急性轻中度缺氧EEG信号的复杂度研究

Using Complexity-Measure to Study the EEG Signals of Acute Altitude Hypoxia

建立了一个急性高空缺氧实验模型,记录了四种不同高度条件下从缺氧前(正常呼吸)到缺氧后30分钟时的EEG,分析了其复杂度。发现缺氧引起复杂度明显变化,随时间和高度增加,一定程度缺氧可使EEG复杂度低于正常。表明EEG复杂度对脑缺氧较为敏感,可用于缺氧程度进行评估,有望成为临床诊断的一个指标。

In this paper, a model for acute altitude hypoxia experiment is presented. The EEGs in the condition of four heights and from before the hypoxia to 30 minutes after the hypoxia are recorded. The complexities of these EEG signals are analyzed. The results demonstrate that the complexity of EEG is sensitive to the hypoxia,and can be regarded as a feature clasifying the hypoxia EEG and normal persons'EEG.