相关实验视频
Updated: Sep 19, 2025

06:12
Long-term Sensory Conflict in Freely Behaving Mice
Published on: February 20, 2019
6.8K
感官运动适应持续下部视野阻塞在连续移动期间与或没有障碍物谈判的障碍物谈判
John G Buckley1, Alan R De Asha2, Brendan T Barrett3
1Department of Biomedical Engineering, Faculty of Engineering and Digital Technologies, University of Bradford, Bradford, UK. j.buckley@bradford.ac.uk.
Experimental brain research
|June 4, 2025
概括
视觉反对于运动控制至关重要,但随着持续的闭塞,它的重要性会减少. 下视野 (LVF) 阻塞最初会增加足部清除,但这种效果在平行时是暂时的.
科学领域:
- 神经科学是一个神经科学.
- 生物力学 生物力学
- 人类的机动运动.
背景情况:
- 视觉反,特别是来自下视野 (LVF),传统上被认为对运动控制很重要.
- 之前使用间歇性LVF封闭在障碍物穿越期间的研究显示增加了脚清除,但这种效果可能会随着重复而减弱.
研究的目的:
- 为了研究持续的LVF封闭对在平面上连续移动和在障碍物谈判期间脚间隙的影响.
- 为了确定LVF封闭后脚清除的初始增加是否是一种暂时的或持续的适应.
主要方法:
- 进行了两项研究,涉及连续行走期间下视野 (LVF) 持续封闭.
- 参与者在平坦的地面上和间歇性障碍物的表面上行走.
主要成果:
- 持续的LVF阻塞最初在水平行走和跨越障碍物时增加了足部清除空间.
- 这种增加在水平步行时在几分钟内减少,在四分钟后恢复到闭塞前的水平.
- 在穿越障碍物时,脚间距仍然很高,随着时间的推移只略有下降.
结论:
- 在正常的地面行走过程中,控制摇摆的肢体并非必不可少的LVF外proprioceptive信息.
- 在适应性步态中,LVF反被利用,特别是在障碍物谈判中,影响脚部位置和空隙.
- LVF封闭可能会导致一般的步态扰乱,而不是仅仅消除视觉反,影响实验解释.
相关概念视频
Depth Perception and Spatial Vision
979
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
979
Perceptual Constancy
593
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
593

