LAENG B, PETERS M
Department of Psychology, University of Guelph, Ontario, Canada.
Neuropsychologia. 1995 Apr;33(4):421-39. doi: 10.1016/0028-3932(94)00126-a.
Subjects judged whether a tachistoscopially lateralized drawing was identical or different to a drawing seen immediately before in free vision. The drawings depicted natural objects (e.g. animals). On half of the trials the tachistoscopic drawing presented the same objects but either the categorical or the coordinate spatial relations (according to Kosslyn's definitions [23]) between the objects were transformed. In the first experiment 38 right-handed subjects (half males and half females) were tested. Categorical judgements were faster when the match drawing appeared in the right visual field, whereas coordinate judgements were faster when the match drawing appeared in the left visual field. In the second experiment 26 right-handed and 40 left-handed subjects participated. Almost all the subjects were female. Right-handed subjects replicated the findings of the subjects in the first experiment. However, the LHs did not show any difference in response times between spatial conditions and visual fields. These findings support Kosslyn's hypothesis that the left and right hemispheres are specialized respectively for processing categorical and coordinate spatial relations. Moreover, they also suggest that this lateralization pattern is not typical of left-handers.
受试者判断一张通过速示器呈现的偏向一侧的图画与之前在自由视觉中立即看到的一张图画是相同还是不同。这些图画描绘的是自然物体（如动物）。在一半的试验中，速示图画呈现相同的物体，但物体之间的分类或坐标空间关系（根据科斯林的定义[23]）被改变了。在第一个实验中，对38名右利手受试者（男女各半）进行了测试。当匹配图画出现在右视野时，分类判断更快，而当匹配图画出现在左视野时，坐标判断更快。在第二个实验中，有26名右利手受试者和40名左利手受试者参与。几乎所有受试者都是女性。右利手受试者重复了第一个实验中受试者的发现。然而，左利手受试者在空间条件和视野之间的反应时间上没有表现出任何差异。这些发现支持了科斯林的假设，即左半球和右半球分别专门用于处理分类和坐标空间关系。此外，它们还表明这种偏侧化模式并非左利手者所特有。
