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运动干扰器会比静态干扰器更晚地扰乱萨卡德编程
Devin H Kehoe1,2,3,4, Lukas Schießer5, Hassaan Malik6
1Department of Psychology, York University, Toronto, M3J 1P3, Canada.
Current research in neurobiology
|July 3, 2023
概括
视觉运动干扰器在影响眼动之前需要额外的处理时间,从而影响眼动轨迹. 这种处理延迟会影响顺序反应时间和轨迹偏差大小.
科学领域:
- 神经科学是一个神经科学.
- 眼神运动控制器的控制器
- 视觉感知 视觉感知 视觉感知
背景情况:
- 视觉特征影响眼运动控制的确切机制尚不完全理解.
- 眼运动视觉激活延迟为先前的特征处理提供了线索.
- 了解视觉干扰器处理对于破译眼运动载体重量化至关重要.
研究的目的:
- 调查静态和运动视觉分心器眼运动处理的时间过程.
- 为了确定分心特征 (运动方向,速度) 如何影响萨卡德行为.
- 为了检查分心器处理时间,萨卡德反应时间和萨卡德振幅之间的关系.
主要方法:
- 连续测量人类的萨卡迪行为指标.
- 静态和运动干扰器的眼运动处理时间的比较.
- 对分心轨迹偏差的分析,作为分心器出现后的时间函数.
主要成果:
- 静态和运动分心器都引起了曲的摇摆和转移的终点,大约在25 ms左右.
- 与静态干扰剂相比 (在50毫秒后),运动干扰剂显示出10毫秒后的萨卡德轨迹偏差效应.
- 较短的萨卡德反应时间与偏向的萨卡德轨迹中较短的分心处理时间延迟相关.
结论:
- 运动刺激在影响眼运动系统之前经过额外的处理,通过延迟的萨卡德轨迹偏差来表明这一点.
- 较短的萨卡德反应时间和较大的萨卡德振幅与更大的萨卡德轨迹偏差有关.
- 这些发现揭示了视觉眼运动整合和分心干扰的时间动态.
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