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首页> 外文期刊>Frontiers in Psychology >Modeling the Maturation of Grip Selection Planning and Action Representation: Insights from Typical and Atypical Motor Development
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Modeling the Maturation of Grip Selection Planning and Action Representation: Insights from Typical and Atypical Motor Development

机译：为握把选择计划和动作表示的成熟度建模：来自典型和非典型运动发展的见解

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We investigated the purported association between developmental changes in grip selection planning and improvements in an individual’s capacity to represent action at an internal level [i.e., motor imagery (MI)]. Participants were groups of healthy children aged 6–7 years and 8–12 years respectively, while a group of adolescents (13–17 years) and adults (18–34 years) allowed for consideration of childhood development in the broader context of motor maturation. A group of children aged 8–12 years with probable DCD (pDCD) was included as a reference group for atypical motor development. Participants’ proficiency to generate and/or engage internal action representations was inferred from performance on the hand rotation task, a well-validated measure of MI. A grip selection task designed to elicit the end-state comfort (ESC) effect provided a window into the integrity of grip selection planning. Consistent with earlier accounts, the efficiency of grip selection planning followed a non-linear developmental progression in neurotypical individuals. As expected, analysis confirmed that these developmental improvements were predicted by an increased capacity to generate and/or engage internal action representations. The profile of this association remained stable throughout the (typical) developmental spectrum. These findings are consistent with computational accounts of action planning that argue that internal action representations are associated with the expression and development of grip selection planning across typical development. However, no such association was found for our sample of children with pDCD, suggesting that individuals with atypical motor skill may adopt an alternative, sub-optimal strategy to plan their grip selection compared to their same-age control peers.
机译：我们调查了抓地力选择计划的发展变化与个人代表内部动作水平（即运动图像（MI））的能力提高之间的所谓关联。参与者分别是年龄在6-7岁和8-12岁的健康儿童组，而一组青少年（13-17岁）和成年人（18-34岁）则允许在运动发育的更广泛背景下考虑儿童发展。一组可能患有DCD（pDCD）的8-12岁儿童作为非典型运动发育的参考组。参与者从生成和/或参与内部动作表示的熟练程度是根据手部旋转任务的表现推断出来的，手部旋转任务是一种经过充分验证的MI度量。旨在产生最终状态舒适度（ESC）效果的抓地力选择任务为抓地力选择计划的完整性提供了一个窗口。与早期的研究结果一致，神经典型个体的握柄选择计划效率遵循非线性发展进程。正如预期的那样，分析证实，这些发展方面的改进是通过产生和/或参与内部行动表示的能力提高而预测的。在整个（典型的）发育范围内，这种关联的轮廓保持稳定。这些发现与行动计划的计算说明相一致，后者认为内部行动表示与整个典型开发过程中握把选择计划的表达和发展有关。但是，在我们的患有pDCD的儿童样本中未发现这种关联，这表明与同龄对照同龄人相比，具有非典型运动技能的个体可能会采用另一种次优策略来计划其抓地力选择。

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