title: Quantification of reaction time and time perception during Space Shuttle operations.
abstract: A microprocessor-based test battery containing simple reaction time, choice reaction time, and time perception tasks was flown aboard a 1985 Space Shuttle flight. Data were obtained from four crewmembers. Individual subject means indicate a correlation between change in reaction time during the flight and the presence of space motion sickness symptoms. The time perception task results indicate that the shortest duration task time (2 s) is progressively overestimated as the mission proceeds and is statistically significant (p less than 0.01) when comparing preflight and postflight baselines. The tasks that required longer periods of time to estimate (8, 12, and 16 s) are less affected.
authors: Armstrong Aerospace Medical Research Laboratory, Aerospace Medical Division, Wright-Patterson Air Force Base, Ohio 45433-6573.
authors: D A
authors: DA
authors: Ratino
authors: D W
authors: DW
authors: Repperger
authors: C
authors: C
authors: Goodyear
authors: G
authors: G
authors: Potor
authors: L E
authors: LE
authors: Rodriguez
mesh_terms: D000704:Analysis of Variance; D002755:Choice Behavior / Q000502:physiology; D006801:Humans; D011930:Reaction Time / Q000502:physiology*; D013026:Space Flight; D013647:Task Performance and Analysis; D013998:Time Perception / Q000502:physiology*