THE MECHANISM OF PHYSIOLOGICAL HEIGHT VERTIGO .2. POSTUROGRAPHY
THE MECHANISM OF PHYSIOLOGICAL HEIGHT VERTIGO .2. POSTUROGRAPHY
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DOI：
10.3109/00016488009127171
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发表时间：
1980-01-01
影响因子：
1.4
通讯作者：
ARNOLD, F
中科院分区：
文献类型：
--
作者：
BLES, W;KAPTEYN, TS;ARNOLD, F
为了验证这一假设，即当眼睛和物体之间的距离变得非常大时，高度眩晕是基于[人类]自由站立的视觉不稳定，姿势实验证明了它的几个后果。视觉信号与正弦倾斜房间提供的同时前庭和体感输入相冲突，可能会使前后和横向的姿势摇摆不稳定。在自然环境中，摇摆幅度随着眼睛-物体距离的增加而增加，直到5 m。主观高度眩晕作为一个适当的警告信号，以撤回身体从刺激情况下诱导姿势不平衡。姿势性高度眩晕问题可以通过调整头部相对于重力矢量的位置，以及根据视网膜周边对动态空间定向的主导作用，通过视觉周边中存在附近的静止对比来缓解。
To validate the hypothesis that height vertigo is based on [human] visual destabilization of free stance when the distance between eye and object becomes critically large, several of its consequences were demonstrated in posturographic experiments. Visual signals conflicting with simultaneous vestibular and somatosensory inputs provided by sinusoidally tilting rooms may destabilize postural sway in the fore-aft and in the lateral direction. In natural surroundings sway amplitudes increase with increasing eye-object distance up to 5 m. Subjective height vertigo serves as an appropriate warning signal to withdraw the body from a stimulus situation inducing postural imbalance. Postural height vertigo problems can be alleviated by adjusting the head relative to the gravitational vector, and by the presence of nearby stationary contrasts in the visual periphery according to the dominance of retinal periphery for dynamic spatial orientation.