The cerebral hemispheres cooperate to perform complex but not simple tasks.
The cerebral hemispheres cooperate to perform complex but not simple tasks.
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DOI：
10.1037//0894-4105.14.1.41
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发表时间：
2000
期刊：
影响因子：
2.4
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
设计了三个实验来检验任务的复杂性是否决定了当半球内加工和跨半球加工同样可能的情况下，跨半球的加工分工(即跨半球加工)对绩效的影响程度。当任务复杂性相对较低时，在允许半球内或跨半球加工的中线条件下的表现类似于半球内的表现(实验1和实验2)。然而，当任务复杂性较高时，在中线条件(实验1和实验2)和偏侧条件(也允许在大脑半球内或跨半球加工(实验3))下的表现与跨半球表现相似。结果补充和扩展了先前的工作(例如M.T.Banich和A.Belger，1990)，指出大脑半球间合作对绩效的影响程度随着所执行任务的复杂程度而变化。这一发现表明，作为任务复杂性的函数，大脑半球动态地耦合或分离它们的处理过程。
Three experiments were designed to examine whether task complexity determines the degree to which a division of processing across the hemispheres (i.e., across-hemisphere processing) underlies performance when within- and across-hemisphere processing are equally possible. When task complexity was relatively low, performance in a midline condition that allowed for either within- or across-hemispheric processing resembled within-hemisphere performance (Experiments 1 and 2). However, when task complexity was high, performance in a midline condition (Experiments 1 and 2) and a lateralized condition, which also allowed for either within- or across-hemisphere processing (Experiment 3), resembled across-hemisphere performance. Results complement and extend prior work (e.g., M. T. Banich & A. Belger, 1990) by indicating that the degree to which interhemispheric cooperation underlies performance changes with the complexity of the task being performed. This finding suggests that the hemispheres dynamically couple or uncouple their processing as a function of task complexity.