"This digital biomarker essentially enables any simple EEG headband device to be used as a fitness tracker for brain health," says Brice McConnell, MD, Ph.D., assistant professor of neurology at the University of Colorado School of Medicine and study senior author. "Demonstrating how we can assess digital biomarkers for early indications of disease using accessible and scalable headband devices in a home setting is a huge advancement in catching and mitigating Alzheimer's disease at the earliest stages."