Perception and action are inseparable

In her article, Michaels (2000) defined action as "a temporally bounded, ob servable, goal-directed movement (or non movement) that entails intention, the detection of information, and a lawful relation between that informatio n and the movement" (p 251). She defined perception as "the detection of in formation" (p 244). This forces one to conclude that it is impossible to st udy action separately from perception. We argue that perceptual judgments a re communicated by movements and that it is impossible to distinguish movem ents reporting perceptual judgments from other movements, so we conclude th at the reverse also is true: It is impossible to study perception separatel y from action.