摘要：The Gestalt psychologists were fascinated with dynamics evident in visual perception, and they theorized
that these dynamics were attributable to ever-changing electrical potentials within topographically
organized brain fields. Dynamic field theory, as it was called, was subsequently discredited on grounds
that the brain does not comprise a unitary electrical field but, instead, a richly interconnected network
of discrete computing elements. Still, this modern conceptualization of brain function faces the
challenge of explaining the fact that perception is dynamic in space and in time. To pursue the question
of visual perception and cortical dynamics, we have focused on spatio-temporal transitions in dominance
during binocular rivalry. We have developed techniques for initiating and measuring these transitions
psychophysically and for measuring their neural concomitants using functional magnetic resonance
imaging (fMRI). Our findings disclose the existence of waves of cortical activity that travel across the
retinotopic maps that define primary and secondary visual areas within occipital cortex, in
correspondence with the subjective perception of spreading waves of dominance during binocular
rivalry. This paper reviews the results from those studies.
关键词：binocular vision, binocular rivalry, visual cortex, fMRI (functional magnetic resonance
imaging), dynamic of neuronal process.
