Effect of Eye-Object Distance on Body Sway during Galvanic Vestibular Stimulation.
Effect of Eye-Object Distance on Body Sway during Galvanic Vestibular Stimulation.
复制标题
眼对象距离对电向前庭刺激期间身体摇摆的影响。
DOI：
10.3390/brainsci8110191
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发表时间：
2018-10-23
期刊：
影响因子：
3.3
通讯作者：
Morishita S
中科院分区：
文献类型：
--
作者：
Aoki O;Otani Y;Morishita S
近距离注视物体（眼睛与物体的距离很小）可以减少身体的摇摆。然而，身体摇摆是否受内外侧或前后方向运动的调节仍不清楚。前庭电刺激（GVS）可以引起身体在内外侧或前后方向倾斜。本研究探讨了方向性的眼-物距离效应，使用身体倾斜GVS操作。10名健康受试者（年龄21.1 ± 0.3岁）站在覆盖有一块泡沫橡胶的测力板上，闭上眼睛或注视位于他们前方0.5 m、1.0 m或1.5 m处的标记。GVS极性被设置为引起身体的垂直、向前和向后倾斜。为了比较眼-物距离在内外侧和前后方向上的影响，从GVS期间的COP RMS中减去无GVS的压力中心（COP）的均方根（RMS）。对于中外侧方向的摆动，在垂直和向前GVS中存在显著的视觉条件相关差异（p < 0.05）。因此，减少中外侧身体摇摆是更明显的较小的眼睛物体的距离在ECORGVS。使用身体倾斜GVS来检测眼睛-物体距离效应的方向性将是适当的。
Gazing at objects at a near distance (small eye-object distance) can reduce body sway. However, whether body sway is regulated by movement in the mediolateral or anteroposterior direction remains unclear. Galvanic vestibular stimulation (GVS) can induce body tilting in the mediolateral or anteroposterior direction. This study examined the directionality of the eye-object distance effect, using body-tilting GVS manipulations. Ten healthy subjects (aged 21.1 ± 0.3 years) stood on a force plate covered with a piece of foamed rubber and either closed their eyes or gazed at a marker located 0.5 m, 1.0 m, or 1.5 m in front of them. The GVS polarities were set to evoke rightward, forward, and backward body tilts. To compare the effects of eye-object distance in the mediolateral and anteroposterior directions, the root mean square (RMS) of the center of pressure (COP) without GVS was subtracted from the COP RMS during GVS. For swaying in the mediolateral direction, significant visual condition-related differences were found during rightward and forward GVS (p < 0.05). Thus, reductions in mediolateral body sway are more evident for smaller eye-object distances during rightward GVS. It would be appropriate to use body-tilting GVS to detect the directionality of the eye-object distance effect.
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影响因子：
2
作者：
Aoki, Osamu;Otani, Yoshitaka;Domen, Kazuhisa
通讯作者：
Domen, Kazuhisa
影响因子：
2.5
作者：
Lizama, L. Eduardo Cofre;Pijnappels, Mirjam;van Dieen, Jaap H.
通讯作者：
van Dieen, Jaap H.
影响因子：
14.5
作者：
PAULUS, WM;STRAUBE, A;BRANDT, T
通讯作者：
BRANDT, T
影响因子：
2.5
作者：
Peterka, RJ
通讯作者：
Peterka, RJ
影响因子：
2
作者：
Guerraz, M;Sakellari, V;Bronstein, AM
通讯作者：
Bronstein, AM