cortical march

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the progression of electrical activity through the motor cortex.
cortical march (epileptic march) (jacksonian march) the spread of abnormal electrical activity from one area of the cerebral cortex to adjacent areas, characteristic of jacksonian epilepsy.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.