Shifting visual attention and selecting motor responses: distinct attentional mechanisms.
Shifting visual attention and selecting motor responses: distinct attentional mechanisms.
复制标题
转移视觉注意力和选择运动反应：不同的注意力机制。
DOI：
10.1037//0096-1523.17.4.1023
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Pashler,H
中科院分区：
文献类型：
--
作者：
Pashler,H
转移视觉注意力是否需要与选择外显运动反应相同的中枢机制？在实验一中，被试完成了两个任务：一个是对一个音调的快速手动反应，另一个是对一个简短的掩蔽阵列中的一个目标字母的非快速报告。刺激起始时间（SOA）之间的音调和数组是不同的。如果注意力转移到目标被延迟的第一个任务，那么应该有更多的第二个任务的错误，在短的SOA和试验与缓慢的第一个任务的反应。事实上，SOA的影响和依赖性是最小的。在进一步的实验中，线索和目标之间的关系是象征性的，空间上的“不自然”，或基于目标的颜色，结果是不变的。另外两个实验验证了该方法的关键假设。结果证实，虽然运动反应的选择构成了一个加工瓶颈，视觉注意的控制独立于这个瓶颈。
Does shifting visual attention require the same central mechanism as that required for selecting overt motor responses? In Experiment 1, Ss performed 2 tasks: a speeded manual response to a tone and an unspeeded report of a cued target letter in a brief masked array. Stimulus onset asynchrony (SOA) between tone and array was varied. If the attention shift to the target was delayed by the first task, then there should be more second-task errors at short SOAs and on trials with slow first-task responses. In fact, SOA effects and dependencies were minimal. Results were unchanged in further experiments in which the relation between cue and target was symbolic, spatially “unnatural,” or based on the color of the target. Two additional experiments validated key assumptions of the method. The results confirm that although selection of motor responses constitutes a processing bottleneck, the control of visual attention operates independently of this bottleneck.