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首页> 外文期刊>The Journal of Neuroscience: The Official Journal of the Society for Neuroscience >Generalization of object manipulation skills learned without limb motion.
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Generalization of object manipulation skills learned without limb motion.

机译：无需肢体运动即可学习到的对象操作技能的综合。

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摘要

Recent work suggests that human subjects may learn mappings between object motion and exerted torque during manipulation of freely pivoting or unstable objects. In the present work, we studied an object manipulation task involving no arm movement to determine how subjects internally represent the force-motion relationship of an object during a skilled manipulation task. Human subjects learned to balance a simulated inverted pendulum. The simulation was controlled by pressing on a fixed force sensor, and applied forces resulted in motion of the simulated pendulum on a computer screen according to its equation of motion. Each subject initially learned the task in one arm posture and was tested 1 d later in a new arm posture. In one test condition, the effects of arm torque were matched to the original task, and in the other test condition, the simulation was unchanged. The pattern of skill transfer to different arm postures suggested that subjects had learned joint torque responses rather than a general model of the object interface forces. A second experiment showed that the advantage of training with matched arm torques was object specific, because torque-matched training on a tracking task involving similar forces was not a substitute for training in the balancing task.
机译：最近的工作表明，人类受试者可能会在操纵自由旋转或不稳定物体的过程中学习物体运动与施加的扭矩之间的映射。在当前的工作中，我们研究了不涉及手臂运动的对象操纵任务，以确定对象在熟练的操纵任务中如何内部表示对象的力-运动关系。人类受试者学会了平衡模拟的倒立摆。通过按下固定力传感器来控制模拟，施加的力导致模拟摆根据其运动方程式在计算机屏幕上运动。每个对象最初都是以一个手臂姿势学习任务的，然后在1 d后以新的手臂姿势进行测试。在一个测试条件下，手臂扭矩的影响与原始任务相匹配，而在另一测试条件下，模拟保持不变。技能转移到不同手臂姿势的模式表明，受试者已经学会了关节扭矩响应，而不是对象界面力的一般模型。第二个实验表明，使用匹配的手臂扭矩进行训练的优点是针对特定对象的，因为在涉及相似力的跟踪任务上进行扭矩匹配的训练不能替代在平衡任务中进行的训练。

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