Huupponen Eero, Himanen Sari-Leena, Värri Alpo, Hasan Joel, Lehtokangas Mikko, Saarinen Jukka
Digital and Computer Systems Laboratory, Tampere University of Technology, Finland.
Neuropsychobiology. 2002;45(2):99-105. doi: 10.1159/000048684.
In the present work, gender differences in sleep spindle topography were examined in 40 subjects. Their median age was 32 years (range 22-49 years). Spindles were detected from 3,306,060 s of visually scored stage 2 sleep EEG by a previously validated automatic fuzzy detector at 1-second intervals. A total of 271,168 spindles were found from the six EEG channels analyzed. Females showed a significantly higher percentage of spindles in the left frontal channel than males (Fp1-A2; p = 0.026). To confirm that this difference was gender and not age related, the subjects were divided into two age groups. No significant differences in spindle activity of the frontal channels were found between the groups. However, the interindividual spindle variability seemed to be at least as large as that stemming from gender.
在本研究中，对40名受试者的睡眠纺锤波地形图中的性别差异进行了检查。他们的年龄中位数为32岁（范围为22至49岁）。通过先前验证的自动模糊检测器，以1秒的间隔从3306060秒的视觉评分的第二阶段睡眠脑电图中检测到纺锤波。在所分析的六个脑电图通道中总共发现了271168个纺锤波。女性左额通道中的纺锤波百分比显著高于男性（Fp1 - A2；p = 0.026）。为了确认这种差异与性别而非年龄相关，将受试者分为两个年龄组。两组之间额通道的纺锤波活动未发现显著差异。然而，个体间的纺锤波变异性似乎至少与性别引起的变异性一样大。
