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자료유형
학술저널
저자정보
저널정보
대한인간공학회 대한인간공학회지 대한인간공학회지 제24권 제2호
발행연도
2005.5
수록면
51 - 56 (6page)

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초록· 키워드

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Human perceptional speed is different from its real speed. There is lack of research that the perceptional speed is different from real speed in 2-dimension, because most research of speed perception has concentrated on points and lines. This research investigates the effects of object size on speed perception. In this research, we used 2-D circular objects of the different size, 0.9, 1.8 and 3.6°. The objects moved 9.0, 13.5 and 18.0° with three different speeds, 6.0, 9.0 and 18.0°/s. Six participants were exposed to the environment with standard scene(size: 1.8°, speed: 9.0°/s and travel distance: 13.5°). After the first scene, another scene in which the object had changed to different sizes, speeds and distances, was shown to the participants. A magnitude estimation method was used to construct a scale of the perceived speed level. The relationship between the perceived and the actual speed level was explained by Stevens's power law that the value was 0.978 with the exponent of 0.992. The size of object had an effect on the speed perception but travel distance was not. The perceptional speed of bigger object was lower than of smaller object. It showed that the degrees of perceptional speed decreased as size of object increased.

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2. 예비 실험

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4. 결론 및 추후 연구

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