Functional Near-Infrared Spectroscopy (fNIRS) (IMAGE) German Sport University Caption Functional near-infrared spectroscopy (fNIRS) - Dr. Ingo Helmich. Credit German Sport University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.