Mild hypoxia is associated with quantitative EEG changes, but not with dissociative symptoms

H W Smith, C Kruger, C le Roux, M J van der Linde, H T Groeneveld, P Bartel, F Pretorius

Abstract


Backround and aims. Hypoxia at altitude may lead to mental changes resembling dissociative symptoms. This study examined whether hypoxia precipitates dissociative states in normal subjects and whether quantitative electro- encephalographic (EEG) changes occur.

Methods. Dissociative symptoms and EEG changes were examined in a hypobaric chamber.

Results. No dissociation was noted. EEG slowing accompanied hypoxia, replicating previous findings.


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DOI: http://dx.doi.org/10.4102/sajpsychiatry.v12i2.61

Submitted: 03 March 2008
Published: 01 June 2006




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South African Journal of Psychiatry    |    ISSN: 1608-9685 (PRINT)    |    ISSN: 2078-6786 (ONLINE)