Jacksonian seizures are associated with a form of
epilepsy. Epilepsy involves abnormal activity in the
brain that can lead to
neurons firing at many times their normal rate. This leads to a kind of electrical "storm" developing in the brain and can lead to temporary impairment to the sensory, motor, and cognitive functions.
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Epilepsy with clonic movements (spasms) in muscles on one side marching systematically through adjacent muscle groups. Named for London neurologist John Hughlings Jackson (1835-1911).