Influences of the perception of self-motion on postural parameters
Influences of the perception of self-motion on postural parameters
复制标题
DOI：
10.1089/cpb.2006.9.163
复制
发表时间：
2006-04-01
期刊：
影响因子：
--
通讯作者：
Kenyon, R. V.
中科院分区：
文献类型：
--
作者：
Keshner, E. A.;Dokka, K.;Kenyon, R. V.
我们研究了由恒定速度视觉运动产生的自我运动感知的空间和时间特征如何反映在站在CAVE（R）中的年轻人的头部和全身的方向上，CAVE（R）是一种虚拟环境，呈现具有上下文和纹理的宽视野立体图像。记录了来自力板的压力中心响应和通过手持棒的方向的自我运动的感知。自我运动的知觉对姿势运动学的影响因视觉运动的平面和复杂性而异。通过自我运动的感知产生的姿势行为似乎包含了皮质整合的视觉和前庭信号以及其他体感输入的汇合。这表明，在环境中的运动过程中的空间表示是由上升和下降控制修改。我们从这些数据中推断，视觉环境的运动可以用作影响姿势和空间方向的治疗工具，特别是对于中枢神经系统（CNS）损伤后视觉更敏感的个体。
We examined how spatial and temporal characteristics of the perception of self-motion, generated by constant velocity visual motion, was reflected in orientation of the head and whole body of young adults standing in a CAVE (R), a virtual environment that presents wide field of view stereo images with context and texture. Center of pressure responses from a force plate and perception of self-motion through orientation of a hand-held wand were recorded. The influence of the perception of self-motion on postural kinematics differed depending upon the plane and complexity of visual motion. Postural behaviors generated through the perception of self-motion appeared to contain a confluence of the cortically integrated visual and vestibular signals and of other somatosensory inputs. This would suggest that spatial representation during motion in the environment is modified by both ascending and descending controls. We infer from these data that motion of the visual surround can be used as a therapeutic tool to influence posture and spatial orientation, particularly in more visually sensitive individuals following central nervous system (CNS) impairment.