Verfaellie M, Bowers D, Heilman K M
Veterans Administration Medical Center, Gainesville, Florida.
Neuropsychologia. 1988;26(4):521-31. doi: 10.1016/0028-3932(88)90109-1.
Heilman and Van Den Abell [Neuropsychologia 17, 315-321, 1979] reported a right hemisphere dominance for cerebral activation. In the present study, we further examined the nature of this finding in an experimental paradigm in which selective attention and intention (response readiness) were manipulated independently. Normal subjects were tested on a choice reaction time task in which they were given preliminary information about where a target stimulus would occur (selective attention) and which hand to use for responding (intention). Our findings indicate that at short foreperiod durations, the right hemisphere is superior for mediating intention. There was no evidence for a right hemisphere superiority for selective attention.
海尔曼和范登阿贝尔[《神经心理学》17卷，315 - 321页，1979年]报告了大脑激活存在右半球优势。在本研究中，我们在一个实验范式中进一步检验了这一发现的本质，在该范式中，选择性注意和意图（反应准备）被独立操纵。正常受试者在一个选择反应时任务中接受测试，在该任务中，他们会得到关于目标刺激将出现在何处（选择性注意）以及用哪只手进行反应（意图）的初步信息。我们的研究结果表明，在前瞻期持续时间较短时，右半球在介导意图方面更具优势。没有证据表明右半球在选择性注意方面具有优势。
