Electroencephalographic changes after one night of sleep deprivation.
Total or partial sleep deprivation (SD) causes degrading effects on different cognitive and psychomotor functions that might be related to electrophysiological changes frequently observed. In the present study, we investigated the effects of one night of sleep deprivation on waking EEG. Experimental protocol consisted of recording electroencephalographic data from eleven healthy young subjects before (baseline) and after (time 2) one night of sleep deprivation. A natural log transformation was carried out and showed a significant increase in theta T6 (p=0.041), O2 (p=0.018) and OZ (p=0.028); and delta T6 (p=0.043) relative power; and a decrease in alpha Fp1 (p=0.040), F3 (p=0.013), Fp2 (p=0.033), T4 (p=0.050), T6 (p=0.018), O2 (p=0.011) and Oz (p=0.025) and beta (p=0.022) absolute power. These outcomes show that the EEG power spectra, after sleep deprivation, exhibit site-specific differences in particular frequency bands and corroborate for the premise of local aspects of brain adaptation after sleep deprivation, rather than global.
Ferreira
Camila
C
Laboratório de Mapeamento Cerebral e Integração Sensório-Motora, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rua Delfina 47/104, 20511-270 Rio de Janeiro RJ, Brazil. camilaferreira@libero.it
Deslandes
Andréa
A
Moraes
Helena
H
Cagy
Maurício
M
Pompeu
Fernando
F
Basile
Luis Fernando
LF
Piedade
Roberto
R
Ribeiro
Pedro
P
D000328:Adult; D004569:Electroencephalography; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D012892:Sleep Deprivation / Q000503:physiopathology*; D014851:Wakefulness / Q000502:physiology*