New Technique for the Measurement of Small Eye Movements *
New Technique for the Measurement of Small Eye Movements *
复制标题
测量小眼球运动的新技术 *
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
N. Tom
中科院分区：
文献类型：
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作者：
James W. Miller;N. Tom
加州大学的一位作者或系公开了这篇文章。由于学术参议院的开放获取政策，许多加州大学撰写的学术出版物现在将在这个网站上免费获得。让我们知道此访问权限对您有多重要。我们想听你的故事！标题：测量微小眼球运动的新技术。当测试对象静止时，当测试对象的角速度是静止时，视力增加是相似的，不仅当测试对象通过增加到并可能水平或垂直移动而基本上受益时，而且如果当观察者旋转时超过125.00英尺-C的观察者在水平面上旋转时也是如此。水平面。当观察者静止时(2)，半经验方程Y=a+bx3描述了当物体在平面上垂直圆周运动时，所获得的水平和大于视线视力的数据已被显示为测试物体的垂直运动，以及当观察者水平旋转时获得的照度增加到500所受益的数据。FT-C。因此，这种关系似乎是一般的(3)视觉敏锐度敏感的个体，当测试对象在任何平面上相对于观察者的眼睛在水平面上移动以增加角速度时，这种关系也将成立。追踪面的相对角速度越高，在垂直方向上就很可能对速度敏感。测试对象的照明强度必须越大-(4)，尽管为了保持给定的视力阈值，5到10 ft-c的照度是足够的。已经开发出一种技术，可以记录高达三到四度的眼球运动，精度约为10秒弧度。这项技术在头部移动时不会受到伪影的影响，或者如果眼睛应该在眼窝中移动，也不需要连接到眼睛上。一个非常小的光点聚焦在受试者的视网膜上，并使其在视盘上重复扫描。从眼睛反射回来的光投射到光电倍增管上，光电倍增管驱动阴极射线示波器的垂直放大器。示波器的水平扫描与扫描…同步触发
A University of California author or department has made this article openly available. Thanks to the Academic Senate's Open Access Policy, a great many UC-authored scholarly publications will now be freely available on this site. Let us know how this access is important for you. We want to hear your story! Title: New technique for the measurement of small eye movements. acuity as the angular velocity of the test object is when the test object is stationary, visual acuity is increased is similar not only when the test object is substantially benefitted by increases up to and probably moved horizontally or vertically but also if the observer exceeding 125.00 ft-c when the observer is rotated in is rotated in a horizontal plane. the horizontal plane. When the observer is stationary (2) The semiempirical equation Y= a+bx 3 describes and the object is moved in a circle in a plane perpendicu-satisfactorily the data obtained for horizontal and lar to the line of sight visual acuity has been shown to vertical movement of the test object as well as that be benefitted by an increase of illumination up to 500 obtained when the observer was rotated horizontally. ft-c. It therefore seems that the relationship is a general (3) An individual whose visual acuity is susceptible one which will also hold when the test object is moved to increases in angular velocity in the horizontal plane relative to the observer's eye in any plane. will very likely be velocity susceptible in the vertical (5) The higher the relative angular velocity of the plane of pursuit. test object the greater must be the intensity of illumina-(4) Although 5 to 10 ft-c is adequate illumination-tion in order to maintain a given visual acuity threshold. A technique has been developed for recording eye movements as large as three or four degrees, with a precision of about ten seconds of arc. The technique is not subject to artifacts when the head moves, or if the eye should shift in its socket, and no attachment to the eye is required. A very small spot of light is focused on the subject's retina and is made to scan repeatedly across the optic disk. Light reflected back out of the eye is projected on to a photomultiplier tube which drives the vertical amplifier of a cathode-ray oscilloscope. The horizontal sweep of the oscilloscope is triggered in synchrony with the scanning …