Source:http://linkedlifedata.com/resource/umls/id/C0038050
CSP: depression of normal electrical rhythms recorded from cerebral cortex, spreading outward from an area of stimulation or cortical damage; rate of spread closely approximates the visual aura of a migraine.,MSH: The decrease in neuronal activity (related to a decrease in metabolic demand) extending from the site of cortical stimulation. It is believed to be responsible for the decrease in cerebral blood flow that accompanies the aura of MIGRAINE WITH AURA. (Campbell's Psychiatric Dictionary, 8th ed.)