A Hierarchical Model of Visual Rivalry.
Peter Dayan
Neural Computation, 10, 1119-1136.
Abstract
Binocular rivalry is the alternating percept that can result when
the two eyes see different scenes. Recent psychophysical evidence
supports the notion that some aspects of binocular rivalry bear
functional similarities to other bistable percepts. We build a model
based on the hypothesis (Logothetis & Schall, 1989; Leopold &
Logothetis, 1996; Logothetis, Leopold & Sheinberg, 1996) that
alternation can be generated by competition between top-down
cortical explanations for the inputs, rather than by direct
competition between the inputs. Recent neurophysiological evidence
shows that some binocular neurons are modulated with the changing
percept; others are not, even if they are selective between the
stimuli presented to the eyes. We extend our model to a hierarchy to
address these effects.
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