14 Influence of Simultaneous Change of Color and Shape to the Reconfirmation Capability by Memory 1030255 15 2 12 1 1      7 CRT ×
Michinao KAKU I conducted the experiment in which I measured influence of simultaneous change of color and shape to the reconfirmation capability by memory. In the experiment, some kinds of stimuli with different color and shape were shown on a CRT display. A subject memorized stimuli and after it disappeared, one of stimuli was presented on the CRT display.  The subject task was to judge whether the stimulus shown at the last was involved in a set of stimuli presented first. The number of the stimuli in the set was changed in ea condition; only color was anged, only shape was anged and both color and shape were changed. In this research, the difference of reconfirmation capability by memory between the experimental conditions was investigated. In the case of color only change, saturation and brightness of the stimuli were set constant in terms of a graphic application setting. Hue of the stimuli was just changed by equal interval on the graphic application. In the case of shape only ange, the stimuli consisted of combinations with a circle, a square, an equilateral triangle and rotation. The number of stimuli presented on the CRT display at one time was from 1 to 7. I measured a rate of correct answer on 20 trials for ea condition. In the experiment with the stimuli anged in both a color and a shape, the result was not likely to the one in the experiments of the color only ange and the shape only change. The following formula was assumed to explain the experimental result. Predicted correct  rate = The rate of a correct answer in the experiment with the color only changes × The rate of a correct answer in the experiment with the shape only changes From this formula, the result of the experiments fitted well when the subject was not allowed t o describe stimuli in language. However, the result of the experiment did not fit when the subject was allowed to use naming of stimuli. On these subjects, the rate of a correct answer decreased because the amount of information to be memorized by words would be beyond subjects' power. key words Reconfirmation  Naming
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4.2 4.2 . . × 3 100 . 5 1. 2. 3. [1] [VISION] Vol.14 No.1 pp61 2003 [ 2] [3] [4] [5] [6] [7] [8]