The attentional blink and P300
The attentional blink and P300
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DOI：
10.1097/00001756-199911260-00042
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发表时间：
1999-11-26
期刊：
影响因子：
1.7
通讯作者：
Michie, P
中科院分区：
文献类型：
--
作者：
McArthur, G;Budd, T;Michie, P
注意瞬脱(AB)是一种短暂的视觉加工障碍，发生在快速视觉刺激流中目标之后200-500ms。这里争论的是AB和P300 ERP成分之间的关系，因为两者在大约300ms时都是最大的，并且都被假设为反映了抑制过程。两个实验表明，AB和P300在个体和群体水平上遵循相似的时间进程，降低任务难度在群体水平上对AB和P300大小有相似的影响，但在观察者内部AB大小和P300大小之间没有关系。这些发现表明，这两种现象之间存在适度的关联，这可能反映了皮层网络的短暂抑制，以促进靶事件的处理。(C)1999年，Lippincott Williams&Wilkins。
THE attentional blink (AB) is a brief impairment of visual processing occurring 200-500 ms after a target in a rapid stream of visual stimuli. At issue here is the relationship between AB and the P300 ERP component, as both are maximal at about 300 ms and have been hypothesised to reflect inhibitory processes. Two experiments revealed that AB and P300 follow a similar time course at the individual and group level, that reducing task difficulty has similar effects on AB and P300 magnitude at the group level, but that there is no relationship between the magnitude of AB and P300 within observers. These findings suggest a moderate association between the two phenomena, which may mirror transient inhibition of cortical networks to Facilitate processing of target events. (C) 1999 Lippincott Williams & Wilkins.