Judgments of relative position and distance on representations of spatial relations.
Judgments of relative position and distance on representations of spatial relations.
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相对位置和距离对空间关系表征的判断。
DOI：
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发表时间：
1991
期刊：
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通讯作者：
J. Sergent
中科院分区：
文献类型：
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作者：
J. Sergent
本文考察了科斯林（1987）关于大脑半球处理分类和协调空间关系的能力不平等的假设。实验1包含4个不同的任务，在正常情境下不能支持这一假设。在与Kosslyn的研究相同的刺激模式下，结果不能证实在正常情境（实验2）和共分情境（实验3）中大脑对两种空间关系的不对称性。刺激亮度的降低部分证实了这一假设，因为右半球比左半球更擅长处理坐标表征，而两者在处理范畴空间关系表征方面同样有能力。结果表明，两个脑半球都可以处理两种类型的空间关系，但它们各自的效率取决于要处理的表征的质量。
This article examines Kosslyn's (1987) hypothesis of the unequal capacity of cerebral hemispheres to process categorical and coordinate spatial relations. Experiment 1 comprised 4 different tasks and failed to support this hypothesis in normal Ss. With the same stimulus patterns as in Kosslyn's study, the results failed to confirm cerebral asymmetry for representing the 2 types of spatial relations, in normal (Experiment 2) and commissurotomized (Experiment 3) Ss. In Experiment 4, a reduction in stimulus luminance produced a partial confirmation of the hypothesis as the right hemisphere proved more adept than the left hemisphere at operating on coordinate representations, whereas both were equally competent at processing categorical spatial-relation representations. The results suggest that the 2 hemispheres can operate on both types of spatial relations, but their respective efficiency depends on the quality of the representations to be processed.