Adjustment to a complex visuo-motor transformation at early and late working age
Adjustment to a complex visuo-motor transformation at early and late working age
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DOI：
10.1080/00140130902912795
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发表时间：
2009-09-01
期刊：
影响因子：
2.4
通讯作者：
Hegele, Mathias
中科院分区：
文献类型：
--
作者：
Heuer, Herbert;Hegele, Mathias
研究了与年龄相关的视觉运动转换调整的变化，以模拟腹腔镜手术中遇到的复杂转换。两个年龄段的目标动作的动作时间最初几乎相同，但在练习过程中有所不同。在没有视觉反馈的测试阶段，没有观察到与年龄相关的适应性变化的变化以及手部运动的幅度和曲率的后效应，但仅观察到它们的方向。定向适应性转变呈双峰分布，一种模式接近完美适应（“适配器”），另一种模式接近缺乏适应（“非适配器”）。在年轻参与者中，适配器比年老参与者更频繁。这些发现将先前关于与年龄相关的调整变化的结果扩展到简单转换到复杂转换。它们与这样的说法是一致的，即与年龄相关的视觉运动旋转调整的变化主要是由于策略修正的损害而引起的。基础研究成果和实验室外遇到的转变之间建立了联系：在较高的工作年龄中受到影响的是视觉运动旋转的明确知识以及基于它的策略修正。这表明为年龄较大的人提供了获取显性知识的机会。
Age-related changes of adjustment to visuo-motor transformations were Studied for a complex transformation modelled after those encountered in laparoscopic surgery. Movement times of aimed movements were initially almost identical for the two age groups and diverged in the course of practice. In test phases without visual feedback, no age-related variation of the adaptive shifts and after effects of amplitude and curvature of hand movements were observed, but only of their direction. Directional adaptive shifts were bimodally distributed, with one mode near to perfect adaptation ('adapters') and the other one near to absence of adaptation ('non-adapters'). Among the young participants, adapters were more frequent than among the old participants. These findings extend previous results on age-related changes of adjustment to simple transformations to complex transformations. They are consistent with the claim that age-related changes of adjustment to visuo-motor rotations come about primarily by impairments of strategic corrections. A link is established between basic-research findings and transformations encountered outside the laboratory: what suffers at higher working age is explicit knowledge of visuo-motor rotations and the strategic corrections based on it. This suggests the provision of opportunities for explicit-knowledge acquisition for those of a higher age.