Adam Jos J, Parthoens Stijn, Pratt Jay
Department of Movement Sciences, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
Hum Mov Sci. 2006 Jun;25(3):293-309. doi: 10.1016/j.humov.2006.03.005. Epub 2006 May 2.
This study examined developmental effects in the ability to use precue information for the planning of keypress and reaching responses. Participants from four age groups (7, 9, 13, and 21 year olds) performed a spatial precuing task either by pressing one of four response keys (keypress task) or by reaching directly toward one of the four target locations on the screen (reaching task). Reaction time data revealed striking age differences in the ability to use advance information in the keypress task, not in the reaching task. This dissociation confirms the hypothesis that distinct and separate mechanisms govern the planning of indirect keypress and direct reaching responses.
本研究考察了利用预提示信息来计划按键和伸手反应能力的发展效应。来自四个年龄组（7岁、9岁、13岁和21岁）的参与者执行了一项空间预提示任务，要么通过按下四个反应键之一（按键任务），要么通过直接伸手触摸屏幕上的四个目标位置之一（伸手任务）。反应时间数据显示，在按键任务中利用提前信息的能力存在显著的年龄差异，而在伸手任务中则不存在。这种分离证实了如下假设，即不同的机制分别控制间接按键反应和直接伸手反应的计划。
