Eye-tracking mask could monitor people's reactions to what they see

An eye-tracking mask that also measures the wearer's pulse could be used to study people's reactions to things they are viewing. Trisha Andrew at the University of Massachusetts Amherst and her colleagues developed two fabric-based electrodes, which enable continuous monitoring of the wearer's eye movements and pulse for up to 8 hours. Because the electrodes are made of fabric, the mask is also washable and reusable. This could make it useful for health monitoring, particularly of sleep. Eye movement changes are important indicators of sleep phase, such as rapid eye movement (REM) and non REM sleep, says Andrew.