Hiraga C Y, Summers J J, Temprado J J
Human Motor Control Laboratory, School of Psychology, University of Tasmania, Private Bag 30, Hobart, 7001 TAS, Australia.
Hum Mov Sci. 2005 Oct-Dec;24(5-6):815-32. doi: 10.1016/j.humov.2005.10.010. Epub 2005 Dec 6.
This study aimed to examine the effects of directing attention to the spatial dimension of the circle-drawing task on interlimb coordination patterns across limbs. Eighteen participants performed a circle-drawing task involving in-phase and antiphase coordination modes under upper limb, contralateral and ipsilateral limb combinations. Results indicated that (a) coordination pattern stability co-varied with central cost when attentional focus was directed to the spatial dimensions of the interlimb circle-drawing task; (b) attentional focus on the spatial components modified the inherent performance asymmetries between the limbs; (c) finally, attention to the spatial components of the interlimb circle-drawing task modulated movement trajectories and at the same time the stability of temporal coordination.
本研究旨在考察将注意力导向画圆任务的空间维度对四肢间肢体协调模式的影响。18名参与者进行了一项画圆任务，该任务涉及上肢、对侧肢体和同侧肢体组合下的同相和反相协调模式。结果表明：（a）当注意力集中在肢体间画圆任务的空间维度上时，协调模式稳定性与中枢代价共同变化；（b）对空间成分的注意力集中改变了肢体间固有的表现不对称性；（c）最后，对肢体间画圆任务空间成分的注意力调节了运动轨迹，同时也调节了时间协调的稳定性。
