[A study of compensatory eye movements induced by sinusoidal linear accelerations--frequency response of the maculo-ocular reflex and the functional polarity of the otolith organ in human subjects].
[A study of compensatory eye movements induced by sinusoidal linear accelerations--frequency response of the maculo-ocular reflex and the functional polarity of the otolith organ in human subjects].
复制标题
正弦线性加速度引起的代偿性眼球运动研究——人体黄斑眼反射的频率响应和耳石器官的功能极性。
DOI：
10.3950/jibiinkoka.90.335
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
A. Fujino
中科院分区：
文献类型：
--
作者：
A. Fujino
本文研究了正常人受试者在三个不同方向（即向前和向后、双耳和对角方向）的水平正弦线性加速度下的黄斑眼反射的频率响应。材料与方法利用电动椅研究了74名正常人在沿双耳轴沿着的水平正弦线加速度作用下的眼动。要求受试者坐在椅子上，头部和身体受到约束。使用振幅为25 cm、频率为0.25、0.33和0.5 Hz的振荡产生的水平线加速度。在眼震电图上记录了眼动，并计算了眼位与头位在水平方向上的增益和相位差，在第二阶段，计算了眼位与头位在三个不同方向上的正弦线加速度的频率响应，并计算了眼位与头位在水平方向上的增益和相位差，在第三阶段，计算了眼位与头位在三个不同方向上的正弦线加速度的频率响应，并计算了眼位与头位在水平方向上的增益和相位差，在第四阶段，计算了眼位与头位在三个不同方向上的频率响应在20名正常人（10名男性，10名女性）中比较了（前后，双耳和对角）。再次以上述方式计算增益和相位差，并通过方差分析进行统计检验，以检测以下因素的影响：性别、刺激方向和摆动频率。结果在频率为0. 2 5、0. 33和0. 5 Hz时，头部沿双耳轴沿着作被动正弦运动引起的代偿性眼动的平均振幅（峰峰值）分别为3、4和7度。在0.25 ~ 0.5Hz的频率范围内，增益以约6dB/oct的斜率增加。0度左右的相位差无明显变化，沿着双耳轴刺激时增益最大，沿沿着对角轴刺激时增益较小（p<0.05）。在沿前后轴沿着刺激的情况下，它可以忽略不计。然而，在任何试验中均未获得相位差的显著变化。两性的反应没有显示出任何差异。
The frequency-response of the maculo-ocular reflex related to horizontal sinusoidal linear accelerations in three different directions (i.e. forwards and backwards, binaurally and diagonally to the head) was studied in normal human subjects. Materials and MethodIn 74 normal subjects, eye movements induced by horizontal sinusoidal linear accelerations along the binaural axis, were studied by using an electrically driven chair. A subject was asked to sit down on the chair with head and body restrained. Horizontal linear accelerations produced by using oscillations with an amplitude of 25cm, and frequencies of 0.25, 0.33 and 0.5Hz. The induced eye movements were recorded electronystagmographically with eyes covered.In all cases, both the gain and phase difference of the eye position versus the head position in the horizontal direction, were calculated from the averaged response of five consecutive swings for each frequency.In the second stage, the frequency responses related to the sinusoidal linear accelerations in three different directions (forwards-backwards, binaurally, and diagonally) were compared in 20 normals (10 males, 10 females). The gain and phase differences were again calculated in the above-mentioned way, and a statistical test by analysis of variance was used to detect the influence of the following factors; sex, stimulus direction, and frequency of the swing motions. ResultsThe averaged amplitudes, viz. peak to peak values of the compensatory eye movements induced by passive sinusoidal motions of the head along the binaural axis, with frequencies of 0.25, 0.33 and 0.5Hz, were 3, 4, and 7 degrees, respectively. The gain increased with a slope of about 6 dB/oct in the frequency range from 0.25 to 0.5Hz. The phase difference of about zero degrees did not change significantly.The gain was largest in cases of the stimulation along the binaural axis, and less, when stimulation was along the diagonal axis (p<0.05). It was negligible in the cases of stimulation along the forwards-backwards axis. However, the significant change in phase difference was not obtained in any of the trials. The responses in both sexes did not show any difference.