Does an epileptic seizure modify the slow brain wave activity? It would have less data due to a smaller sampling rate but still might be necessary to avoid "tot

Does an epileptic seizure modify the slow brain wave activity? It would have less data due to a smaller sampling rate but still might be necessary to avoid "total refresh"? Have we EMPed brains before to see if they lose any prior memories? Afaik, ECT therapy has been despised by many folk for making them forget whole weeks of their pasts. The question is whether the electricity is causing changes or just interrupting existing flow....