Day L B, MacNeilage P F
Department of Psychology, University of Texas, Austin 78712, USA.
J Comp Psychol. 1996 Mar;110(1):88-96. doi: 10.1037/0735-7036.110.1.88.
Is hemispheric specialization for speech more closely related to left hemisphere specialization for manual skill and sequencing, as is usually supposed, or to control of asymmetries in whole body posture, as recent findings of right-handedness in nonhuman primates suggest? This question can be evaluated in the 10% of humans who have mixed handedness and footedness. Footedness entails postural asymmetry, and persons with mixed limb preferences often prefer the hand ipsilateral to the preferred foot in asymmetrical actions for which whole body postural adjustments are obligatory (e.g., throwing). The dichotic listening test , and indicator of language laterality, was administered to 4 groups of 48 persons with the 4 possible combinations of hand and foot preference. As in 2 past studies, language lateralization was somewhat more strongly related to postural asymmetries than to asymmetries in manual skill and sequencing.
言语的半球特化与左半球对手部技能和序列的特化（正如通常所认为的那样）更为密切相关，还是与对全身姿势不对称性的控制更为密切相关（正如最近在非人类灵长类动物中关于右利手的研究结果所表明的那样）？这个问题可以在10%的混合用手和用脚习惯的人群中进行评估。用脚习惯涉及姿势不对称，并且在必须进行全身姿势调整的不对称动作（例如投掷）中，有混合肢体偏好的人通常更喜欢与优势脚同侧的手。对4组每组48名具有4种可能的手和脚偏好组合的人进行了作为语言侧化指标的双耳分听测试。与过去的两项研究一样，语言侧化与姿势不对称的相关性略强于与手部技能和序列不对称的相关性。
