Gaze-contingent real-time video processing to study natural vision

Abstract

Most of our knowledge about visual performance has been obtained with simple, synthetic stimuli, such as narrowband gratings presented on homogeneous backgrounds, and under steady fixation. The visual input we encounter in the real world, however, is fundamentally different and comprises a very broad distribution of spatio-temporal frequencies, orientations, colours, and contrasts, and eye movements induce strong temporal transients on the retina several times per second.