Summary : Direct theory of perception Gibson's theory has generated a lot of discussion with indirect theories of perception. But how do representatives of these theories evaluate Gibson's ecological approach? In this article an attempt is made to provide an answer to this question. The very diverse reactions are split up into two large groups: Criticisms and reconciliation attempts. The criticisms stress the need for compulational and representational processes. Four kinds of reconciliation attempts are distinguished: (1) Changing stimulus patterns and decoding principles, (2) direct information pickup as part of a perceptual cycle, (3) not all perception is direct, and (4) direct perception as preattentive processing. Key-words : direct p...