EEG alpha power and alpha power asymmetry in sleep and wakefulness
EEG alpha power and alpha power asymmetry in sleep and wakefulness
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DOI：
10.1017/s0048577299971895
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发表时间：
1999-07-01
期刊：
影响因子：
3.7
通讯作者：
Davidson, RJ
中科院分区：
文献类型：
--
作者：
Benca, RM;Obermeyer, WH;Davidson, RJ
清醒脑电(EEC)额区阿尔法功率的不对称性与清醒时的情绪反应性和梦境报告的情绪内容相关。人们对睡眠中的阿尔法不对称知之甚少。这项研究是为了比较睡眠和清醒状态下大脑不同区域的阿尔法能量和阿尔法能量的不对称性。对一组接受多导睡眠图评估的患者进行觉醒和睡眠脑电记录，以确定可能存在的睡眠障碍。在清醒和睡眠中，额叶和颞区的阿尔法脑电不对称性显著相关，特别是在快速眼动(REM)睡眠期间。这些结果表明，额叶阿尔法不对称的模式在睡眠和清醒过程中是稳定的，可能与做梦时的情绪反应有关。在睡眠期间，阿尔法能量在慢波睡眠中最高，在快速眼动睡眠中最低。这些数据的含义是为了理解阿尔法能量在清醒和睡眠中的功能意义。
Asymmetry of waking electroencephalography (EEC) alpha power in frontal regions has been correlated with waking emotional reactivity and the emotional content of dream reports. Little is known regarding alpha asymmetry during sleep. The present study was performed to compare alpha power and alpha power asymmetry in various brain regions across states of sleep and wakefulness. Waking and sleep EEG were recorded in a group of patients undergoing polysomnographic evaluation for possible sleep disorders. Alpha EEG asymmetry in frontal and temporal regions was significantly correlated in waking versus sleep, particularly during rapid eye movement (REM) sleep. These results suggest that patterns of frontal alpha asymmetry are stable across sleep and waking and may be related to emotional reactivity during dreaming. During sleep, alpha power was highest during slow-wave sleep and lowest during REM sleep. Implications of these data for understanding the functional significance of alpha power during waking and sleeping are considered.