Ma Liang, Chinese Medicine Psychiatry Department, Chaoyang District Hospital, Beijing, China: Acute, short, obvious, acute, brief, typical is journey psychosis, rapid onset and remission. Most of them have recent obvious physical or psychological factors, such as exertion, threats, etc. The manifestation appears to be “mental confusion”, that is, the confusion is more obvious, with emotional tension and behavioral confusion. The total duration of the illness rarely exceeds several weeks, and some of them are just a few hours to a few days. After recovery, maintenance medication is usually not needed, or brief maintenance medication is sufficient. In schizophrenia, the symptoms of schizophrenia are sufficient, but the total duration of each episode (from the onset of symptoms to the time of recovery) is less than 1 month, and maintenance treatment for schizophrenia is required.