Interhemispheric relations in hierarchical perception: A second look
Interhemispheric relations in hierarchical perception: A second look
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DOI：
10.1016/s0028-3932(96)00042-5
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发表时间：
1997-01-01
期刊：
影响因子：
2.6
通讯作者：
Zaidel, E
中科院分区：
文献类型：
--
作者：
Weekes, NY;Carusi, D;Zaidel, E
本研究重新评估了分层感知中半球间相互作用在一致性效应（全局干扰局部决策）中的作用。在早期的研究中，罗伯逊等人。 [22]（Nenropsychology；第 7 卷，第 325-342 页，1993）在分层感知任务中测试了三名裂脑患者，其中刺激由由较小（局部）字母组成的大（全局）字母组成；被单边或双边提交以供识别。他们发现，一般来说，裂脑患者不会出现一致性效应，并认为这种效应是半球间的，通常由胼胝体介导。我们用新的刺激在两名相同的裂脑患者身上重复了这个实验。我们发现，两名患者都表现出全局干扰的证据，这意味着新皮质连合对于引发层次感知的一致性效应不是必需的。版权所有 (C) 1996 爱思唯尔科学有限公司
This study reevaluates the role of interhemispheric interactions in the consistency effect (global interference with local decisions) in hierarchical perception. In an earlier study, Robertson et al. [22] (Nenropsychology; Vol. 7, pp. 325-342, 1993) tested three split-brain patients on a hierarchical perception task in which stimuli, consisting of large (global) letters made up of smaller (local) letters; were unilaterally or bilaterally presented for identification. They found that, in general, the consistency effect did not occur in split-brain patients and argued that the effect is interhemispheric and normally mediated by the corpus callosum. We repeated the experiment with new stimuli in two of the same split-brain patients. We found that both patients demonstrated evidence for global interference, implying that the neocortical commissures are not necessary for eliciting the consistency effect in hierarchical perception. Copyright (C) 1996 Elsevier Science Ltd.