Investigation of the muscle-tendon driven system of the finger on analysis of the higher brain function using NIRS and the pseudo-inverse matrix structure.

虽然指骨关节的位置和关节处肌肉/肌腱的形态在受试者之间存在数值上的差异，但肌肉/肌腱的功能在受试者之间是共同的。虽然被试在指尖细力的操作中肌肉/肌腱的作用不同，但在某些情况下可以进行分类。使用基于MRI数据的肌腱驱动模型解释了分类。在精细指尖用力的操作中，手指的可操控性取决于手指的姿势。控制指尖的大脑活动变化是为了调整肌肉力量以适应手指可操控性的变化。这些结论表明，运动学习的神经机制可能取决于肌肉/肌腱即被控对象的特征。这可能为运动神经生理学的研究提供新的见解。

While the position of the phalangeal joint and the configuration of the muscles/tendons at the joint were numerically different among the subjects, the function of the muscles/tendons was common among them. While the roles of the muscles/tendons were different among the subjects in the manipulation of the fine fingertip force, the roles were able to be classified into some cases. The classification was explained using the tendon driven models developed on the MRI data. In the manipulation of the fine fingertip force, the manipulability of the finger depends on the finger posture. The brain activity controlling the fingertip changes in order to adjust the muscle forces to the variation of the manipulability of the finger. The conclusions indicate the possibility that the neural mechanism of the motor learning depends on the characteristics of the muscles/tendons, i. e. the controlled object. This could provide new insights for research into motor nerves physiology.