

fNiRs
What is fNiRS?
Evidence-Based | Scientifically Proven | Therapeutic effect | Safe Natural | Non-Invasive
The NIRSIT system (OBELAB, Korea) transmits near-infrared light through the skull to the cerebral cortex, where the light is absorbed by hemoglobin. These changing concentrations of hemoglobin correspond to regions of activation within the cerebral cortex, providing an effective non-invasive measure of brain activity ideal for use to assess attention in adults and memory in the elderly.
Near-infrared light is capable of penetrating tissue and bone. Using an emitter laser diode on the scalp, the light reaches 2–3 cm into the skull and cerebral cortex. In the cerebral cortex, near-infrared light is absorbed by hemoglobin, with any non-absorbed light reflecting back to the surface. Oxyhemoglobin and deoxyhemoglobin absorb light differently. By using two different frequency-modulated wavelengths of light (780nm to 850nm), one can calculate the ratio between oxy- and deoxyhemoglobin simultaneously.
The NIRSIT system is able to provide a report to compare your oxy-haemoglobin level compared to healthy adults without attention or memory problems.