Elimination of situation and aging/disease in stereoscopic vision
| Project/Area Number |
13610101
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
実験系心理学
|
|---|
| Research Institution | Kinki University |
|---|
Principal Investigator |
NAKATANI Katsuya Kinki University, Department of Cultural Studies, Professor, 文芸学部, 教授 (60188977)
|
|---|
| Project Period (FY) |
2001 – 2002
|
| Project Status |
Completed (Fiscal Year 2002)
|
| 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)
|
|---|
| Keywords | stereoscopic perception / adaptation / size constancy / size aftereffect / depth aftereffect / tachistoscopic exposure / microgenesis / aging / ホイートストン型実体鏡 / 繰り返し提示 / 練習効果 / 視野の不斉一 / 白内障 / 黄斑変性症 |
|---|
| 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.
|
Report
(3 results)
Research Products
(11 results)
