Formica Domenico, Campolo Domenico, Taffoni Fabrizio, Keller Flavio, Guglielmelli Eugenio
Laboratory of Biomedical Robotics and Biomicrosystems, Università Campus Bio-Medico di Roma, 00218 Rome, Italy.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:4046-9. doi: 10.1109/IEMBS.2011.6091005.
This study analyzes motor adaptation during a redundant tasks with the wrist. The goal is threefold: (i) understanding if motor adaptation also occurs when CNS is involved in the solution of the redundancy problem; (ii) addressing whether motor strategies used to solve redundancy (i.e Donders' law) are disrupted or not during adaptation; (iii) verifying if motor strategies remain the same during adaptation and washout or they themselves adapt. First of all, our data confirm that CNS adapts its movements to the perturbation also when it is committed in the execution of a redundant task. Secondly, we showed that motor strategies used to solve redundancy (i.e Donders' law) are not disrupted during adaptation, since absolute values of thickness during the whole protocol remain in the range of physiological values. Lastly, analysis of the curvature of Donders' surfaces suggests that motor strategies, such as Donders' law, remain invariant during motor adaptation in redundant tasks.
本研究分析了手腕在执行冗余任务期间的运动适应性。目标有三个：（i）了解当中枢神经系统参与解决冗余问题时是否也会发生运动适应；（ii）探讨用于解决冗余问题的运动策略（即东德斯定律）在适应过程中是否受到干扰；（iii）验证运动策略在适应和消退过程中是否保持不变，或者它们自身是否会发生适应。首先，我们的数据证实，即使中枢神经系统致力于执行冗余任务，它也会使其运动适应扰动。其次，我们表明，用于解决冗余问题的运动策略（即东德斯定律）在适应过程中不会受到干扰，因为在整个实验过程中厚度的绝对值保持在生理值范围内。最后，对东德斯曲面曲率的分析表明，诸如东德斯定律之类的运动策略在冗余任务的运动适应过程中保持不变。
