At Temple University some months ago 500 curious but sympathetic medical students and teachers listened to the roaring, buzzing sounds manufactured inside of George Yocum's head. A coal miner, George Yocum had been caught in a rock slide in 1935, suffered an injury to the carotid artery behind his right eye. The artery's weakened wall allowed it to swell out in a sac which was full of pulsing blood. In front, the sac caused the eye to protrude; in back, it throbbed against the skull, wore down the bone. The throbbing produced the noises...
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