ABSTRACT

Perceiving is the basis for the practical success of everyday behavior. The information hypothesis that distinguishes a perceptual theory as a theory of direct perception does not imply that application of Isaac Newton’s formalism would fail to identify any internal states in an instance of direct perceiving. From the perspective of the student of perception and action, combining activity with perception-as-indirect would seem to create a dilemma. There is a great deal of psychology implied in a theory of indirect perception and the question should be raised as to what becomes of this psychology in a theory of direct perception. The psychology implied in a theory of indirect perception is primarily in the form of internal states of O. Clearly, therefore, what makes a theory of perception a theory of direct perception is not the assertion that there are things that can be directly perceived.