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目的 研制便携式主观视觉垂直线(SVV)知觉检测仪,提供耳石器功能检测设备。 方法 便携式SVV知觉检测仪由主机、受检者控制设备、充电设备构成。暗室条件下,受检者通过操纵主机上的光标移动到自认为的“重力垂直线”位置,根据光标与实际重力垂直线的偏差判断两侧耳石器功能是否对称。受试者为8名青年健康男性志愿者,在静坐和转椅90°/s轴心旋转时分别进行4次SVV检测,每次间隔1 d。 结果 4次检测结果之间没有显著差别(P>0 05),但90°/s转椅轴心旋转与静坐时的SVV数据间有显著差别(P<0 05),转椅轴心旋转时的SVV数据要高于静坐时的检测数据。 结论 便携式SVV知觉检测仪具有良好的重复性和有效性,可以用于人体耳石功能检测,具有良好的应用前景。
Objective To develop portable subjective visual vertical line (SVV) perception detector to provide otolith device function testing equipment. Methods The portable SVV perception detector consists of a host, a subject control device and a charging device. Under darkroom conditions, the subject moves to the “vertical line of gravity” position of the host by manipulating the cursor on the host computer to judge whether the functions of the two side otolith devices are symmetrical according to the deviation between the cursor and the actual vertical line of gravity. The subjects were 8 healthy young male volunteers who underwent 4 SVV tests at a rotational angle of 90 ° / s swivel chair for 1 day at a time. Results There was no significant difference between the four test results (P> 0.05), but there was a significant difference (P <0.05) between the rotation of 90 ° / s swivel chair and sitting SVT data. The SVV Data is higher than the test data when sitting. Conclusion Portable SVV perception detector has good repeatability and validity, which can be used for the detection of human otoliths and has good application prospects.