Charlton S, Bakan P
Simon Fraser University, Burnaby, British Columbia, Canada.
Int J Neurosci. 1988 Nov;43(1-2):15-9. doi: 10.3109/00207458808985775.
Past research has suggested that torque (the tendency to draw circles in a clockwise direction) may be indicative of less cerebral lateralization. This notion is based on the finding that left-handers demonstrate a greater incidence of torque than right-handers. The present study attempted to investigate this relationship using both conjugate lateral eye movements (CLEM) and handedness as indices of cerebral lateralization. Subjects were 40 male and 40 female right-handed and 16 male and 16 female nonright-handed university students. Consistent with past studies, torque was significantly related to handedness, with nonright-handers demonstrating a greater incidence of torque. However, no relationship between torque and CLEM was found. On the basis of these findings, it is argued that the observed relationship between torque and handedness may be due more to muscle mechanics of the hands rather than any relationship with cerebral lateralization.
过去的研究表明，扭矩（顺时针画圈的倾向）可能表明大脑的偏侧化程度较低。这一观点基于这样一个发现，即左撇子比右撇子表现出更高的扭矩发生率。本研究试图通过使用共轭侧眼运动（CLEM）和利手作为大脑偏侧化指标来探究这种关系。研究对象为40名右利手男性和40名右利手女性以及16名非右利手男性和16名非右利手女性大学生。与过去的研究一致，扭矩与利手显著相关，非右利手表现出更高的扭矩发生率。然而，未发现扭矩与共轭侧眼运动之间存在关系。基于这些发现，有人认为观察到的扭矩与利手之间的关系可能更多地归因于手部的肌肉力学，而非与大脑偏侧化的任何关系。
