Induced self-motion in central vision.
Induced self-motion in central vision.
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DOI：
10.1037//0096-1523.11.2.122
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发表时间：
1985-04
期刊：
影响因子：
--
通讯作者：
G. Andersen;M. Braunstein
中科院分区：
文献类型：
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作者：
G. Andersen;M. Braunstein
先前关于视觉诱导的自我运动的研究发现，中央视野（直径达30度）的刺激导致感知到的物体运动，而自我运动需要外围刺激。在本研究中，通过模拟观察者在充满点的空间中运动的径向扩展模式来诱导感知到的自我运动，视角为7.5度、10.6度、15度和21.2度。速度和纹理密度也不同。报告的自我运动持续时间（a）随着速度的增加而减少，（B）未能随着视角的增加而增加，（c）在最高速度水平下随着视角的增加而减少。在第二个实验中，受试者对显示器的感知深度进行评分。速度和速度/面积相互作用的影响，判断深度相匹配的诱导自我运动。这些结果表明焦点/环境理论的扩展：除了需要周边视觉的更原始的环境处理模式之外，还有一个更高级别的系统与环境处理有关，该系统在中央视野中起作用，并使用更复杂的刺激信息，例如以径向扩展模式表示的内部深度。
Previous research on visually induced self-motion found that stimulation of the central visual field (up to 30 degrees in diameter) results in perceived object motion while self-motion requires peripheral stimulation. In the present study, perceived self-motion was induced with a radially expanding pattern simulating observer motion through a space filled with dots, with visual angles of 7.5 degrees, 10.6 degrees, 15 degrees, and 21.2 degrees. Speed and texture density were also varied. The duration of reported self-motion (a) decreased with increased speed, (b) failed to increase with increased visual angle, and (c) decreased with visual angle at the highest speed level. In a second experiment, subjects rated the perceived depth of the displays. The speed and speed/area interaction effects on judged depth matched those found for induced self-motion. These results suggest an extension of the focal/ambient theory: In addition to a more primitive ambient processing mode that requires peripheral vision, there is a higher level system concerned with ambient processing that functions in the central visual field and uses more complex stimulus information, such as internal depth represented in a radially expanding pattern.