James J. Gibson (1904-1979) is one of the most important psychologists of the 20th century, best known for his work on visual perception. He received his Ph.D. from Princeton University and his first major work was The Perception of the Visual World (1950) in which he rejected behaviorism for a view based on his own experimental work.

In his later works, including The Ecological Approach to Visual Perception (1979), Gibson became more philosophical and criticized cognitivism in the same way he had attacked behaviorism before, arguing strongly in favor of direct perception and direct realism, as opposed to cognitivist indirect realism. He termed his new approach "ecological psychology".

Gibson's legacy is increasingly influential on many contemporary movements in psychology, particularly those considered to be post-cognitivist.