Headsets, namely, near-infrared spectroscopy (NIRS) headsets for measuring brain activities, not for medical purposes; Headsets, namely, near-infrared spectroscopy (NIRS) headsets for exercising the brain, not for medical purposes; computer programs, namely, computer programs for use with near-infrared spectroscopy (NIRS) headsets for measuring brain activities; computer programs, namely, computer programs for use with near-infrared spectroscopy (NIRS) headsets for exercising the brain