Vachon François, Tremblay Sébastien, Hughes Robert W, Jones Dylan M
Cardiff University, UK.
Exp Psychol. 2010;57(5):346-53. doi: 10.1027/1618-3169/a000041.
Key to our understanding of the temporal limits of attention as reflected in the attentional blink (AB)--the failure to report the second of two targets (T1 and T2) presented in close succession--is the detrimental impact of posttarget distractors, accounted for typically by the construct of masking. Within the context of the auditory AB, we tested the notion of masking by seeking to perceptually "capture" the T2 + 1 distractor away from the target-containing sequence to examine whether perceptual organizational factors could, instead, explain the action of T2 + 1. Using monaural sequences of tones, the presentation of T2 + 1 contralaterally to the rest of the sounds produced the AB. However, the AB was abolished when that contralateral T2 + 1 was perceptually grouped with an induction sequence of irrelevant tones presented to the contralateral ear. Such findings are consistent with a selection-based approach to the AB that emphasizes failure of inhibition and misselection while suggesting a diminished role for masking.
我们对注意瞬脱（AB）所反映的注意时间限制的理解的关键在于——无法报告紧挨着呈现的两个目标（T1和T2）中的第二个目标——是目标后干扰物的有害影响，通常用掩蔽这一概念来解释。在听觉注意瞬脱的背景下，我们通过试图从包含目标的序列中在感知上“捕获”T2 + 1干扰物来测试掩蔽的概念，以检验感知组织因素是否反而可以解释T2 + 1的作用。使用单耳音调序列，T2 + 1与其他声音对侧呈现会产生注意瞬脱。然而，当对侧的T2 + 1在感知上与呈现给对侧耳朵的无关音调的诱导序列分组时，注意瞬脱就会消失。这些发现与基于选择的注意瞬脱方法一致，该方法强调抑制失败和错误选择，同时表明掩蔽的作用减弱。
