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Origin and Mechanisms of Hallucinations pp 71–92Cite as

Changes in Digital Computer Analyzed EEG During “Dreams” and Experimentally Induced Hallucinations

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Abstract

Although changes in the total psychopathology, including enhancement of thought disorders, disturbance of perceptual phenomena, anxiety, and agitation, have been correlated with alterations in the EEG pattern; there has been no significant evidence presented concerning the relationship between the “typical” electroencephalogra-phical pattern and hallucinations. In previous studies we have found that in patients with a pre-treatment EEG containing low voltage fast activity, improvement of hallucinations and paranoid delusions could be related to an increase in the “alpha index” [ll,12], Also, an increase in the psychopathology of a single subject or of a group of psychiatric patients could often be related to an increase of beta activity. However, the study of hallucinations from the EEG point of view presents two problems: (l) It is very difficult to study hallucinations during spontaneous psychosis because the appearance, increase, or decrease of hallucinations as a single symptom is extremely rare. Hallucinations are usually observed in association with various psychotic symptoms, making objective and quantitative evaluation an almost impossible task.

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Authors and Affiliations

  1. Department of Psychiatry, University of Missouri, St. Louis, Missouri, USA

    T. M. Itil

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  1. T. M. Itil
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Editor information

Editors and Affiliations

  1. Research Institute, Brooklyn State Hospital, 681 Clarkson Avenue, 11203, Brooklyn, N.Y., USA

    Wolfram Keup M.D. (Director of Research, Associate Cinical Professor of Psychiatry,Speaker and EPRA Program Chairman and President Elect.) (Director of Research, Associate Cinical Professor of Psychiatry,Speaker and EPRA Program Chairman and President Elect.)

  2. Department of Psychiatry, State University of New York, Downstate Medical Center, College of Medicine, Brooklyn, New York, USA

    Wolfram Keup M.D. (Director of Research, Associate Cinical Professor of Psychiatry,Speaker and EPRA Program Chairman and President Elect.) (Director of Research, Associate Cinical Professor of Psychiatry,Speaker and EPRA Program Chairman and President Elect.)

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© 1970 Springer Science+Business Media New York

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Itil, T.M. (1970). Changes in Digital Computer Analyzed EEG During “Dreams” and Experimentally Induced Hallucinations. In: Keup, W. (eds) Origin and Mechanisms of Hallucinations. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8645-6_7

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  • DOI: https://doi.org/10.1007/978-1-4615-8645-6_7

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4615-8647-0

  • Online ISBN: 978-1-4615-8645-6

  • eBook Packages: Springer Book Archive

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