Perceptual adaptation during a balancing task in the seated posture and its theoretical model
Perceptual adaptation during a balancing task in the seated posture and its theoretical model
复制标题
坐姿平衡任务中的知觉适应及其理论模型
DOI：
10.1007/s00422-021-00873-x
复制
发表时间：
2021
影响因子：
1.9
通讯作者：
Ryosuke Morita
中科院分区：
文献类型：
--
作者：
Satoshi ito;Kazuya Tomabichi;Ryosuke Morita
本文提出了人体平衡的控制和感知机制的理论模型。人体平衡感知通过主观直立姿势来评估，在该姿势下，人不会感觉到他/她处于倾斜状态。我们的坐姿平衡实验表明，主观直立姿势改变后，平衡任务，参与者需要倾斜，以保持他们的平衡。本文旨在通过计算机模拟再现实验结果来解释这种自适应现象。假设“人类逐渐认识到他们需要采取的姿势来保持他们的平衡为直立”，定义主观直立姿势的适应规则，使得其接近平衡任务期间的平均姿势。对于平衡控制，采用压力中心反馈。结果表明，在主观直立姿势的类似变化模拟与一个基础链接的两个链接模型，这意味着我们的假设是一个可能的解释机制，人类的平衡控制和感知。
This paper proposes a theoretical model of the control and perception mechanism in human balance. Human balance perception is evaluated by the subjective upright posture, the posture at which a person does not feel he/she is at an incline. Our balance experiments in the seated posture showed that the subjective upright posture changed after the balancing task where the participants needed to incline to maintain their balance. This paper aimed to explain this adaptive phenomenon by reproducing the experimental results using computer simulations. Hypothesizing that “humans gradually come to recognize the posture they need to take to maintain their balance as being upright,” an adaptation rule for subjective upright posture is defined, so that it approaches the averaged posture in the period of the balancing task. For the balance control, center of pressure feedback is adopted. As a result, the similar changes in subjective upright posture are simulated with a two-link model with a base link, implying that our hypothesis is one possible explanation on the mechanism for human balance control and perception.