| Summary: | 碩士 === 中原大學 === 工業工程研究所 === 94 === Motion environments pose many problems to human performances (e.g. motion sickness, motion induce interruption and motion induce fatigue). There exists many literatures to investigate the issues of visual performances, but few focus on the effect on signal detection task during motion environments with different display polarity and screen quadrant. The purpose of this study was to compare the effect of different motion experimental environments (static, heave, roll and pitch), two display polarities (black background white target and white background black target), and four quadrants (the screen was split into four same areas as usual) on the signal detection performance. The motion environment (frequency: 0.3Hz, amplitude of vibration: ±10cm or ±8°) was made by a 6 degree of freedom (DOF) platform motion simulator. The specifications of the platform are as follows: Heave（range±20cm）, Sway（range±25cm）, Surge（range±25cm）, Pitch（range±15°）, Roll（range±15°）, Yaw（range±17°）. The experiment of 2×4×4 design with eight subjects was adopted in each test. The dependent variables are used to assess the performance are outlined below: 1. reaction time. 2. accuracy. The independent variables include display polarity, motion environments, and quadrant. The preliminary results showed that signal detection reaction time during motion environments was significantly affected by different quadrant (p=0.024), and the interaction between display polarity and motion environments was significant (p=0.001). Based on these initial findings in the experiment, it provides the designer a guideline as how to put the important information on the suitable position of a screen during motion environments.
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