Electricity and mental disease In the late 1700s, Italian physician Dr. Luigi Galvani discovered that frog muscles reacted electrically when exposed to certain metals - which led to the notion that nerve pulses are electrical charges. One day, Galvani's cousin, Dr. Giovanni Aldani, convinced French asylums to let him treat hopelessly depressed patients with electricity. By the 1850s, electricity was widely used to treat psychiatric ailments - and would eventually turn into electroconvuls...