Timmermann D L, Lubar J F, Rasey H W, Frederick J A
University of Tennessee, Department of Psychology, Knoxville 37996-0900, USA.
Int J Psychophysiol. 1999 Apr;32(1):55-61. doi: 10.1016/s0167-8760(98)00064-6.
The effects of audio-visual stimulation at the dominant alpha frequency and twice dominant alpha frequency on the EEG were investigated. An eyes-closed baseline EEG determined each subject's dominant alpha frequency. Subjects were stimulated at their dominant alpha frequency and at twice dominant alpha frequency for 20 min on two occasions. A 30-min post-session eyes-closed EEG was recorded after each session. Power data were analyzed for 19 locations in six bandpasses using repeated-measures ANOVAs and appropriate post-hoc tests. Alpha stimulation significantly increased power over baseline levels in the delta 1, delta 2, theta, beta 1 and beta 2, with significant effects remaining 30 min later in beta 1. Twice alpha stimulation significantly increased theta, beta 1 and beta 2 power over baseline levels, with significant effects remaining 30 min later in theta, alpha, beta 1 and beta 2.
研究了以优势α频率和两倍优势α频率进行视听刺激对脑电图（EEG）的影响。通过闭眼基线脑电图确定每个受试者的优势α频率。受试者分别在优势α频率和两倍优势α频率下接受两次20分钟的刺激。每次刺激后记录30分钟的闭眼后脑电图。使用重复测量方差分析和适当的事后检验对六个带通中19个位置的功率数据进行分析。α刺激显著增加了δ1、δ2、θ、β1和β2频段相对于基线水平的功率，β1频段在30分钟后仍有显著影响。两倍α刺激显著增加了θ、β1和β2频段相对于基线水平的功率，θ、α、β1和β2频段在30分钟后仍有显著影响。
