权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Analysis of eye movement using an infrared television funduscopy

使用红外电视眼底检查分析眼球运动

基本信息

批准号：
60480394
负责人：
KANI Kazutaka
金额：
$ 4.1万
依托单位：
Hyogo College of Medicine
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60480394/
关键词：
Fundus perimeter Fundus haploscope Y system X system 跳躍眼球運動

项目摘要

A new instrument for observing the fundi of the both eyes by infrared television was made. As visual stimuli, the instrument has both computer graphics system and the hardware target system.Retinal sensitivity and the critical area of the spatial summation in the foveal and parafoveal regions were investigated using pulse stimuli and ramp stimuli in man. The receptive fields were calculated from the critical area of complete spatial summation and non-summation.The diameter of the receptive field is a linear function of retinal eccentricity. Using pulse stimuli the least-sqare line was calculated to be Y=0.55E+4.15, where Y is the diameter of the receptive field and E is the retinal eccentricity. This corresponds to the Y system in the monkey. Using ramp stimuli, Y=0.21E+2.19 was obtained, which corresponds to the X system in the monkey.Threshold was examined in both eyes stimulating the corresponding points of the retina. Facilitation effect was observed when the stimuli near the threshold were given to the other eye.Saccadic latency was shorter when the stimuli were given to the dominant eye than non-dominant eye.

研制了一种利用红外电视观察双眼眼底的新型仪器。作为视觉刺激，仪器既有计算机图形系统，也有硬件目标系统。研究了脉冲刺激和斜坡刺激对人眼视网膜敏感度和中央凹和中央凹旁区域空间总和的影响。从空间完全求和和非求和的临界区域计算感受野。感受野的直径是视网膜偏心率的线性函数。使用脉冲刺激，最小二乘线计算为Y=0.55E+4.15，其中Y是感受野的直径，E是视网膜偏心。这与猴子的Y系统相对应。使用斜坡刺激得到Y=0.21E+2.19，对应于猴子的X系统。在两只眼睛刺激视网膜的相应点检查阈值。当阈值附近的刺激作用于另一只眼时，观察到促进效应。当主视眼受到刺激时，跳动潜伏期比非主视眼短。