In this experiment, a virtual reality (VR) headset system will be used to investigate the effect of microgravity on cognitive function and motor skills. Tasks to assess attention will be performed while a crewmember wears a cap that monitors neural activity (via functional near-infrared spectroscopy, fNIRS). Saliva and tear samples will be collected to investigate stress hormone and biological responses to spaceflight and demanding experimental cognitive tasks. This research adds to data exploring how space travel impacts human cognition and motor planning and execution.