ABSTRACT
Schizophrenia studies based on biomedical, genetic, individual psychological, interactional psychological, and social approaches have all provided findings that should be taken into account when trying to analyse the pathogenesis and nature of schizophrenia. The need for comprehensive thinking seems obvious. The most dramatic evidence for the fundamental significance of interactional relations for human personality development comes from the observations on children who have grown up wild, without any human contact, surviving under animal care in a warm climate. The role of predisposing hereditary factors in the aetiology of schizophrenia has been clearly verified by research, but it has proved to be relative. The significance of non-manifested genotypes can be approached also by analysing the incidence of schizophrenia among the off-spring of identical twins discordant for schizophrenia. Some researchers have postulated that a part of schizophrenia would be caused by genetic factors, and another group would be related to brain damage.
