Functional near infrared spectroscopy (fNIRS) is a non-invasive optical imaging technique that uses low levels of light to measure blood flow changes in the brain associated with brain activity, such as performance of a task. NIRS combines excellent temporal resolution (~1 ms) with reasonable spatial resolution (~1 cm), and can be made relatively insensitive to head or body motion. It has helped to advance basic science brain mapping studies, identifying areas of the brain associated with a range of motor and visual tasks. The NIRS systems provide non-invasive measurements of oxygen saturation, hemoglobin and cytochrome C levels.
The NIRS Brain Imaging Laboratory includes a 200 square foot subject testing room dedicated for simple optical experiments. For more complex experiments, the optical instrumentation is portable and can be moved to a particular research environment.