Garrett S R, Pagano C, Austin G, Turvey M T
Center for the Ecological Study of Perception and Action, University of Connecticut, Storrs 06268, USA.
Percept Psychophys. 1998 Oct;60(7):1206-15. doi: 10.3758/bf03206170.
Splints attached to the right forearm were used to rotate the forearm's physical reference frame, as defined by the eigenvectors of its inertia tensor, relative to its spatial reference frame. In two experiments, when subjects were required to orient the forearm parallel to, or at 45 degrees to, the environmental horizontal, they produced limb orientations that were systematically deflected from the forearm's longitudinal spatial axis in the direction of the forearm's physical axes. The position sense seems to be based on inertial eigenvectors rather than on joint angles or gravitational torques.
附着于右前臂的夹板用于使前臂的物理参考系（由其惯性张量的特征向量定义）相对于其空间参考系进行旋转。在两项实验中，当要求受试者将前臂与环境水平面相平行或成45度角定向时，他们产生的肢体定向会在前臂物理轴方向上系统性地偏离前臂的纵向空间轴。位置感知似乎基于惯性特征向量，而非关节角度或重力扭矩。
