Perceived Length of Moving Figures : The Effect of Luminance Relationship Between Figure and Background upon Reduction Phenomenon
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概要
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A rectangular figure moving horizontally at a constant speed shows a decrease in its perceived length parallel to the direction of movement. This study concerns the effect of the luminance relationship between figure and background upon this phenomenon. The perceived length in a stationary state was also measured for different exposure times corresponding to the speeds used, in order to obtain the relative difference between the perceived length of a figure in a stationary state and that of the figure in a dynamic state. Three linear figures of 1.5°, 3°and 6°were used; all of them had a constant height of 0.25°. The stimulus figure was attached to a horizontally moving belt. Speeds of 28°/s, 35°/s and 42°/s were used. The points of subjective equality of the stimulus figures were obtained by the method of limits. Eight students served as subjects. The same reduction tendencies were shown at the different speeds despite the different luminance relationships.
- 日本基礎心理学会の論文
- 1982-10-31