[Research into premorbid personality in psychiatry in German-speaking countries: the last 3 decades].

The empirical research in premorbid personality of psychiatric patients has markedly advanced in German speaking countries since adequate research methods were introduced in the middle of the sixties. Among the various results are the following: Kretschmer's typological conception of human constitution were largely refuted and replaced by other conceptions on a methodologically more solid ground; Tellenbach's concept of the "melancholic type" as the premorbid structure of the majority of patients suffering from a unipolar affective disorder with melancholic features could be convincingly validated; this concept was supplemented by that of the "manic type" of personality as the premorbid correlate of the amount of a predisposition to manic episodes within the course of an affective disorder; the premorbid deviations of personality in schizophrenics and neurotics were shown to possess little nosological specificity; furthermore, similar deviations could be demonstrated in the personality of (still healthy) relatives of patients with severe mental disorders; the complex relationships of (premorbid) personality, personality disorders and mental disorders were partly clarified.