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Andreas Marneros, Martin-Luther University Halle-Wittenberg Halle Germany,
Stephan Röttig, Martin-Luther University Halle-Wittenberg Halle Germany,
Andrea Wenzel, Martin-Luther University Halle-Wittenberg Halle Germany,
Raffaela Blöink, Martin-Luther University Halle-Wittenberg Halle Germany,
Peter Brieger, Martin-Luther University Halle-Wittenberg Halle Germany
The paradox of the extremely rare research on schizoaffective mixed states can be better understood when one considers the development of the definitions, concepts, and nosological allocations of schizoaffective disorders. In Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), schizoaffective disorders belonged to the category "other psychotic disorders" with almost the same diagnostic criteria and the same subtypes as in DSM-III-R. In the Tenth Revision of the International Classification of Diseases (ICD-10), schizoaffective disorders landed in a category of their own within schizophrenia and delusional disorders, with five subcategories: schizoaffective disorders, at the present manic, schizoaffective disorders, at the present depressive, mixed schizoaffective disorder, other schizoaffective disorders, and schizoaffective disorders not otherwise specified. The age at onset is lower, the duration of schizoaffective mixed episodes can be longer, and the patients having schizoaffective mixed episodes exhibited more inability to work at a younger age.
This chapter longitudinally compares patients diagnosed as having acute and transient psychotic disorder (ATPD) from the Halle Study on Brief and Acute Psychotic Disorder (HASBAP) with patients diagnosed as having affective or schizoaffective mixed states belonging to the Halle Bipolarity Longitudinal Study (HABILOS) group. The distinction between "abrupt" and "acute" onset is recommended because there is some evidence that the prognosis of ATPD with abrupt onset could be more favorable. The most essential predecessors of ATPD are cycloid psychosis and bouffée délirante, which show relevant similarities to the subgroup of ATPD "acute polymorphic psychotic disorders". The anxiety-happiness psychosis is characterized by continuous changing between severe all-pervasive anxiety and ecstatic happiness. Anxiety is often associated with delusions and hallucinations. The main characteristic of the hyperkinetic-akinetic motility psychosis is a disturbance of motility. Cycloid psychoses are bipolar disorders, but differ from manic-depressive illness.
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