Department of Psychology and Neuroscience, University of Colorado, Boulder 345 UCB, Boulder, CO 80309, United States.
Hum Mov Sci. 2012 Feb;31(1):12-25. doi: 10.1016/j.humov.2011.06.001. Epub 2011 Jul 20.
Lohse, Sherwood, and Healy (2010) found that an external focus of attention (FOA) improved performance in a dart-throwing task and reduced the time taken between throws, but using the time between trials as a measure of preparation time is relatively crude. Thus, the current experiment analyzed how FOA affects accuracy and pre-movement time in an isometric force production task, to study how FOA affected motor planning. In the current experiment, training with an external focus improved the accuracy of the isometric force production task during training and during retention and transfer testing. During training, an external FOA also significantly reduced pre-movement time in early trials. These findings are interpreted as reduced explicit control of movement as a function of an external FOA, and help to integrate FOA research with other motor control phenomena and neuropsychological theories of motor control.
洛希、舍伍德和希利(2010)发现,外部注意焦点(FOA)提高了投掷飞镖任务的表现,并减少了投掷之间的时间间隔,但使用试验之间的时间作为准备时间的度量相对粗糙。因此,当前实验分析了 FOA 如何影响等距力量产生任务中的准确性和预运动时间,以研究 FOA 如何影响运动规划。在当前的实验中,使用外部焦点进行训练可以提高等距力量产生任务在训练期间以及在保持和转移测试期间的准确性。在训练期间,外部 FOA 还显著减少了早期试验中的预运动时间。这些发现被解释为作为外部 FOA 的函数,运动的显式控制减少,并且有助于将 FOA 研究与其他运动控制现象和运动控制的神经心理学理论相结合。