The effects of spatial movement components precues on the execution of rapid aiming in children aged 7, 9, and 11
The effects of spatial movement components precues on the execution of rapid aiming in children aged 7, 9, and 11
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DOI：
10.1006/jecp.1999.2558
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发表时间：
2000-10-01
影响因子：
2.6
通讯作者：
Bard, C
中科院分区：
文献类型：
--
作者：
Olivier, I;Bard, C
本研究的目的有两个：首先，调查空间预提示对 7、9 和 11 岁儿童执行快速瞄准的影响；其次，为研究预提示在时间限制下执行的瞄准任务中的作用提供运动学支持。使用四种预提示条件，参与者收到：（a）没有任何类型的预提示，（b）有关方向的预先信息，（c）有关幅度的预先信息，以及（d）有关即将发生的运动的完整信息。我们的结果表明，预先准备运动的空间维度可以缩短反应时间，这种缩短是预先准备的参数数量的函数，并且空间预先准备可以改变儿童快速瞄准运动的运动学。峰值速度随着方向和/或幅度的增加而增加，表明预兆在运动准备中发挥着重要作用。此外，准确度结果表明方向预知会引起主动的方向调节。最后，方向和幅度似乎在儿童中是独立指定的，(C) 2000 学术出版社。
The aim of the present study was twofold: first, to investigate the effects of spatial precues on the execution of rapid aiming in children aged 7, 9, and 11 and second, to provide a kinematic support to the investigation of the role of precues in aiming tasks performed under temporal constraints. Four precuing conditions were used, where participants received: (a) no precue of any type, (b) advance information on direction, (c) advance information on amplitude, and (d) complete information on the forthcoming movement. Our results showed that precuing the spatial dimensions of movement shortens reaction times, that such shortening is a function of the number of precued parameters, and that spatial precues modify the kinematics of the children's rapid aiming movements. Peak velocity increased with direction and/or amplitude, suggesting that precues play a significant role in motor preparation. Moreover, the accuracy results indicate that direction precuing induces a proactive directional regulation. Finally, direction and amplitude appear to be independently specified in children, (C) 2000 Academic Press.