| Literature DB >> 11113301 |
L A Finelli1, H Baumann, A A Borbély, P Achermann.
Abstract
To investigate the relationship between markers of sleep homeostasis during waking and sleep, the electroencephalogram of eight young males was recorded intermittently during a 40-h waking episode, as well as during baseline and recovery sleep. In the course of extended waking, spectral power of the electroencephalogram in the 5-8Hz band (theta activity) increased. In non-rapid eye movement sleep, power in the 0.75-4.5Hz band (slow-wave activity) was enhanced in the recovery night relative to baseline. Comparison of individual records revealed a positive correlation between the rise rate of theta activity during waking and the increase in slow-wave activity in the first non-rapid eye movement sleep episode. A topographic analysis based on 27 derivations showed that both effects were largest in frontal areas. From these results, we suggest that theta activity in waking and slow-wave activity in sleep are markers of a common homeostatic sleep process.Entities:
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Year: 2000 PMID： 11113301 DOI： 10.1016/s0306-4522(00)00409-7
Source DB: PubMed Journal: Neuroscience ISSN： 0306-4522 Impact factor: 3.590