Functional Near-Infrared Imaging

A neuroimaging technique that measures brain activity by detecting changes in oxygenated blood volume using near-infrared light transmitted through the skull. In accessibility contexts, fNIR enables brain-computer interfaces that allow people with severe motor disabilities to control computers through thought alone, without any physical movement. The technology is non-invasive and portable, making it suitable for home use by people with conditions like ALS or locked-in syndrome.