Yamauchi Masaki, Imanaka Kuniyasu, Nakayama Masao, Nishizawa Sho
Department of Health and Physical Education, Faculty of Education, Nagasaki University, Japan.
Percept Mot Skills. 2004 Jun;98(3 Pt 2):1199-209. doi: 10.2466/pms.98.3c.1199-1209.
We investigated the transfer of an arm-positioning movement between the right and left arms of right and left handers. 30 male (15 strong right handers and 15 strong left handers) subjects were asked to perform a constrained criterion movement, 12 cm in length, with right or left arm and a test movement at estimated 6-, 12-, or 24-cm length with the contralateral arm. In the right handers, the constant error of the left arm test movement was near zero, and that of the right arm indicated overshooting. In the left handers, the constant errors of the left arm test movement were farther from zero than those of right arm test movement. Left handers as well as right handers showed manual asymmetry on positioning movement. A plausible explanation for the manual asymmetry on the arm-positioning task is related to interhemispheric transfer of spatial information on positioning movement.
我们研究了右利手和左利手的左右臂之间手臂定位运动的转移。30名男性受试者（15名强右利手和15名强左利手）被要求用右臂或左臂进行一个长度为12厘米的受限标准运动，并用对侧手臂进行估计长度为6厘米、12厘米或24厘米的测试运动。在右利手中，左臂测试运动的恒定误差接近零，而右臂的恒定误差则显示出超调。在左利手中，左臂测试运动的恒定误差比右臂测试运动的恒定误差离零更远。左利手和右利手在定位运动上均表现出手动不对称。对于手臂定位任务中手动不对称的一个合理的解释与定位运动的空间信息的半球间转移有关。
Zotero 插件