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The Catatonia Conundrum: Evidence of Psychomotor Phenomena as a Symptom Dimension in Psychotic Disorders
Schizophrenia Bulletin, 10/05/09

Ungvari GS et al. – Although psychomotor phenomena are an intrinsic feature of acute and especially chronic schizophrenia, they are insufficiently recognized in practice and research but may have significant implications for treatment outcome and neurobiological studies. While devising a separate category of catatonia as a nonspecific syndrome has heuristic value, it may be equally if not more important to re–examine the psychopathological basis for defining psychomotor symptoms as catatonic and to re–establish psychomotor phenomena as a fundamental symptom dimension or criterion for both psychotic and mood disorders.

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