William T. Powers
The BYTE articles are a book unto themselves
– a four-part introduction to PCT and modeling.
Bill Powers
The Reafference Principle and Control Theory
William T. Powers …small changes convert von Holst’s model into a true negative feedback control system. lf we assume with von Holst that a similar architecture holds at higher levels in the nervous system, we […]
Bill Powers
Bill Powers on Perceptual Control Theory
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 […]
Bill Powers
An Essay on the Obvious
A hard-hitting essay by the creator of PCT on what you see when you look at behavior through the eyes of a physical scientist. […]