Electroconvulsive therapy (ECT) was invented in Italy in the late 1930s. ECT is a medical treatment most commonly used in patients with severe major depression or bipolar disorder that has not responded to other treatments. Psychiatrists had already discovered that inducing seizures could relieve symptoms of mental illness. Before ECT, this was done with the use of chemicals, usually one called Metrazol. More can be read here: http://theconversation.com/electroconvulsive-therapy-a-history-of-controversy-but-also-of-help-70938 This machine was used both at Aradale Mental Hospital and J Ward. The object is significant because it is a well preserved instrument that illustrates the medical apparatus used at both Ararat Mental Hospital and J Ward for the treatment of mental illness.A metal instrument. The front contains three knobs, two switches, and power button. Two fully intact electrical cords - One leads to the paddles used on the patient: One used to attach to the electric source [power point]. Paddles are made of hard plastic and stainless steel metal. The back has a compartment where the paddles can be stored. The top has a carry handle.Manufacturer: Siemens Power supply: 220V 85AC, 50Hzmentalhealth, psychiatrichealth, depression, #bipolardisorder