What is fNIRS?

Functional near-infrared spectroscopy (fNIRS) is a non-invasive neuroimaging technique that measures brain activity through changes in cerebral blood flow. It uses near-infrared light to detect changes in the concentrations of oxygenated and deoxygenated hemoglobin, which are correlated with neural activity. fNIRS is commonly used in cognitive neuroscience, psychology, and clinical research to study brain function in various tasks and conditions, such as language processing, motor control, and neurodevelopmental disorders. It is also used in brain-computer interfaces and neurorehabilitation.