Cognitive therapy with schizophrenic patients: conceptual basis, present state, future directions

Abstract

Schizophrenia may nowadays be most readily understood as a systemic disorder in which changes in the brain structure underlie individual cognitive abnormalities which for their part interact with environmental factors at the onset of the illness and during its course. From this, one may deduce the rationale for cognitive therapy for schizophrenic patients. Existing approaches may be systemised as direct, indirect and combined procedures. The latter are based on the assumption of the pervasive effects of elementary and complex cognitive dysfunctions at the levels of open behaviour. However, in a mirror-design study with 21 schizophrenic patients according to DSM-III-R in which the effects of various intervention sequences were examined, it was not possible to find confirmation for this. This and other open questions have led to doubts expressed in current literature concerning the utility of cognitive therapy, especially with respect to the locus, nature and malleability of cognitive disorders, as well as the possibility of generalizing cognitive improvements. The latter are discussed in detail and possible future directions in cognitive therapy for schizophrenic patients are shown.