Pagano C C, Turvey M T
Center for the Ecological Study of Perception and Action, University of Connecticut, USA.
J Exp Psychol Hum Percept Perform. 1995 Oct;21(5):1070-87. doi: 10.1037//0096-1523.21.5.1070.
The ability of humans to perceive the spatial orientation of an occluded arm was investigated. It was hypothesized that this ability is tied to the arm's inertial eigenvectors, invariant mechanical parameters corresponding to a limb's axes of rotational symmetry. By breaking the coincidence between the eigenvectors of the arm and its longitudinal axis, 3 experiments were directed at the possibility that the perceived orientation of an occluded arm would vary as a function of the eigenvectors. Overall, the angles in which the arm was positioned were affected by the direction in which the eigenvectors of the limb were oriented by small appended masses. Discussion focused on the importance of physical invariants for proprioception.
研究了人类感知被遮挡手臂空间方位的能力。据推测，这种能力与手臂的惯性特征向量有关，惯性特征向量是与肢体旋转对称轴相对应的不变机械参数。通过打破手臂特征向量与其纵轴之间的一致性，进行了3个实验，旨在探究被遮挡手臂的感知方位是否会随特征向量而变化。总体而言，手臂所处的角度会受到肢体特征向量因小附加质量而产生的定向方向的影响。讨论集中在物理不变量对本体感觉的重要性上。
