Habitatuation of Crew Performance, Stress and Mood Aboard a SWATH and Monohull Vessel

Crew performance and psychophysiological state were assessed aboard a SWATH and monohull vessel during a two day side-by-side continuous steaming period in low sea states. Crew performance was degraded and psychophysiological stress increased significantly aboard the monohull during the first steaming day. On the second day at sea all measures except mood changes and performance tasks perturbed directly by vessel motions habituated to near control levels. Performance and psychophysiological measures were relatively unaffected aboard the SWATH vessel.