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Post by healthy11 on Oct 7, 2020 22:05:28 GMT -5
getpocket.com/explore/item/the-unique-science-of-left-handedness A portion of the article says, "Despite a 2014 plea to start studying lefties more extensively, little progress has been made....But we do know some things. Notably, the brains of lefties tend to use broader swaths of the cortex for different tasks. While righties use just one of their brain’s hemispheres to remember specific events or process language, these brain functions are spread out across both hemispheres in lefties. This may make left-handed people more resilient to strokes or other conditions that damage specific brain regions. If a righty has the small part of their brain responsible for language taken out by a stroke, then that’s that. But because lefties use more of their brain for these tasks, it’s like they have a built-in backup. This widespread brain activation may make southpaws more susceptible to conditions like ADHD and schizophrenia, in which unregulated, heightened activity across multiple regions of the brain causes problems...."
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Post by healthy11 on Nov 20, 2021 20:29:53 GMT -5
www.webmd.com/brain/ss/slideshow-left-handed-vs-rightAmong other things, it says, "Scientists have long known that handedness is partly shaped by genes. But it wasn’t until 2019 that they identified differences in parts of the DNA of left- and right-handers. The study, which also analyzed brain scans of 9,000 British subjects, found that in lefties, the parts of the right and left sides of the brain that process language work in better tandem...."
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Post by healthy11 on Aug 14, 2022 17:26:43 GMT -5
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