fNIR System (IMAGE) Drexel University Caption A study participant stands while wearing the portable fNIR system, which uses light to monitor changes in blood oxygenation in the brain as individuals perform tasks. Credit Albert Einstein College of Medicine 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.