Researchers at the Massachusetts Institute of Technology (MIT) have tested what is thought to be the first fiber with digital system capabilities. It is able to sense, store and process activity data digitally after being incorporated within a shirt. Fabrics with digital system capabilities could be used in physiological monitoring, human-computer interfaces and on-body machine-learning, the researchers explained. The scientists connected hundreds of individually addressable digital devices during the fiber drawing process, as opposed to after draw. In-fiber electronic devices were placed uniformly at different spots along the fiber, with each device offering different functions like sensing, data storage and more. The study was published in Nature Communications on June 3.