Visual postural performance after loss of somatosensory and vestibular function.
Visual postural performance after loss of somatosensory and vestibular function.
复制标题
体感和前庭功能丧失后的视觉姿势表现。
DOI：
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发表时间：
1987
影响因子：
11
通讯作者：
T. Brandt
中科院分区：
文献类型：
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作者：
W. Paulus;A. Straube;T. Brandt
对前庭系统严重缺陷(庆大霉素治疗)和躯体感觉系统严重缺陷(多发性神经病)患者的身体摇摆视觉稳定性进行了研究。睁开眼睛，病人能够慢慢地站立和行走。闭上眼睛，他在一秒内失去了平衡。为了优化视觉稳定性，他直观地搜索了附近的视觉目标。他的姿势摆动是用姿势描记法记录下来的。他的平衡能力显著下降，超过眼睛与周围物体之间1米的距离，视力低于0.3(实验中使用半透明塑料薄膜实现)。随着视觉环境频率递减的闪烁照明，他需要至少17赫兹的视觉输入率才能保持直立的身体位置。这些数据为快速视觉脊髓姿势控制提供了临床证据。
Visual stabilisation of body sway in a patient with severe deficits of the vestibular system (due to gentamicin treatment) and the somatosensory system (due to polyneuropathy) was studied. With eyes open the patient was able to stand and walk slowly. With eyes closed he lost balance within one second. In order to optimise visual stabilisation he intuitively searched for nearby visual targets. His postural sway was recorded using posturography. His balance performance deteriorated significantly beyond a distance of 1 m between the eyes and the surrounding objects and with visual acuity below 0.3 (experimentally achieved with semitransparent plastic foils). With flicker illumination of decreasing frequencies of the visual surround he needed at least a visual input rate of 17 Hz in order to maintain an upright body position. The data provide clinical evidence for rapid visuo-spinal control of posture.