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RESEARCH PRODUCT

The Event Structure of Motion Perception

subject

description

Motion perception on the basis of optic flow is often studied using purely perceptual response paradigms such as forced choice preferences, and using straightforward motor responses such as simple stereotypical reaction times. Here we argue for a more complex perspective that takes into account the event structure of ecological motion perception. In particular, we hope to convince the reader that the would-be perceptual response to a motion stimulus is noticeably modified be the type of response that is required from the actor. We will argue that our actions modify our perception and more precisely, that the planning component of intended actions influence processing of time critical motion. To make our argument, we first discuss action-perception interactions as well as time-to-contact (TTC) judgments. Then we present some experimental evidence.