BINOCULAR VISION AND MOTION PERCEPTION

描述：本建议书，竞争性更新的主要 调查员目前的补助金（EY 07760）使用心理物理方法， 实现以下研究目标：a）了解 并且，在可能的情况下，涉及的过程的神经解剖学位点， 对物体和事件的视觉感知，特别强调 由立体视觉和运动提供的视觉信息; B）检查 知识和/或期望对登记的影响， 对象/运动信息的集成; c）学习如何有效地 视觉信息是在这样的条件下部署的， 必须从记忆中回忆起来; d）区分意识和 在分析视觉信息的过程中， 特别是当无意识处理涉及双眼竞争时。 具体实验解决以下问题：1。如何 有效地可以纹理边界和对比度调制，“非傅立叶” 轮廓是否支持立体处理？ 2.在多大程度上 物体特性知识影响运动知觉？ 3.如何 人类对视觉运动的记忆是准确的吗 4.如何完善是 分析与该部位的神经处理相关的运动信息 双眼抑制在什么时候会中断视觉？ 具体方法包括立体的强迫选择测量 生物运动的识别性能与识别 序列，跟踪期间的优势和抑制双目 竞争，在竞争条件下诱导运动启动， 测量方向和/或运动相干性辨别 观察者必须记住运动信息的条件， 持续时间。 这些实验的结果，除了提供 有关处理的性质和顺序的信息 双目视觉和运动感知，将对 运动知觉的当代理论，并可能指出的方式， 运动和双眼神经伴随的生理学研究 视力（包括其障碍）。

DESCRIPTION: This proposal, the competitive renewal for the principal investigator's current grant (EY07760) uses psychophysical methods to achieve the following research objectives: a) to understand the nature and, where possible, the neuroanatomical loci of processes involved in visual perception of objects and events, with particular emphasis on visual information provided by stereopsis and motion; b) to examine the influence of knowledge and/or expectations on registration and integration of object/motion information; c) to learn how efficiently visual information is deployed under conditions where that information must be recalled from memory; and d) to distinguish conscious from unconscious processes in the analysis of that visual information, particularly as unconscious processing relates to binocular rivalry. Specific experiments address the following questions: 1. How effectively can texture borders and contrast modulated, "non-Fourier" contours support stereoscopic processing? 2. To what extent does knowledge about object identity influence motion perception? 3. How accurate is human memory for visual motion? 4. How refined is the analysis of motion information relative to neural processing at the site at which binocular suppression interrupts vision? Specific methods include forced-choice measurement of stereoscopic discrimination performance and discrimination of biological motion sequences, tracking of periods of dominance and suppression in binocular rivalry, induction of motion priming under conditions of rivalry, measurement of direction and/or motion coherence discrimination under conditions where observers must remember motion information for extended durations. Results from these experiments, besides providing information on the nature and sequence of processing underlying binocular vision and motion perception, will bear importantly on contemporary theories of motion perception and may point the way to physiological studies of the neural concomitants of motion and binocular vision (including their disorders).