Cormier P, Cameron M K, Cross D
Départment de psychologie, Université de Moncton, Canada.
Psychol Res. 1992;54(2):137-9. doi: 10.1007/BF00937142.
The present set of studies attempted to replicate Gellatly's (1985) findings that were supportive of Evan's (1982) hypothesis that the right hemisphere produces a selective bias towards the incorrect solution of a complex reasoning task. Subjects solved problems of the form "if p then q." In four studies, participants simultaneously performed a bottle--balancing task on each hand to interfere with processing of the reasoning task in the right hemisphere. In the fifth study, the bottle--balancing task was replaced by a finger--sequencing task. The results of the five studies did not show that the interference with right-hemisphere activity resulted in better performance on the conditional-reasoning task. It is concluded that the hypothesis of a right-hemisphere bias in conditional reasoning is still in need of reliable findings.
目前这组研究试图复制盖拉特利（1985年）的研究结果，这些结果支持埃文斯（1982年）的假设，即右半球对复杂推理任务的错误解决方案产生选择性偏向。受试者解决“如果p那么q”形式的问题。在四项研究中，参与者同时用双手执行瓶子平衡任务，以干扰右半球对推理任务的处理。在第五项研究中，瓶子平衡任务被手指排序任务所取代。这五项研究的结果并未表明对右半球活动的干扰会导致在条件推理任务上有更好的表现。得出的结论是，条件推理中右半球偏向的假设仍需要可靠的研究结果。
