Convulsion-free therapy (MECT) MECT is the abbreviation for multiparametric monitored convulsion-free electroconvulsive therapy, which is a method of physical therapy commonly used in psychiatry. Its principle is to stimulate by appropriate amount of pulsed current, which is a wide range of cortical discharge, prompting a series of physiological changes in brain cells in response to achieve the purpose of treatment. The indications for tic-free treatment (MECT) are: 1, depression. 2. Schizophrenia with a state of mute or submute, muteness, defiance, refusal of food or medication, or those with severe negativity, self-injury, suicide attempts and behaviors. 3.Schizophrenia, mania, etc. in a state of excitement and agitation, impulsive injury to others. 4.Persons with obvious hallucinations and delusions. 5.Other patients such as paranoid psychosis or epileptic psychosis with aggressive behavior, negative perceptions or behaviors, etc.