Prospective organization of neonatal arm movements: A motor foundation of embodied agency, disrupted in premature birth.
Prospective organization of neonatal arm movements: A motor foundation of embodied agency, disrupted in premature birth.
复制标题
新生儿手臂运动的预期组织：体现机构的运动基础，在早产中被破坏。
DOI：
10.1111/desc.12693
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发表时间：
2018-11
影响因子：
3.7
通讯作者：
Lee DN
中科院分区：
文献类型：
--
作者：
Delafield-Butt JT;Freer Y;Perkins J;Skulina D;Schögler B;Lee DN
前瞻性运动控制将身体带入未来，从一个人现在所在的位置到一个人想要去的地方。这是意向性的标志。但其发展起源尚不确定。在这项研究中，我们测试了新生儿的手臂运动是否受到前瞻性控制。我们测量了 480 个足月新生儿手臂运动和 384 个有神经发育障碍风险的早产儿手臂运动的时空组织。我们发现 75% 的健康足月新生儿运动和 68% 的早产婴儿运动符合前瞻性感觉运动控制的 τ G 耦合模型。后者的预期耦合值显着降低（p = .010，r = .087）。在这两种情况下，前瞻性控制的运动都由基本持续时间为 218 毫秒的固定持续时间单元和 145 毫秒的附加时间单元紧密组织。然而距离保持不变。因此，我们首次证明了新生儿手臂运动的精确前瞻性时空组织，并证明高危婴儿表现出感觉运动控制能力下降。前瞻性运动控制是初级感觉运动意向性的标志，并为有意识的运动机构提供了坚实的具体基础。
Prospective motor control moves the body into the future, from where one is to where one wants to be. It is a hallmark of intentionality. But its origin in development is uncertain. In this study, we tested whether or not the arm movements of newborn infants were prospectively controlled. We measured the spatiotemporal organization of 480 full‐term neonatal arm movements and 384 arm movements of prematurely born infants at‐risk for neurodevelopmental disorder. We found 75% of healthy term‐birth neonatal movements and 68% of prematurely born infant movements conformed to the τ G‐coupling model of prospective sensorimotor control. Prospective coupling values were significantly reduced in the latter (p = .010, r = .087). In both cases prospectively controlled movements were tightly organized by fixed‐duration units with a base duration of 218 ms and additional temporal units of 145 ms. Yet distances remained constant. Thus, we demonstrate for the first time a precise prospective spatiotemporal organization of neonatal arm movements and demonstrate that at‐risk infants exhibit reduced sensorimotor control. Prospective motor control is a hallmark of primary sensorimotor intentionality and gives a strong embodied foundation to conscious motor agency.
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