BINOCULAR VISION AND MOTION PERCEPTION

描述：本次提案，竞续为本金 调查员目前的拨款(EY07760)使用心理物理方法来 实现以下研究目标：a)了解自然 以及，在可能的情况下，涉及到的过程的神经解剖轨迹 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/或期望对注册和 集成对象/运动信息；c)了解如何高效 可视信息部署在以下条件下 必须从记忆中回忆起；以及d)区分有意识的 在分析视觉信息时的无意识过程， 尤其是在无意识加工与双眼竞争有关的情况下。 具体的实验解决了以下问题：1.如何 可以有效地对边框和对比度进行纹理调制，“非傅立叶” 等高线支持立体处理？2.在多大程度上 关于物体身份的知识如何影响运动知觉？3.如何 人类对视觉运动的记忆是准确的吗？4.视觉运动的精致程度 与现场神经处理相关的运动信息分析 在什么情况下，双眼抑制会干扰视力？ 具体方法包括强制选择立体测量 生物运动的辨别性能与辨别 双目视觉优势周期和抑制周期的序列跟踪 竞争，在竞争条件下的运动启动诱导， 在以下条件下测量方向和/或运动一致性辨别 观察者必须记住扩展的运动信息的条件 持续时间。这些实验的结果，除了提供 关于基本加工的性质和顺序的信息 双目视觉和运动感知，将对 当代运动知觉理论，并可能为 运动和双眼神经伴生的生理学研究 视力(包括他们的障碍)。

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).