Highs and Lows in Motor Control Development
Highs and Lows in Motor Control Development
复制标题
电机控制发展的高潮和低谷
DOI：
10.1080/00222895.2019.1643283
复制
发表时间：
2019
影响因子：
1.4
通讯作者：
Alice Catherine Roy
中科院分区：
文献类型：
--
作者：
M. Martel;P. Fourneret;L. Finos;C. Schmitz;Alice Catherine Roy
摘要电机控制通常被描述为依赖于两部分：预期控制（前馈处理）和在线控制（反馈处理）。在这里，我们旨在揭示5-10岁儿童的反馈和前馈控制的发展步骤，使用一个简单的生态任务。我们在可及置换范式中操纵了物体的重量。当在举起重量之前就知道重量时，预期过程在到达阶段是可量化的。相反，在置换阶段，一个未知的重量触发了在线修正。运动运动学显示，儿童在5岁至6岁时就预料到这种物体的特性。这种预期在7 y-o左右变得足够，并且与在线修正差相平行。这个简单但相关的范例应该允许量化运动控制障碍中神经典型模式的偏差。
Abstract Motor control is classically described as relying on two components: anticipatory control (feedforward processing) and online control (feedback processing). Here we aimed to unveil the developmental steps of both feedback and feedforward control in 5–10 years old children, using a simple and ecological task. We manipulated object’s weight in a reach-to-displace paradigm. When the weight was known before lifting it, anticipatory processes were quantifiable during the reaching phase. Conversely, an unknown weight triggered online corrections during the displacing phase. Movement kinematics revealed that children anticipate this objet property as young as 5 y-o. This anticipation becomes adequate around 7 y-o and is paralleled by poor online corrections. This simple yet relevant paradigm should allow quantifying deviations from neurotypical patterns in disorders of motor control.