Top-Down and Bottom-Up: The Illusory Contour as a Microcosm of Issues in Perception

Abstract

Stealth bombers, invisible men, ghosts, phantoms, phantom contours, illusions, Scheinkanten, illusory contours, subjective contours, virtual contours, cog- nitive cont9urs, anomalous contours, contours with- out gradients, 'magini quasi percettivi' (quasi-per- ceptual contours).