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Decoupling of the brain's default mode network during deep sleep

Horovitz, Silvina G ; Braun, Allen R ; Carr, Walter S ; Picchioni, Dante ; Balkin, Thomas J ; Fukunaga, Masaki ; Duyn, Jeff H

Proceedings of the National Academy of Sciences - PNAS, 2009-07, Vol.106 (27), p.11376-11381 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Decoupling of the brain's default mode network during deep sleep
Autor: Horovitz, Silvina G ; Braun, Allen R ; Carr, Walter S ; Picchioni, Dante ; Balkin, Thomas J ; Fukunaga, Masaki ; Duyn, Jeff H
Assuntos: Adult ; Anatomy ; Behavior ; Biological Sciences ; Brain ; Brain - physiology ; Brain Mapping ; Complex systems ; Connectivity ; Consciousness ; Correlation analysis ; Correlations ; Electrodes ; Electroencephalography ; Female ; Humans ; Imaging ; Magnetic Resonance Imaging ; Male ; Nerve Net - physiology ; NMR ; Nuclear magnetic resonance ; Oxygen - blood ; Primates ; Rest - physiology ; Sleep ; Sleep - physiology ; Time Factors ; Wakefulness - physiology
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2009-07, Vol.106 (27), p.11376-11381
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Author contributions: S.G.H., A.R.B., W.S.C., D.P., T.J.B., M.F., and J.H.D. designed research; S.G.H., A.R.B., W.S.C., and D.P. performed research; S.G.H. and M.F. contributed new reagents/analytic tools; S.G.H., D.P., and M.F. analyzed data; and S.G.H., A.R.B., W.S.C., D.P., T.J.B., M.F., and J.H.D. wrote the paper.
Edited by Leslie G. Ungerleider, National Institute of Health, Bethesda, MD, and approved May 7, 2009
Descrição: The recent discovery of a circuit of brain regions that is highly active in the absence of overt behavior has led to a quest for revealing the possible function of this so-called default-mode network (DMN). A very recent study, finding similarities in awake humans and anesthetized primates, has suggested that DMN activity might not simply reflect ongoing conscious mentation but rather a more general form of network dynamics typical of complex systems. Here, by performing functional MRI in humans, it is shown that a natural, sleep-induced reduction of consciousness is reflected in altered correlation between DMN network components, most notably a reduced involvement of frontal cortex. This suggests that DMN may play an important role in the sustenance of conscious awareness.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Decoupling of the brain's default mode network during deep sleep

Horovitz, Silvina G ; Braun, Allen R ; Carr, Walter S ; Picchioni, Dante ; Balkin, Thomas J ; Fukunaga, Masaki ; Duyn, Jeff H

United States: National Academy of Sciences

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