Bartley Madden has spent decades working on a question central to business: why do firms succeed or fail at creating value over the long term? His answer, the Pragmatic Theory of the Firm (PTF), places […]
John Richards and Ernst von Glasersfeld Summary This paper explicates a Constructivist Epistemology which underlies cybernetic models of perceiving and knowing. We focus on the recent work of W. T. Powers (Behavior: The Control of […]
36th IAPCT Conference – York, UK | October 7-10, 2026 + MOL practitioners meeting, October 12+13, near Manchester Welcome to the 36th IAPCT Conference and Annual Meeting, held near the historic city of York, UK, […]
Welcome to the Control Loop – the IAPCT newsletter. This newsletter shares updates on the latest developments in Perceptual Control Theory about every 2 months, and is skillfully put together by Hugo Cristo Sant’Anna, one […]
Join us for the International Conference on Perceptual Control Theory (PCT) from November 13-15, 2024, with an additional annual meeting for IAPCT members & enthusiasts on November 18. This hybrid event offers both online and face-to-face programming in Perth, Australia, featuring a diverse range of speakers and topics. […]
Quick links on Computational Models:
The following is from Richard S. Marken: Dr. David M. Goldstein, an early and enthusiastic supporter of PCT– his support began in 1980 – passed away on October 5, 2022. David was a colleague of […]
Martin M. Taylor (1995) Fitting data to models, Presentation to CSG 2005
Martin Taylor (1993) OCR from scan of South African Journal of Psychology, 1973, 3, 23-45 M.M.TAYLOR. DCIEM, Box 2000, Downsview, Ontario ABSTRACT In J. G. Taylor’s Behavioural Theory of Perception there is a problem in […]
Robert Griffiths, Vyv Huddy, Stuart Eaton, Jasmine Waldorf, Warren Mansell ABSTRACT This book considers how principles derived from a theory of human behaviour – Perceptual Control Theory – can be configured to create mental health […]
Martin Taylor (1992) Principles for intelligent human-computer interaction: a tutorial on layered protocol theory., DCIEM Report 93-32, Dept. Nat. Defence Canada.
Martin Taylor (2005) In a 2005 presentation to the CSGnet Annual Meeting, I argued that protocols and collective control allow for the creation of organisations that are control systems, complete and entire, with people as […]
Pre-Conference. Buenos Aires, October 7th. In Spanish Pre-Conference Schedule Conference Schedule
Samuel Bagno ©1955 IRE (now IEEE). Reprinted, with permission, from IRE Convention Record, 1955 Part 4 “Computers, Information Theory, Automatic Control.This material is posted here with permission of the IEEE. Internal or personal use of […]
IAPCT board members Eva de Hullu Open Universiteit. The Netherlands IAPCT PRESIDENT As assistant professor in the department of clinical psychology at the Open University in the Netherlands, I teach students therapeutic skills, heavily informed […]
Maurice Martin Taylor died in the afternoon of Friday 17 March 2023, after several months of terminal illness. His 87th birthday was nine months prior, on 14 June 2022. By temperament and by education Martin […]
Hugh Petrie was a friend and supporter in his positions at Northwestern University, the University of Illinois, and the University of Buffalo, where he was Dean of the School of Education. Bill Powers dedicated Behavior: The […]
Bill’s sister Alice died on 5/22/22 at age 92. I think she might have been amused at the numerical alliteration. Her big brother Bill (1926-2013) was three years older. Her daughter Barbara writes, “Alice ran […]
Dick Robertson died on 24 March 2022. His son, Eric, wrote to us “in addition to believing in and supporting the work of the Control Systems Group, my Father greatly appreciated and valued the collaboration […]
[The following is from Barbara Powers (Bara).] My sister, Alison Mary Powers (Allie) of Lafayette, CO (formerly of Northbrook, IL) passed peacefully in the early hours of January 31, 2021. After a years-long battle with […]
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