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Abstract:
Abstract: Visual perception seems effortless, but
psychophysical experiments show that the brain is severely limited
in the amount of visual information it can process at any moment in
time. Several lines of evidence, including single-unit recording
experiments, lesion experiments, fMRI, visual psychophysics and
computer modeling suggest the selection of behaviorally relevant
visual information arises from the resolution of competitive
interactions within the cortex. This competition appears to occur
at multiple stages of visual processing beginning at least as early
as area V2 in the monkey, and in higher order areas in both the
ventral and dorsal streams.
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