测控技术2025，Vol.44Issue(11)：51-61,11.DOI:10.19708/j.ckjs.2025.10.257
主动精神疲劳与脑血氧矢量相位特征关联研究
Research on Correlation Between Active Mental Fatigue and Cerebral Blood Oxygen Vector-Phase Characteristics
摘要
Abstract
Active mental fatigue detection based on cerebral blood oxygen signals is convenient to implement in real environments,which is of great significance for ensuring the safety of personnel in aerospace and other fields.To further explore the correlation between cerebral blood oxygen signals and active mental fatigue,12 novel vector-phase features based on vector-phase analysis(VPA)method are proposed,and tested on the self-constructed dataset of frontal cerebral blood oxygen active mental fatigue to analyze the significant differences in features and the correlation coefficients between features and fatigue levels under different levels of fatigue.The results show that all proposed new vector phase features are sensitive to active mental fatigue,and the fea-ture based on phase angle index has the highest correlation with fatigue level,with a correlation coefficient of o-ver 0.9.In addition,cerebral oxygen exchange features display differing trends between the medial and lateral frontal areas,while vector magnitude features vary between the left and right frontal regions,indicating distinct activation patterns within the frontal cortex.It demonstrates that VPA method is a viable method for detecting active mental fatigue and holds potential for developing highly accurate algorithms and advancing theoretical re-search in brain function.关键词
主动精神疲劳/脑机接口/功能性近红外光谱/矢量相位分析Key words
active mental fatigue/Brain-Computer Interface(BCI)/function near-infrared spectroscopy(fNIRS)/VPA分类
计算机与自动化引用本文复制引用
韩景睿,张飞杨,郑德智,樊尚春..主动精神疲劳与脑血氧矢量相位特征关联研究[J].测控技术,2025,44(11):51-61,11.基金项目
国家自然科学基金基础科学中心项目(62088101) （62088101）
