A very subtle and seemingly random type of eye movement called ocular drift can be influenced by prior knowledge of the expected visual target, suggesting a surprising level of cognitive control over the eyes, according to a study led by Weill Cornell Medicine neuroscientists.
The discovery, described Apr. 3 in Current Biology, adds to the scientific understanding of how vision — far from being a mere absorption of incoming signals from the retina — is controlled and directed by cognitive processes.
“These eye movements are so tiny that we’re not even conscious of them, and yet our…
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News Source: www.sciencedaily.com