title: Spatio-temporal EEG power spectral patterns during a short daytime nap.
abstract: This is an approach to investigate topographic changes in electroencephalographic (EEG) spectral power during pre- and post-nap wakefulness as well as stages 1 (S1) and 2 (S2) NREM sleep in 12 subjects. Delta- and theta-band power significantly increased in the frontal and central regions during S1 and S2 with an increase in inter- and intra-hemispheric correlations. Beta-band power significantly increased in the frontal, central and parietal regions during S2 with an increase in interhemispheric correlation. In contrast, alpha-band power significantly decreased in the parietal-occipital regions during S1 and S2 with a decrease in interhemispheric correlation. Thus, daytime nap modulated spatio-temporal patterns of EEG power spectral patterns in wide scalp regions.
authors: Department of Biocybernetics, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan. luoz@i-mde.tmd.ac.jp
authors: Z
authors: Z
authors: Luo
authors: K
authors: K
authors: Honda
authors: S
authors: S
authors: Inoué
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D002940:Circadian Rhythm / Q000502:physiology*; D004569:Electroencephalography; D004585:Electrooculography; D005260:Female; D005625:Frontal Lobe / Q000502:physiology; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D009778:Occipital Lobe / Q000502:physiology; D010296:Parietal Lobe / Q000502:physiology; D012894:Sleep Stages / Q000502:physiology*; D012895:Sleep, REM / Q000502:physiology; D013702:Temporal Lobe / Q000502:physiology; D013997:Time Factors; D014851:Wakefulness / Q000502:physiology