NEW APPROACH TO VESTIBULAR TESTING

这个分项目的中心主题是评估 前庭功能在功能上对正常 受试者和患者。传统的测试不是在自然条件下进行的。 条件，因此可能不反映系统的真实机制。 这个分项目有四个具体目标。首先是角度和线性 前庭-眼反射和视觉前庭相互作用将是 在正常行走、站立和跑步条件下进行定量 受试者和前庭综合征患者。二、偏心 耳石功能的旋转测试将开发联合收割机线性 俯仰和偏航角旋转的加速度。第三，VOR 在偏航和俯仰两种情况下启动都将作为一种功能性的 前庭试验第四，将开发动态视力测试 作为注视稳定期间前庭性能的指标。磁 搜索线圈和磁通门传感器将用于精确 眼睛和头部运动的测量。老化的影响，外周 前庭损失和小脑功能障碍将评估这些 反射

The central theme of this subproject is the assessment of aspects of vestibular performance that are functionally significant to normal subjects and patients. Traditional tests are not conducted under natural conditions and thus may not be reflective of the systems true mechanisms. This subproject has four specific aims. First the angular and linear vestibulo-ocular reflexes and visual vestibular interaction will be quantified during walking, standing, and running conditions in normal subjects and patients with vestibular syndromes. Second, eccentric rotation tests of otolithic function will be developed that combine linear acceleration with angular rotations in pitch and yaw. Third, the VOR initiation in both yaw and pitch will be evaluate as a functional vestibular test. Fourth, tests of dynamic visual acuity will be developed as an index of vestibular performance during gaze stabilization. Magnetic search coil and flux gate sensors will be used to make precise measurements of eye and head movements. Effects of aging, peripheral vestibular loss and cerebellar dysfunction will be assessed on these reflexes.