Fischer S C, Pellegrino J W
Department of Psychology, University of California, Santa Barbara 93106.
Brain Cogn. 1988 Feb;7(1):1-15. doi: 10.1016/0278-2626(88)90017-6.
The hemispheric functional lateralization of components of mental rotation performance was investigated. Twenty right-handed males were presented with rotated alphanumerics and unfamiliar characters in the left or right visual field. Subjects decided if the laterally presented stimulus was identical to or a mirror image of a center standard stimulus. Reaction time and errors were measured. Previous mental rotation findings were replicated and the visual field variable produced significant effects for both dependent measures. An overall right visual field advantage was observed in the latency data, suggesting a left hemisphere superiority for at least one component process of the task. A significant interaction in the error data showed that alphanumerics produced less errors in the right visual field than in the left visual field, consistent with a left hemisphere superiority for processing verbal symbolic material. No such hemispheric difference in accuracy was found for unfamiliar characters.
研究了心理旋转表现各成分的半球功能侧化。向20名右利手男性在左或右视野呈现旋转的字母数字和不熟悉的字符。受试者判断侧向呈现的刺激与中央标准刺激是相同还是镜像。测量反应时间和错误率。重复了先前关于心理旋转的研究结果，视野变量对两个因变量都产生了显著影响。在潜伏期数据中观察到总体右视野优势，表明在该任务的至少一个成分过程中左半球具有优势。错误数据中的显著交互作用表明，字母数字在右视野产生的错误比左视野少，这与左半球在处理言语符号材料方面的优势一致。对于不熟悉的字符，未发现这种半球准确性差异。
