Leonardo’s Brain

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Leonardo’s story continues to compel because he represents the highest excellence all of us lesser mortals strive to achieve — to be intellectually, creatively, and emotionally well-rounded. No other individual in the known history of the human species attained such distinction both in science and art as the hyper-curious, undereducated, illegitimate country boy from Vinci.

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Leonardo’s quirks of penmanship strongly suggest that his two hemispheres were intimately connected in an extraordinary way. The traditional dominance pattern of one hemisphere lording it over the other does not seem to have been operational in Leonardo’s brain. Based on what we can extrapolate from the brains of people who share Leonardo’s ability to mirror-write, the evidence points to the presence of a large corpus callosum that kept each hemisphere well informed as to what the other was doing.

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