Gestalt Psychology

Köhler's systematic defense of Gestalt psychology — addressing physicists and philosophers as well as psychologists, arguing for isomorphism between brain processes and psychological experience.

The isomorphism thesis: the organized structure of psychological experience corresponds to organized physical processes in the brain — experience and brain are structurally similar. Against elementalism: perception is not the sum of sensory atoms but organized wholes governed by field forces. The Gestalt principles (proximity, similarity, closure, continuity) as laws of perceptual organization. A bridge between Gestalt psychology and physics.