[Incidence and features of the clinical picture of psychoses with an attack-like course].

A comparative epidemiological study was performed in 3 groups of affective psychoses: manic-depressive psychoses (25,8%), periodical schizophrenia (59,5%), and attack-like organic psychoses (14,7%). In the group of endogenous psychoses there was a predominance of females (60% and 61%), while in the group of organic psychoses of males (77%). Psychotic conditions, remissions, late states of organic attack-like psychoses (schizophrenoform, bipolar, depressive) are described.