| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2002: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Research Abstract |
Microgenetic process of perception can be observed when the perceptual situation is eliminated with the stimulus ambiguous, the illumination dark, the presentation time short, etc. In this sense, the perception by aged people or people with eye disease shows the microgenetic process. The purpose of this research was to simulate the stereoscopic perception of those aged or sick.
The presentation time of stereoscopic perception of size and distance was eliminated. The procedure was adaptation / aftereffect, which the investigator has been using. during the adaptation, two squares with equal retinal size but with binocular disparity were tachistoscopically exposed repeatedly. If the size constancy appears, the distant square should be perceived to be larger. In the aftereffect phase, two squares with equal retinal size but without binocular disparity were tachistoscopically exposed repeatedly. If the aftereffect occurs, the perception should be reverse to that appeared in the adaptation. The subjects were university students with normal or corrected visual acuity.
Among 100 subjects, only a half of them reported size constancy in the adaptation. And, very small number of the subject reported the predicted aftereffect. The exposure time shorter than 6s was not enough for stereoscopic p adaptation. However, a small part of subjects reported the predicted microgenetic process of adaptation / aftereffect.
These results were not sufficient to use as a reference for comparisons with aged conditions or disease conditions. More analysis of microgenetic time conditions for stereoscopic size constancy and aftereffect is necessary.
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