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  • Title: Analysis of the human sleep electroencephalogram by the correlation dimension.
    Author: Kobayashi T, Madokoro S, Ota T, Ihara H, Umezawa Y, Murayama J, Kosaka H, Misaki K, Nakagawa H.
    Journal: Psychiatry Clin Neurosci; 2000 Jun; 54(3):278-9. PubMed ID: 11186076.
    Abstract:
    Sleep electroencephalograms (EEG) of healthy male subjects were analyzed by the correlation dimension. The mean correlation dimensions significantly decreased from stage 'awake' to stages 1, 2 and 3 and increased during rapid eye movement sleep. The mean correlation dimensions of the sleep EEG in the second half of the night were significantly higher than those in the first half of the night. These significant changes were also seen during sleep stage 2.
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