visual cortex

noun

Definition of visual cortex

: a sensory area of the occipital lobe of the cerebral cortex receiving afferent nerve fibers concerned with vision

called also visual area

Examples of visual cortex in a Sentence

Recent Examples on the Web

The visual cortex is one of the brain's most complex mechanisms, comprised of hundreds of millions of neurons. David Grossman, Popular Mechanics, "Study: If You Played Pokémon As a Kid, You Have Pokémon Brain As an Adult," 14 June 2019 Two teams, however, have recently adapted optogenetics—a technology for stimulating neurons with light—to precisely awaken particular cells in the visual cortex of a mouse. Kelly Servick, Science | AAAS, "Laser holograms stimulate brain cells in mice to probe roots of perception and hallucination," 18 July 2019 Some neurons in the visual cortex, for instance, respond to the edges of objects in view; others fire to indicate the objects’ orientation, coloring or shading. Quanta Magazine, "To Make Sense of the Present, Brains May Predict the Future," 10 July 2018 The neuroscientists came across these new neurons while conducting a census of brain cells in adult mice in a part of the brain called the the primary visual cortex, an area chiefly concerned with sight. William Herkewitz, Popular Mechanics, "We Just Discovered 6 New Kinds of Brain Cells," 26 Nov. 2015 In their study, Jiang and his colleagues meticulously surveyed 11,000 neurons in three layers of the primary visual cortex in adult mice. William Herkewitz, Popular Mechanics, "We Just Discovered 6 New Kinds of Brain Cells," 26 Nov. 2015 Curiously, the primary visual cortex that receives and passes on the information streaming up from the eyes does not signal what the subject sees. Christof Koch, Scientific American, "What Is Consciousness?," 8 May 2018 So there’s a lot of neuroscience about how vision works and how the eye and retina and visual cortex work, but none of that says anything about the conscious experience of seeing. Angela Chen, The Verge, "A neuroscientist explains why we need better ways to talk about emotions," 6 July 2018 The key is a structure called the lunate sulcus, which is part of the primary visual cortex. Kiona N. Smith, Ars Technica, "Homo naledi’s brain: Like ours, but smaller," 14 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'visual cortex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of visual cortex

1954, in the meaning defined above

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Last Updated

10 Aug 2019

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The first known use of visual cortex was in 1954

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More Definitions for visual cortex

visual cortex

noun

Medical Definition of visual cortex

: a sensory area of the occipital lobe of the cerebral cortex receiving afferent projection fibers concerned with the sense of sight

called also visual area

More from Merriam-Webster on visual cortex

Britannica.com: Encyclopedia article about visual cortex

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