Restricted attentional capacity within but not between sensory modalities
Restricted attentional capacity within but not between sensory modalities
复制标题
作者：
Duncan, J;Martens, S;Ward, R
注意力能力的局限性表现在两种感觉输入必须同时被识别时，通常会产生干扰（1）。为了研究这种现象内部和之间的方式，我们提出了流的视觉和/或听觉输入，偶尔目标识别和召回。对于两个视觉流或两个听觉流，识别一个目标的能力会持续降低识别第二个目标的能力，干扰持续数百毫秒。主观上，当注意力被分配给一个目标时，它暂时无法用于另一个目标。相反，在不同的模态中，目标之间没有这种时间锁定的干扰。结果表明，特定的模态限制并发注意和意识，视觉注意一个简单的目标并不限制并发听觉注意到另一个。
Restrictions to attentional capacity are revealed by the interference that commonly results when two sensory inputs must be identified at the same time(1). To investigate this phenomenon within and between modalities, we presented streams of visual and/or auditory inputs, containing occasional targets to be identified and recalled. For two visual or two auditory streams, identification of one target produced a sustained reduction in the ability to identify a second, the period of interference lasting for several hundred milliseconds. Subjectively, when attention was assigned to one target it was temporarily unavailable for another. In contrast, there was no such time-locked interference between targets in different modalities, The results suggest a modality-specific restriction to concurrent attention and awareness; visual attention io one simple target does not restrict concurrent auditory attention to another.