Perception-action interaction investigated by on-line control of visual and galvanic vestibular stimulations

本研究的目的是探讨视觉和/或前庭刺激的在线调制对人类行走和姿势控制的影响，并通过适应视觉和前庭在线调制来观察人类姿势控制的可塑性。我们发现，人类控制的姿势和行走可以定量建模的视觉和前庭信息的加权线性求和的弱融合。视觉和前庭感觉的权重因个体而异，可以改变为视觉或前庭在线调制与随意运动的长期适应方向。

The purpose of this study was to investigate effects of on-line modulation of visual and/or vestibular stimulations on human walking and postural control, and to see plasticity of human control of posture by adapting to visual and vestibular on-line modulations. We found that human control of posture and walking can be quantitatively modeled by a weak fusion of weighted linear summation of visual and vestibular information. The weights for vision and vestibular sense were different for individuals and could be changed into the direction of long-term adaptation of visual or vestibular on-line modulation with voluntary movements.