Magnusson M, Johansson R
Department of Otorhinolaryngology University Hospital of Lund, Sweden.
Acta Otolaryngol Suppl. 1993;503:47-8. doi: 10.3109/00016489309128070.
Postural control was studied in 22 subjects with vestibular neruitis within 14 days after the onset of symptoms. Dynamic feed back control of posture were evaluated by analyzing the postural responses to vibration toward calf muscles applied according to a PRBS schedule. Properties of the dynamic control was normalized as swiftness, stiffness and damping of the responses. There was no prominent group differences between the 22 subjects with vestibular neuritis and 17 normal subjects. However, when studying the change in parameters evoked by presence or absence of visual information it was found that the abundant changes of control parameters, especially in stiffness, met in normal subjects had declined in subjects with vestibular neuritis. The present finding suggests that although subjects after an acute vestibular lesion may achieve a sufficient postural control by utilizing information from other somatosensory receptors, this is concomitant with changes of the feed back control.
在症状出现后的14天内，对22例前庭神经炎患者的姿势控制进行了研究。通过分析根据伪随机二进制序列（PRBS）方案对小腿肌肉施加振动后的姿势反应，评估姿势的动态反馈控制。将动态控制的特性标准化为反应的敏捷性、刚度和阻尼。22例前庭神经炎患者与17例正常受试者之间没有显著的组间差异。然而，在研究有无视觉信息引起的参数变化时发现，正常受试者中出现的控制参数的大量变化，尤其是刚度方面的变化，在前庭神经炎患者中有所下降。目前的研究结果表明，虽然急性前庭病变后的受试者可能通过利用来自其他躯体感觉受体的信息实现足够的姿势控制，但这伴随着反馈控制的变化。
