In my practice of holistic mental health care, I encountered a number of unfortunate patients that had had one or more series of electroconvulsant (shock) “therapies” (ECT) , where a series of sub-lethal electrical shocks are administered directly to one or both hemispheres of the brain.
To be regarded as “therapeutic”, enough electricity in this still very controversial procedure (often utilizing up to 400 volts) has to be given to cause a grand mal seizure, which inevitably results in post-seizure coma. Shock to the brain commonly results in memory loss (both short-term and long-term) and the loss of cognitive abilities (both short-term and long-term).