Electroencephalographic changes after one nigth of sleep deprivation

Arquivos de Neuro-Psiquiatria

Camila Ferreira²  Andréa Deslandes²  Helena Moraes²  Maurício Cagy¹  Fernando Pompeu¹  Luis Fernando Basile¹  Roberto Piedade²  Pedro Ribeiro² 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Psiquiatria Laboratório de Mapeamento Cerebral e Integração Sensório-Motora,Brasil

关键词: sleep deprivation;    qEEG;    power spectral analysis;    cortical activity;    privação de sono;    qEEG;    análise do espectro de potência;    atividade cortical;   

DOI  :  10.1590/S0004-282X2006000300007

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License