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

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 Low oxygen in the air can cause spasms in the arteries that supply blood to your visual cortex, the part of your brain responsible for your sight. Brad Stulberg, Outside Online, "What Happens to Your Body When You Climb Everest," 11 June 2018 Neural networks for images detect edges to find the shapes of objects in the image to get a grasp of what's going on—similar to what your visual cortex does. Larry Greenemeier, Scientific American, "So, Umm, Google Duplex’s Chatter Is Not Quite Human," 17 May 2018 Nevertheless, the fact that certain cells do project to specific areas also means that within the visual cortex there are specialized cells that have not yet been identified. Monique Brouillette, WIRED, "New Brain Maps With Unmatched Detail May Change Neuroscience," 8 Apr. 2018 In his case, the amygdala, orbitofrontal cortex, prefrontal cortex and visual cortex as well as the motor, pre-motor and somatosensory regions. Larry Greenemeier, Scientific American, "Marvel Comics Gets Inside the Heads of the Avengers," 21 Aug. 2014 In 2003 a patient known as TN lost his sight after suffering two successive strokes; the visual cortex in his brain was damaged and his vision was totally gone, although the eyes themselves were still healthy. Andrea Gawrylewski, Scientific American, "Your Marvelous Mind," 1 July 2017

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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24 Aug 2018

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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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