ABSTRACT
In this chapter two themes in the recent literature in visual information processing are discussed and illustrated with a selected set of experiments. The first theme is a renewed interest in structural and organizational aspects of visual information. The second theme is the idea that qualitatively different modes of visual information processing can operate on perceptual input. It is argued that these themes represent general concerns in that they cut across a variety of experimental paradigms and seemingly distinct theoretical issues. Furthermore, research reflecting these themes points to the inadequacies of simple models of visual information processing based primarily on the independent extraction of local visual features.
