PERFORMANCE STUDIES ON THE NOTS-UCLA TRACKING SIMULATOR: EFFECTS OF ERROR MAGNIFICATION, FIELD OF VIEW, PROPRIOCEPTIVE CUES AND CONTROL DYNAMICS

摘要

Experiments were performed on the NOTS-UCLA Tracking Simulator to assess effects of field of view and error magnification proprioceptive cues and displacement aiding on tracking performance. Performance effects due to trajectory characteristics, trajectory direction and tracking dimension were also analyzed. Particular attention was paid to individual differences and interactions between the chosen variables. The results showed: 1) that an error magnification by a factor of five significantly decreases tracking error compared to tracking without error magnification;2) that proprioceptive cues related to both azimuth and elevation significantly improved tracking per¬formance;3) that the displacement aiding control dynamics produced better tracking scores than unaided velocity control dynamics. Individual differences in performance remained fairly consistent over all experimental conditions. The better trackers were consistently superior and showed less decrement on the more difficult tasks than the poorer trackers. Other interaction effects were relatively unimportant.