Macaulay Timothy R, Wood Scott J, Bollinger Austin, Schubert Michael C, Shelhamer Mark, Bishop Michael O, Reschke Millard F, Clément Gilles
KBR, Houston, TX 77058, USA.
Neuroscience Laboratory, NASA Johnson Space Center, Houston, TX 77058, USA.
Brain Sci. 2023 Jan 23;13(2):189. doi: 10.3390/brainsci13020189.
A better understanding of how vestibular asymmetry manifests across tests is important due to its potential implications for balance dysfunction, motion sickness susceptibility, and adaptation to new environments.
We report the results of multiple tests for vestibular asymmetry in 32 healthy participants.
Asymmetry was measured using perceptual reports during unilateral centrifugation, oculomotor responses during visual alignment tasks, vestibulo-ocular reflex gain during head impulse tests, and body rotation during stepping tests.
A significant correlation was observed between asymmetries of subjective visual vertical and verbal report during unilateral centrifugation. Another significant correlation was observed between the asymmetries of ocular alignment, vestibulo-ocular reflex gain, and body rotation.
These data suggest that there are underlying vestibular asymmetries in healthy individuals that are consistent across various vestibular challenges. In addition, these findings have value in guiding test selection during experimental design for assessing vestibular asymmetry in healthy adults.
鉴于前庭不对称在平衡功能障碍、晕动病易感性和对新环境适应方面的潜在影响，更好地理解其在各项测试中的表现具有重要意义。
我们报告了32名健康参与者的多项前庭不对称测试结果。
在前庭不对称测试中，通过单侧离心过程中的感知报告、视觉对齐任务中的动眼反应、头部脉冲测试中的前庭眼反射增益以及踏步测试中的身体旋转来测量不对称性。
在单侧离心过程中，主观视觉垂直与言语报告的不对称性之间存在显著相关性。在眼位对齐、前庭眼反射增益和身体旋转的不对称性之间也观察到另一个显著相关性。
这些数据表明，健康个体中存在潜在的前庭不对称，且在各种前庭挑战中保持一致。此外，这些发现对于指导在评估健康成年人前庭不对称的实验设计过程中的测试选择具有价值。
