Depersonalization and Basic Symptoms in Schizophrenia

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Abstract
The purpose of this study is to examine the classic psychopathologic notion of depersonalization in the light of the Basic Symptom paradigm. A sample of 57 chronic schizophrenics was cross-sectionally assessed with the Bonn Scale for the Assessment of Basic Symptoms (BSABS) and contextually with specific scales testing positive, negative, depressive and alexithymic dimensions. In order to categorize depersonalized vs. nondepersonalized patients three specific BSABS items explicitly identifying the allo-/auto-/somatopsychic domains of depersonalization were used, according to the wernickian threefold definition. Depersonalized schizophrenics showed a semiological profile that was distinct from that of nondepersonalized schizophrenics (as regards basic, positive, depressive symptoms and alexithymia); patients with multiple co-occurring forms of depersonalization revealed higher levels of cognitive disturbance, lowering of stress threshold and greater alexithymia. Clinical and research implications are discussed.