Division for Clinical and Cognitive Neurosciences, Department of Neurology Medical Faculty, RWTH Aachen University Aachen, Germany.
Front Psychol. 2013 Jun 19;4:362. doi: 10.3389/fpsyg.2013.00362. eCollection 2013.
In the present study, we tested right- and left-handed participants in a Poffenberger paradigm with bimanual responses and hands either in an anatomical or in a left-right inverted posture. We observed a significant positive crossed-uncrossed difference (CUD) in RTs for both manual dominance groups and both response postures. These results rule out an explanation of the CUD in terms of stimulus-response spatial compatibility (SRSC) and provide convincing evidence on the important role of interhemispheric callosal transfer in bimanual responding in right- as well as left-handed individuals.
在本研究中，我们在 Poffenberger 范式中测试了右利手和左利手参与者，他们使用双手进行反应，手的位置为解剖位或左右反转位。我们观察到两种手动优势组和两种反应姿势的 RTs 中均存在显著的正交叉未交叉差异（CUD）。这些结果排除了 CUD 可以用刺激-反应空间兼容性（SRSC）来解释的可能性，并为大脑两半球间胼胝体传递在右利手和左利手个体的双手反应中具有重要作用提供了令人信服的证据。
