Harley Linda R, Prilutsky Boris I
Georgia Tech Research Institute, Atlanta, GA 30332, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:6785-8. doi: 10.1109/EMBC.2012.6347552.
This study examined how movement of one arm affects the rate of motor adaptation of the other arm during bimanual reaching in a viscous force-field. Forty healthy adult subjects performed four reaching tasks: (1) by dominant arm, (2) by nondominant arm, (3) by both arms with only dominant arm experiencing force-field and (4) by both arms with only nondominant arm experiencing the force-field. For dominant arm rate of motor adaptation was greater during the bimanual task than the unimanual task. For nondominant arm reaching errors were higher during the bimanual than unimanual task. These results suggest that during bimanual reaching, transfer of learning between arms occur in both directions and movement information transferred depends on arm dominance.
本研究考察了在粘性力场中双手伸展时，一只手臂的运动如何影响另一只手臂的运动适应速率。40名健康成年受试者进行了四项伸展任务：（1）用优势手臂，（2）用非优势手臂，（3）双手同时进行，仅优势手臂受力场影响，（4）双手同时进行，仅非优势手臂受力场影响。对于优势手臂，双手任务中的运动适应速率高于单手任务。对于非优势手臂，双手任务中的伸展误差高于单手任务。这些结果表明，在双手伸展过程中，手臂之间的学习迁移在两个方向上都会发生，且所传递的运动信息取决于手臂的优势情况。
