一夜睡眠剥夺后的脑电图变化。

Electroencephalographic changes after one night of sleep deprivation.

作者信息

Ferreira Camila, Deslandes Andréa, Moraes Helena, Cagy Maurício, Pompeu Fernando, Basile Luis Fernando, Piedade Roberto, Ribeiro Pedro

机构信息

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.

出版信息

Arq Neuropsiquiatr. 2006 Jun;64(2B):388-93. doi: 10.1590/s0004-282x2006000300007.

DOI:10.1590/s0004-282x2006000300007

PMID:16917606

Abstract

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.

摘要

全部或部分睡眠剥夺（SD）会对不同的认知和心理运动功能产生不良影响，这些影响可能与经常观察到的电生理变化有关。在本研究中，我们调查了一晚睡眠剥夺对清醒脑电图（EEG）的影响。实验方案包括在11名健康年轻受试者一晚睡眠剥夺之前（基线）和之后（时间2）记录脑电图数据。进行了自然对数转换，结果显示θ波在T6（p = 0.041）、O2（p = 0.018）和OZ（p = 0.028）导联；δ波在T6（p = 0.043）导联的相对功率显著增加；而α波在Fp1（p = 0.040）、F3（p = 0.013）、Fp2（p = 0.033）、T4（p = 0.050）、T6（p = 0.018）、O2（p = 0.011）和Oz（p = 0.025）导联以及β波（p = 0.022）的绝对功率降低。这些结果表明，睡眠剥夺后EEG功率谱在特定频段表现出部位特异性差异，支持了睡眠剥夺后大脑适应性局部而非整体方面的前提。