文章基本信息

标题：Development of the time course for processing conflict: an event-related potentials study with 4 year olds and adults
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作者：M Rosario Rueda ; Michael I Posner ; Mary K Rothbart 等
期刊名称：BMC Neuroscience
印刷版ISSN：1471-2202
电子版ISSN：1471-2202
出版年度：2004
卷号：5
期号：1
页码：1
DOI：10.1186/1471-2202-5-39
语种：English
出版社：BioMed Central
摘要：Background Tasks involving conflict are widely used to study executive attention. In the flanker task, a target stimulus is surrounded by distracting information that can be congruent or incongruent with the correct response. Developmental differences in the time course of brain activations involved in conflict processing were examined for 22 four year old children and 18 adults. Subjects performed a child-friendly flanker task while their brain activity was registered using a high-density electroencephalography system. Results General differences were found in the amplitude and time course of event-related potentials (ERPs) between children and adults that are consistent with their differences in reaction time. In addition, the congruency of flankers affected both the amplitude and latency of some of the ERP components. These effects were delayed and sustained for longer periods of time in the children compared to the adults. Conclusions These differences constitute neural correlates of children's greater difficulty in monitoring and resolving conflict in this and similar tasks.