties that go with […]

Dag Forssell, Editor The May 2016 edition is now a 424-page book that includes 34 papers with selections from 26 books. Subjects include psychotherapy, management, emotions, baby brain development, computer simulations and tutorials, scientific revolutions, […]

Edited by Warren Mansell First edition – May 16, 2020 The Interdisciplinary Handbook of Perceptual Control Theory brings together the latest research, theory, and applications from W. T. Powers’ Perceptual Control Theory (PCT) that proposes […]

The Study of Living Control Systems, a handbook of research methodology in psychology by Richard S. Marken is available from Cambridge University Press and from booksellers (February 2021).

Martin Taylor Note: This salute to William T. Powers, the creator of Perceptual Control Theory (PCT), was posted to the CSGNet discussion list by Martin Taylor on September 15, 2016 and is posted here with […]

Henry H. Yin (2016) https://journals.sagepub.com/doi/full/10.1177/1073858416654115

Heather C. Bell, Greg D. Bell, […], and Sergio M. Pellis (2015) https://journals.sagepub.com/doi/full/10.1177/1059712315607606

Joseph W. Barter, Suellen Li, Tatyana Sukharnikova, Mark A. Rossi, Ryan A. Bartholomew, and Henry H. Yin (2015) https://www.researchgate.net/profile/Mark-Rossi-5/publication/272165203_Basal_Ganglia_Outputs_Map_Instantaneous_Position_Coordinates_during_Behavior/links/54dcbf590cf25b09b912c829/Basal-Ganglia-Outputs-Map-Instantaneous-Position-Coordinates-during-Behavior.pdf