Vachon François, Tremblay Sébastien
Ecole de Psychologie, Université Laval, Québec, Canada.
Can J Exp Psychol. 2005 Dec;59(4):279-86. doi: 10.1037/h0087480.
When two target items (T1 and T2) are presented in rapid succession among fillers, processing T2 is often impaired. This phenomenon is known as the attentional blink (AB). Within the visual modality, this second-target deficit generally occurs only if T2 is masked by a trailing item. The current study was designed to examine whether masking of T2 also plays a critical role in the auditory AB. Results showed a reliable AB effect even when the item following T2 was replaced by silence. However, the AB deficit was abolished when T2 was the last presented stimulus. Our results suggest that, as in vision, T2 masking is necessary for the AB to take place in audition, but that masking is effective even when delayed, providing evidence that the phenomenon shares some functional mechanisms across sensory modalities.
当两个目标项目（T1和T2）在填充项目中快速连续呈现时，对T2的加工往往会受到损害。这种现象被称为注意瞬脱（AB）。在视觉通道中，只有当T2被一个尾随项目掩蔽时，这种第二目标缺陷才通常会出现。当前的研究旨在检验T2的掩蔽在听觉注意瞬脱中是否也起着关键作用。结果显示，即使T2之后的项目被静音取代，也会出现可靠的注意瞬脱效应。然而，当T2是最后呈现的刺激时，注意瞬脱缺陷就会消失。我们的结果表明，与视觉一样，T2掩蔽对于听觉注意瞬脱的发生是必要的，但即使掩蔽延迟，它也是有效的，这为该现象在不同感觉通道中共享一些功能机制提供了证据。
