Transtorno esquizoafetivo is an episodic transtorno in which the diagnostic requirements of Esquizofrenia and a manic, mixed, or moderado or grave depressive episódio are met within the same episódio of illness, either simultaneously or within a few days of each other. Prominent symptoms of Esquizofrenia (e.g. delusions, hallucinations, disorganisation in the form of thought, experiences of influence, passivity and control) are accompanied by typical symptoms of a moderado or grave depressive episódio (e.g. depressed mood, loss of interest, reduced energy), a manic episódio (e.g. an extreme mood state characterised by euphoria, irritability, or expansiveness; increased activity or a subjective experience of increased energy) or a mixed episódio. Psychomotor disturbances, including Catatonia, may be present. Symptoms must have persisted for at least one month. The symptoms are not a manifestation of another medical condition (e.g. a brain tumor) and are not due to the effect of a substance or medication on the central nervous system (e.g. corticosteroids), including abstinência (e.g. alcohol abstinência).