Global-local interference modulated by communication between the hemispheres.
Global-local interference modulated by communication between the hemispheres.
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DOI：
10.1037//0096-3445.128.3.283
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发表时间：
1999-09
期刊：
影响因子：
--
通讯作者：
D. Weissman;M. Banich
中科院分区：
文献类型：
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作者：
D. Weissman;M. Banich
三个实验检验了大脑半球间的相互作用是否以d.n avon（1977）的全局-局部范式的相同-不同版本调节选择性注意。在实验1和2中，当两个刺激在预先设定的水平（如局部）上匹配而在不相关的水平（如全局）上不同时，半球间相互作用减少了刺激间干扰。由几个大元素组成的刺激比由许多小元素组成的刺激效果更大。实验3表明：(a)半球间相互作用减少刺激间干扰的能力不受整体和局部处理的半球差异的限制；(b)当个体刺激中预设（如局部）和不相关（如整体）水平的形式不同时，半球间相互作用不会强烈调节刺激内干扰。这些发现表明，大脑半球之间的相互作用是一种可能有助于选择性注意的神经机制。
Three experiments examined whether interhemispheric interaction modulates selective attention in a same-different version of D. Navon's (1977) global-local paradigm. In Experiments 1 and 2, interhemispheric interaction reduced interstimulus interference produced when two stimuli matched at a preassigned level (e.g., local) but differed at the irrelevant level (e.g., global). This effect was greater for stimuli made of a few large elements than for those made of many small elements. Experiment 3 demonstrated that (a) the ability of interhemispheric interaction to reduce interstimulus interference is not constrained by hemispheric differences for global and local processing and (b) interhemispheric interaction does not strongly modulate intrastimulus interference produced when the forms at the preassigned (e.g., local) and irrelevant (e.g., global) levels differ within an individual stimulus. These findings indicate that interaction between the hemispheres is a neural mechanism that may aid selective attention.