Hopkins W D, Washburn D A, Berke L, Williams M
Georgia State University, Atlanta 30303.
J Comp Psychol. 1992 Dec;106(4):392-7. doi: 10.1037/0735-7036.106.4.392.
Hand preferences were recorded for 35 rhesus monkeys (Macaca mulatta) as they manipulated a joystick in response to 2 computerized tasks. These preferences were then used to contrast 8 left- and 10 right-handed subjects on performance measures of hand skill. Individual hand preferences were found, but no significant population asymmetry was observed across the sample. However, the performance data reveal substantial benefits of right-handedness for joystick manipulation, as this group of monkeys mastered the 2 psychomotor tasks significantly faster than did their left-handed counterparts. The data support earlier reports of a right-hand advantage for joystick manipulation and also support the importance of distinguishing between hand preference and manual performance in research on functional asymmetries.
在35只恒河猴（猕猴）操纵操纵杆以响应两项计算机任务时，记录了它们的用手偏好。然后，利用这些偏好，对比了8只左利手和10只右利手猴子在手部技能表现指标上的差异。发现了个体的用手偏好，但在整个样本中未观察到显著的群体不对称性。然而，表现数据显示，右利手在操纵操纵杆方面有显著优势，因为这群猴子掌握这两项心理运动任务的速度明显快于左利手的同类猴子。这些数据支持了早期关于操纵操纵杆时右利手优势的报道，也支持了在功能不对称研究中区分用手偏好和手动表现的重要性。
