Abstract
CHANGES IN the manner of speech of schizophrenic patients have not yet been systematically investigated. In practice, these changes have always played a role but have been included, without name, under the general heading of schizophrenic impressions or mentioned only in passing when describing schizophrenic behavior. In general, these changes in speech and voice have been classified as catatonic, and they have not been connected in any way with the psychodynamics of schizophrenia. E. Bleuler 1 emphasized the independence of the speech changes in comparison with disturbances of motility. He described unmotivated speed and volume changes: the double voice, a difference in the manner of speaking with hallucinated and with real persons, and the dependence of speech on complexes. More modern authors emphasize the monotony and rigid rhythm,2 the separation of the registers, the incoherences in the melody, "the machine-like precision" and "the increased and decreased changes of

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