Human motor adaptation in whole body motion.
Human motor adaptation in whole body motion.
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DOI：
10.1038/srep32868
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发表时间：
2016-09-09
影响因子：
4.6
通讯作者：
Kawato M
中科院分区：
文献类型：
--
作者：
Babič J;Oztop E;Kawato M
生物体的感觉运动系统的主要作用是增加物种的生存。因此，为了理解运动控制的适应性和最优性机制，有必要从生态适应性的角度来研究感觉运动系统。我们设计了一个实验范式，暴露感觉运动系统的损伤风险。我们研究了人类受试者进行不受约束的下蹲到站立运动，这些运动系统地受到非微不足道的干扰。我们发现，受试者通过积极补偿扰动来适应，收敛到与正常的不受干扰的蹲站运动不同的运动。此外，被试的适应动作具有明显的个体间差异，这可以通过被试所采用的不同适应策略来解释。这些结果表明，经典的最优性措施的体力和任务满意度应被视为一个层次的最优性组织的一部分，安全是在最高级别。因此，在分析人体运动时，除了体力和任务完成之外，还必须考虑受伤的风险和其他可能的成本，如神经计算开销。
The main role of the sensorimotor system of an organism is to increase the survival of the species. Therefore, to understand the adaptation and optimality mechanisms of motor control, it is necessary to study the sensorimotor system in terms of ecological fitness. We designed an experimental paradigm that exposed sensorimotor system to risk of injury. We studied human subjects performing uncon- strained squat-to-stand movements that were systematically subjected to non-trivial perturbation. We found that subjects adapted by actively compensating the perturbations, converging to movements that were different from their normal unperturbed squat-to-stand movements. Furthermore, the adapted movements had clear intrinsic inter-subject differences which could be explained by different adapta- tion strategies employed by the subjects. These results suggest that classical optimality measures of physical energy and task satisfaction should be seen as part of a hierarchical organization of optimality with safety being at the highest level. Therefore, in addition to physical energy and task fulfillment, the risk of injury and other possible costs such as neural computational overhead have to be considered when analyzing human movement.
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影响因子：
64.8
作者：
Harris, CM;Wolpert, DM
通讯作者：
Wolpert, DM
DOI：
10.1109/tnsre.2009.2032620
发表时间：
2009-12-01
影响因子：
4.9
作者：
Betker, Aimee L.;Szturm, Tony;Moussavi, Zahra M. K.
通讯作者：
Moussavi, Zahra M. K.
影响因子：
1.8
作者：
LACQUANITI, F;TERZUOLO, C;VIVIANI, P
通讯作者：
VIVIANI, P
影响因子：
64.8
作者：
Burdet, E;Osu, R;Kawato, M
通讯作者：
Kawato, M
影响因子：
2
作者：
Kingma, I;Toussaint, HM;Savelsbergh, GJP
通讯作者：
Savelsbergh, GJP