Epileptic seizures are often preceded by auras, which patients experience in many ways: visual disturbances, butterflies in the stomach, or even déjà vu. An aura can reveal which part of the brain is spawning a seizure, but multiple auras in a person have heretofore offered little guidance to doctors.
A new study finds, however, that multiple auras tend to originate in the right hemisphere of the brain, often from an identifiable starting point.
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