Functional near-infrared spectroscopy (fNIRS) utilizes the strong scattering properties of major blood components in the 600-900nm near-infrared range to detect changes in oxygenated and deoxygenated hemoglobin during brain activity. Compared to EEG, fNIRS offers higher spatial resolution, and when compared to fMRI, it provides superior temporal resolution, making it an ideal tool for brain science research.
After years of development, functional near-infrared spectroscopy has been widely applied across multiple fields including psychology, cognitive neuroscience, sports science, neurological rehabilitation, and diagnosis/treatment of mental disorders.
