Zuidhoek Sander, Kappers Astrid M L, Postma Albert
Helmholtz Institute, Psychological Laboratory, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht, The Netherlands.
Neuropsychologia. 2007 Jan 28;45(2):332-41. doi: 10.1016/j.neuropsychologia.2006.05.032. Epub 2006 Aug 9.
The present study examined sex differences in haptic orientation representation using three tasks: a bimanual parallel-setting task comprising haptic orientation perception and motor matching action, and two unimanual tasks focusing on the perception and action elements separately. A verbal judgment task focused on haptic orientation perception: participants were to assign a number of minutes to a felt orientation. An orientation production task required the rotation of a bar to match a verbally presented number of minutes. Although both male and female performance was systematically biased we found that males are more accurate in parallel-setting and verbal judgment of orientation, suggesting differences in haptic orientation perception, in particular. Increasing allocentric reference frame involvement by delaying the action in the parallel-setting task did not affect the sex difference found. In addition to a male advantage over tasks, performance on both unimanual tasks suggests sex differences in lateralization of haptic orientation processing; a dependence on hand orientation was found only for right hand performance in males.
一项双手平行设置任务，包括触觉方向感知和运动匹配动作，以及两项单手任务，分别侧重于感知和动作元素。一项言语判断任务侧重于触觉方向感知：参与者要为感觉到的方向分配分钟数。一项方向生成任务要求旋转一根杆以匹配言语呈现的分钟数。尽管男性和女性的表现都存在系统性偏差，但我们发现男性在方向的平行设置和言语判断方面更准确，这尤其表明在触觉方向感知上存在差异。通过在平行设置任务中延迟动作来增加以异心参照系为基础的参与度，并未影响所发现的性别差异。除了男性在任务上具有优势外，两项单手任务的表现还表明在触觉方向处理的偏侧化方面存在性别差异；仅在男性的右手表现中发现了对手方向的依赖。
