especially: a shallow furrow on the surface of the brain separating adjacent convolutions
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Interestingly, the brain also showed activity in areas related to understanding others and social cognition—such as the posterior superior temporal sulcus and the temporal regions—which might explain why good friendships often involve such a high level of empathy and understanding.—Mark Travers, Forbes, 11 Sep. 2024 Similarly, the region responsible for primary motor sensor, the central sulcus, also showed increased activity that lingered.—Emilie Le Beau Lucchesi, Discover Magazine, 8 Feb. 2022 Researchers have tracked dyscalculia to a fold in the back of the brain known as the intraparietal sulcus, or IPS.—Carlin Flora, Discover Magazine, 19 Nov. 2013 Neuroscientists have found that when people do mathematical intuition problems, a strip of neurons near the top of the brain, surrounding a fold called the intraparietal sulcus, consistently becomes active.—Carl Zimmer, Discover Magazine, 19 Aug. 2014 Indeed, one part of the brain – the superior temporal sulcus – is involved in processing the direction of gazes.—Ed Yong, Discover Magazine, 30 Oct. 2012 In those young and older, the under-eye hollows and pre-jowl sulcus — the indents on either side of the chin — tend to suffer a similar fate.—Jolene Edgar, refinery29.com, 6 Oct. 2021
Word History
Etymology
Latin; akin to Old English sulh plow, Greek holkos furrow, helkein to pull
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