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Human brain function that produces illusory wide field via local accumulation, and its application for visual and haptic 's devices

人脑通过局部积累产生虚幻广域的功能及其在视觉和触觉设备中的应用

基本信息

批准号：
19330163
负责人：
WAKE Tenji
金额：
$ 9.98万
依托单位：
Kanagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2007
资助国家：
日本
起止时间：
2007 至 2010
项目状态：
已结题

项目摘要

The change detection in flicker paradigm has been examined by glaucoma and pigmentary retinal degeneration with defect of visual field. The target is changed in color and orientation. It was shown that the result of the change detection was influenced by aging and the size of visual field defect. When observers search a changed target, the eye movement differs with limited size of visual field of observers. The eye movement of glaucoma and pigmentary retinal degeneration is similar to visual field of 4゜to 8゜in observers without visual field defect. Moreover, the reaction time in visual change detection is shorter than that in tactile change detection. Based on the reaction time in various size of visual field , tactile field was estimated. As the results, the tactile ield was approximately 0.5゜.In the dual task, luminance and color contrast sensitivity was measured under various eccentricity of retina. Luminance and color contrast sensitivity with RSVP were decreased with the increase of eccentricity. Furthermore, older observers show lower contrast sensitivity than younger adult observers in color contrast sensitivity. On the other hand, patterns involving the three dimensional information are presented to congenitally and adventitiously blind persons. It was shown that the congenitally blind persons can not perceive the three dimensional information in haptic mode, but the adventitiously blind persons can perceive in haptic mode. These findings imply that visual experiences play an important role in order to perceive tactile patterns. Furthermore, it was found that visual readability and attention are important in comfort of the underground space. On the other hand, voting system have been developed by using a divided images cryptography technology.

闪烁范式的变化检测已通过青光眼和伴有视野缺损的色素性视网膜变性进行了检查。目标的颜色和方向发生变化。结果表明，变化检测的结果受年龄和视野缺损大小的影响。当观察者搜索变化的目标时，由于观察者视野大小的限制，眼球运动会有所不同。青光眼和视网膜色素变性的眼球运动与无视野缺损的观察者的4゜至8゜视野相似。此外，视觉变化检测的反应时间比触觉变化检测的反应时间短。根据不同大小视野下的反应时间，估计触觉场。结果，触觉场约为0.5゜。在双重任务中，测量了不同视网膜偏心率下的亮度和颜色对比敏感度。 RSVP 的亮度和颜色对比敏感度随着偏心率的增加而降低。此外，老年观察者在颜色对比敏感度方面表现出比年轻成年观察者更低的对比敏感度。另一方面，涉及三维信息的图案被呈现给先天性和偶然性盲人。结果表明，先天性盲人不能以触觉模式感知三维信息，而后天盲人则可以以触觉模式感知三维信息。这些发现意味着视觉体验在感知触觉模式中发挥着重要作用。此外，人们发现视觉可读性和注意力对于地下空间的舒适度很重要。另一方面，利用分割图像密码技术开发了投票系统。