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In The 18th-Century Granz Josef Gall

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“Seven Thousand years ago, people thought that when someone had a psychological problem it was caused by evil spirits. Ancient healers would chip a hole into the person’s skull through a procedure called trephining with crude instruments to allow those spirits to escape from the person’s body.” (Feldman, 2015) “In the 17th -century philosopher Rene’ Descartes he believed that nerves were hollow tubes through which animal spirits conducted impulses just like water running through a pipe. In the 18th-century Granz Josef Gall his theory of the shape and number of bumps on your skull that a trained person could recognize the intelligence, moral character, and other personality characteristics.” (Feldman, 2015)

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