Department of Psychosomatic Internal Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan.
Adv Clin Exp Med. 2023 Dec;32(12):1441-1451. doi: 10.17219/acem/162537.
Near-infrared (NIR) spectroscopy, also known as functional NIR spectroscopy (fNIRS), is a tool for measuring the hemodynamic response of the prefrontal cortex (PFC) by using NIR light, enabling a noninvasive indirect neural activity assessment. The application of fNIRS in emotion recognition or the differential diagnosis of psychiatric disorders of depressive patients, including major depressive disorder, bipolar disorder and schizophrenia, has previously been reported. Although the use of fNIRS has gradually expanded in cognitive neuroscience studies, few researchers have focused on the effects of light exposure in fNIRS studies. In addition, to the best of our knowledge, there are no scoping reviews of fNIRS studies on light exposure. Because light is an important topic in cognitive neuroscience and psychiatry, we evaluated fNIRS studies on light exposure in humans. We reviewed 10 papers in their entirety. Bright light (BR) modulates fear, and the color differences showed no significance in 1 study, whereas other studies delved extensively into the effects of colored light, finding some individual hemodynamic responses. In our study, we highlighted that the effects of natural light have not been studied using fNIRS. Light is becoming a critical topic in cognitive neuroscience and psychiatry, and fNIRS is critical for improving public health and managing psychiatric disorders.
近红外光谱（NIR）技术，又称功能近红外光谱（fNIRS），是一种通过近红外光测量前额叶皮层（PFC）的血液动力学反应的工具，可实现非侵入性的间接神经活动评估。先前已有报道称，fNIRS 可应用于情绪识别或抑郁患者的精神疾病（包括重度抑郁症、双相情感障碍和精神分裂症）的鉴别诊断。尽管 fNIRS 在认知神经科学研究中的应用逐渐扩大，但很少有研究人员关注 fNIRS 研究中的光照影响。此外，据我们所知，目前尚无针对 fNIRS 光照研究的范围综述。由于光在认知神经科学和精神病学中是一个重要的主题，我们评估了人类中关于光暴露的 fNIRS 研究。我们全面审查了 10 篇论文。强光（BR）可调节恐惧，而在 1 项研究中颜色差异无显著性意义，而其他研究则深入探讨了彩色光的影响，发现了一些个体的血液动力学反应。在我们的研究中，我们强调指出，尚未使用 fNIRS 研究自然光的影响。光正在成为认知神经科学和精神病学中的一个关键主题，fNIRS 对于改善公众健康和管理精神疾病至关重要。
