• Zh Vyssh Nerv Deyat+ · Mar 1998

    Comparative Study

    [The characteristics of the spatial organization of the human EEG in ketamine-altered consciousness].

    • N E Sviderskaia, O I Gorbatov, and T A Korol'kova.
    • Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow.
    • Zh Vyssh Nerv Deyat+. 1998 Mar 1; 48 (2): 195-205.

    AbstractSpatial organization of human EEG was studied by means of topographic mapping methods with the multiparametric data estimations in the state altered by ketamine in terms of the concept of coherent structures of brain electrical activity. Two main features of the altered state of consciousness were reflected in the opposite shifts: an increase in the spatial synchronization in the left hemisphere (especially, in the posterior area) and its decrease in the left frontal and right temporal one. The obtained data are discussed from the viewpoint of dissociative effects of ketamine at the neurochemical and neurophysiological levels.

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