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.

通过青光眼和色素残留变性和视野缺陷，已经检查了闪烁范式中的变化检测。目标的颜色和方向改变。结果表明，变化检测的结果受到衰老和视野缺陷的大小影响。当观察者搜索更改的目标时，眼睛运动的视野大小有限。青光眼和色素残留变性的眼睛运动类似于没有视野缺陷的观察者的4°至8゜的视野。此外，视觉变化检测中的反应时间比触觉变化检测的时间短。根据各种视野大小的反应时间，估算了触觉场。结果，在双重任务，亮度和颜色对比度灵敏度下，触觉iELD大约为0.5゜。随着偏心率的增加，提高了对RSVP的亮度和颜色对比度敏感性。此外，年龄较大的观察者比在颜色对比敏感性的年轻成人观察者表现出较低的对比灵敏度。另一方面，涉及三维信息的模式将向先天和先进的盲人提供。结果表明，先天性盲人无法在触觉模式下感知三维信息，但是高级盲人可以在触觉模式下感知。这些发现表明，视觉体验在感知触觉模式方面起着重要作用。此外，发现视觉可读性和关注在舒适的基础空间中很重要。另一方面，通过使用划分的图像密码技术来开发投票系统。