An event-related potential study of selective auditory attention in children and adults
An event-related potential study of selective auditory attention in children and adults
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DOI：
10.1162/0898929053467631
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发表时间：
2005-04-01
影响因子：
3.2
通讯作者：
Neville, HJ
中科院分区：
文献类型：
--
作者：
Coch, D;Sanders, LD;Neville, HJ
在两耳分听实验范式中，被试分别在被试注意和无人注意的情况下，记录了语言和非语言探测刺激的事件相关电位（ERP）。在成年人中，典型的N1注意力效应，观察到这两种类型的探针：探头叠加在出席叙事引起了增强的消极性相比，相同的探头时无人看管。总的来说，这种持续的注意力效应是更大的内侧和左侧网站，但更多的后方分布和更长的持续时间的语言相比，非语言探针。与此相反，在6- 8岁的儿童的ERPs的形态不一样，在成人和儿童显示出更大的积极性，这两种类型的探测刺激时，嵌入在关注相比，无人值守的叙事。虽然成人和儿童都表现出注意力的影响开始在约100毫秒，只有成人显示左侧的注意力效应和一个独特的，后分布的语言探针。这些结果表明，由这项任务索引的注意网络继续发展超过8岁。
In a dichotic listening paradigm, event-related potentials (ERPs) were recorded to linguistic and nonlinguistic probe stimuli embedded in 2 different narrative contexts as they were either attended or unattended. In adults, the typical N1 attention effect was observed for both types of probes: Probes Superimposed on the attended narrative elicited an enhanced negativity compared to the same probes when unattended. Overall, this sustained attention effect was greater over medial and left lateral sites, but was more posteriorly distributed and of longer duration for linguistic as compared to nonlinguistic probes. in contrast, in 6- to 8-year-old children the ERPs were morphologically dissimilar to those elicited in adults and children displayed a greater positivity to both types of probe stimuli when embedded in the attended as compared to the unattended narrative. Although both adults and children showed attention effects beginning at about 100 msec, only adults displayed left-lateralized attention effects and a distinct, posterior distribution for linguistic probes. These results suggest that the attentional networks indexed by this task continue to develop beyond the age of 8 years.