Sleep is a complex physiological process of great significance to physical and mental health, and its research scope involves multiple disciplines. At present, the quantitative analysis of sleep mainly relies on the "gold standard" of polysomnography (PSG). However, PSG has great interference to the human body and cannot reflect the hemodynamic status of the brain. Functional near infrared spectroscopy (fNIRS) is used in sleep research, which can not only meet the demand of low interference to human body, but also reflect the hemodynamics of brain. Therefore, this paper has collected and sorted out the related literatures about fNIRS used in sleep research, concluding sleep staging research, clinical sleep monitoring research, fatigue detection research, etc. This paper provides a theoretical reference for scholars who will use fNIRS for fatigue and sleep related research in the future. Moreover, this article concludes the limitation of existing studies and points out the possible development direction of fNIRS for sleep research, in the hope of providing reference for the study of sleep and cerebral hemodynamics.
睡眠是对身心健康有着重要意义的复杂生理过程，其研究范围涉及多个学科领域。目前睡眠的定量分析主要依靠作为“金标准”的多导睡眠监测仪（PSG）完成，但是它对人体的干扰较大，并且不能反映大脑的血流动力学状况。将功能性近红外光谱（fNIRS）用于睡眠研究，既满足了对人体干扰低这一需求又能够反映大脑的血流动力学状况。因此本文收集整理了fNIRS用于睡眠研究的相关文献，从睡眠分期研究、临床睡眠监测研究、疲劳检测研究现状等方面进行梳理总结，文章的最后总结了现有研究的局限，指出后续该领域的发展方向，以期为睡眠及脑血流动力学相关领域的研究提供参考。.
Keywords: cerebral hemodynamic; functional near-infrared spectroscopy; sleep.