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An integrated model of fixational eye movements and microsaccades

机译:固定眼动和微扫视的集成模型

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摘要

Visual information processing is achieved through saccadic eye movements that move the gaze to regions of interest in the environment. However, even during visual fixation, human eyes generate the two important miniature eye movements, i.e., (i) physiological drift and tremor (slow eye movements) and (ii) microsaccades (rapid, small-amplitude movements). Whereas fixational eye movements in general counteract retinal fading due to fast adaptations of the receptor systems, a specific function for microsaccades remains to be identified. Here, we developed a mathematical model that provides a common principle for physiological drift and microsaccades. The model is based on the concept of a sejf-avoiding random walk, i.e., a stochastic motion that avoids visiting the same location more than once.
机译:视觉信息处理是通过使眼睛凝视到环境中感兴趣区域的眼球运动来实现的。但是,即使在视觉固定期间,人眼也会产生两个重要的微型眼动,即(i)生理漂移和震颤(眼动缓慢)和(ii)微扫视(快速,小幅度运动)。尽管由于受体系统的快速适应,固定眼的运动通常会抵消视网膜的衰落,但微扫视的特定功能仍有待确定。在这里,我们开发了一个数学模型,为生理漂移和微扫视提供了通用原理。该模型基于避免随机行走的概念,即一种随机运动,可以避免多次访问同一位置。

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    Departments of Psychology , University of Potsdam, 14469 Potsdam, Germany;

    Departments of Psychology , University of Potsdam, 14469 Potsdam, Germany,Department of Software Engineering and Theoretical Computer Science, Technische Universitat Berlin, StraGe des 17. Juni 135, 10623 Berlin, Germany;

    Departments of Psychology , University of Potsdam, 14469 Potsdam, Germany;

    Departments of Physics, University of Potsdam, 14469 Potsdam, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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