PURKINJE-IMAGE EYETRACKER

史密斯-凯特尔韦尔眼科研究基金会是一个中心， 视觉和眼动研究，目前获得320万美元， PHS赠款（建议和承诺）。 这些赠款金为研究提供资金 人类和猴子的眼球运动，以及人类视觉的研究 这可以通过眼动监测来改善或扩展。 然而，除了巩膜探测线圈系统（线圈仅 短时间可穿戴，需要有医生， 是不能容忍的一些科目），我们的基金会没有 用于精确记录人眼运动的二维设备， 的部分。 除此之外，没有任何一个人， 接触式二维眼位记录方法， 空间和时间分辨率是可用的。 眼动仪实验站将提供一个集中的 用于二维双目人眼定位的设备 监视、视眼睛位置而定的显示生成和数据 收集、分析、存储和分发。 监控， 计算和显示系统将具有1分钟弧空间 分辨率和1毫秒同步时间分辨率超过24度 24度双目视野。 强大的数据分析将是 支持，以及数据传输到其他系统。 的 系统将包括：SRI双目双浦肯野成像仪 高分辨率、快速磷光体、矢量显示器; Masscomp MC-5500多处理器实验计算机，带RTR实验 控制软件（均由SKERF提供）; a Masscomp图形 带数据分析和显示软件的终端;以太网链路 三个远程系统 计划使用该系统的项目包括：眼球运动和 速度辨别;聚散合取搜索;视觉 运动处理与平滑追踪;追踪可塑性;鼻- 运动处理中的时间不对称性;眼球震颤和对比度 灵敏度;会聚与立体匹配;双眼扫视 可塑性。

The Smith-Kettlewell Eye Research Foundation is a center for research in vision and oculomotility, currently awarded $3.2M in PHS grants (recommended and committed). These grants fund studies of eye movements in humans and monkeys, and studies of human vision that could be improved or extended with eye movement monitoring. However, except for a scleral search coil system (the coil is only wearable for short periods, requires an available physician, and is not tolerated by some subjects), our Foundation has no facilities for accurate 2-dimensional recording of human eye move- ments. Indeed, apart from the Purkinje-image Eyetracker, no non- contacting 2-D eye position recording method with reasonable spatial and temporal resolution is available. The Eyetracker Experimental Station would provide a centralized facility for 2-dimensional, binocular human eye position monitoring, eye-position-contingent display generation, and data collection, analysis, storage, and distribution. The monitoring, computation, and display system would have 1 min arc spatial resolution and 1 msec synchronous temporal resolution over a 24 deg by 24 deg binocular field. Powerful data analysis would be supported, as well as data transmission to other systems. The system would consist of: an SRI binocular Double Purkinje-image Eyetracker; high resolution, fast phospher, vector display scopes; a Masscomp MC-5500 multiprocessor lab computer with RTR experiment control software (both supplied by SKERF); a Masscomp graphics terminal with data analysis and display software; Ethernet links to three remote systems. Projects scheduled to use the system include: eye movements and velocity discrimination; vergence and conjunctive search; visual motion processing and smooth pursuit; pursuit plasticity; naso- temporal asymmetries in motion processing; nystagmus and contrast sensitivity; convergence and stereo matching; binocular saccadic plasticity.