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dementia praecox


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Schizophrenia. No longer in scientific use.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. schizophrenia

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of several psychotic disorders characterized by distortions of reality and disturbances of thought and language and withdrawal from social contact


New Latin dēmentia praecox : Latin dēmentia, dementia + Latin praecox, premature.
(American Heritage® Dictionary of the English Language, Fourth Edition)
This definition is lacking an etymology or has an incomplete etymology. You can help Wiktionary by giving it a proper etymology. (Wiktionary)


  • MOST psychiatrists state or tacitly assume that dementia praecox is a disease of a steadily progressive nature, where the first symptom of dementia is a signal for relentless degradation of the patient's mental capacity except in the sphere of the more mechanical, intellectual functions.

    The Journal of Abnormal Psychology

  • On the other hand it is an every day experience that a dementia praecox patient may show no scattering when conversing on indifferent subjects but that his train of thought loses logical sequence when he launches into his ideas.

    The Journal of Abnormal Psychology

  • The question remains open whether the case should be regarded as defective or as belonging to the dementia praecox group.

    The Journal of Abnormal Psychology

  • To sum up: We have endeavored to establish the claim that delusions in dementia praecox which takes the form of objective speculations rather than subjective experiences are an evidence of a milder psychotic reaction and hence warrant a prognosis of chronicity rather than deterioration.

    The Journal of Abnormal Psychology

  • And all gradations from pure paranoia to dementia praecox seem to have corresponding losses in the sense of reality as embodied in delusions.

    The Journal of Abnormal Psychology

  • Moreover, by choosing for analysis a case which was neither dementia praecox nor paranoia but a combination of the two, he reaches conclusions which are valuable additions to our knowledge of psychotic processes but merely confuse the issue as to the specific mechanisms of paranoia and dementia praecox.

    The Journal of Abnormal Psychology

  • Kraepelin has split off from dementia praecox a separate psychosis -- Paraphrenia systematica -- which he timidly defends as a clinical entity apparently because the course is a long one and the deterioration less marked than in dementia praecox.

    The Journal of Abnormal Psychology

  • The mental condition of ticquers is especially characterized by the imperfection or weakness of volition, by a certain degree of mental instability and lack of inhibitory control of the desires, tendencies, activities and motor expressions of the individual, this defect laying the groundwork for the impulsions and obsessions, as also for hysterical, so-called neurasthenic, hypochondriacal, depressive and so-called dementia praecox reactions.

    The Journal of Abnormal Psychology


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