Abstract：
:Recent studies have compared default-mode network (DMN) connectivity in different arousal levels to investigate the relationship between consciousness and DMN. The comparison between the DMN in rapid eye movement (REM) sleep with that in non-REM (NREM) sleep is useful for revealing the relationship between arousal level and DMN, because the arousal level is at its lowest during deep NREM, while during REM sleep it is as high as wakefulness. Functional magnetic resonance imaging (fMRI) and polysomnogram data were acquired from participants in REM, deep NREM, and light NREM sleep, and the DMN was compared using functional connectivity analysis. Our analysis revealed that functional connectivity among the DMN core regions - the posterior cingulate cortex, rostral anterior cingulate cortex, and inferior parietal lobule - remained consistent across sleep states. In contrast, connectivity involving the DMN subsystems of REM sleep differs from that of NREM sleep, and the change well accounts for the characteristics of REM sleep. Our results suggest that both the DMN core region and subsystems may not relate to the maintenance of arousal. The DMN core network and subsystems may respectively serve to integrate brain regions and perform function specific to each level of arousal.
journal_name
Neurosci Resjournal_title
Neuroscience researchauthors
Koike T,Kan S,Misaki M,Miyauchi Sdoi
10.1016/j.neures.2010.12.018subject
Has Abstractpub_date
2011-04-01 00:00:00pages
322-30issue
4eissn
0168-0102issn
1872-8111pii
S0168-0102(11)00004-6journal_volume
69pub_type
杂志文章abstract：:Using high resolution spectral methods to uncover neuromarkers of social, cognitive and behavioral function, we have found that hemi-lateralized pairs of oscillations such as left and right occipital alpha or left and right rolandic mu dissociate spectrally. That is, they show a shifted frequency distribution, with on...
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journal_title：Neuroscience research
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pub_type： 杂志文章,评审
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pub_type： 杂志文章,评审
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journal_title：Neuroscience research
pub_type： 杂志文章,评审
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pub_type： 杂志文章
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更新日期：2009-02-01 00:00:00
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journal_title：Neuroscience research
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journal_title：Neuroscience research
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journal_title：Neuroscience research
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更新日期：2014-07-01 00:00:00
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journal_title：Neuroscience research
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journal_title：Neuroscience research
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更新日期：1999-03-01 00:00:00
