[Disorders in cognition and language vs. communication deviances in families of schizophrenics].

This paper shortly reviews the findings of studies about cognitive and language dysfunctions in schizophrenic patients and their parents. It also presents the main concepts about communication deficits in families of schizophrenics--double bind, communication deviance, egocentric communication, disconfirmatory feedback and some aspects of expressed emotion. The influences and relationships between cognition, language and communication are emphasised. There are also some suggestions about the treatment.