Brain potentials and repetition effects during encoding and retrieval of words.
Brain potentials and repetition effects during encoding and retrieval of words.
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单词编码和检索过程中的大脑电位和重复效应。
DOI：
10.1097/wnr.0b013e32830c8dda
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发表时间：
2008-09-17
期刊：
影响因子：
1.7
通讯作者：
Jiang Y
中科院分区：
文献类型：
--
作者：
Li Q;Guo C;Jiang Y
本研究采用事件相关电位（ERPs）研究范式，探讨编码和提取过程中重复学习效应的共同机制。结果表明，重复学习效应在编码和提取过程中都存在。然而，编码效应比提取效应出现得更早，持续时间更长。而且，内隐提取的效果比外显提取的效果更早出现。与编码和提取有关的重复效应主要分布在顶叶和中央部位。两种ERP重复效应均表现为重复词的ERP反应显著大于首次出现的ERP反应。ERP的重复效应支持了编码和提取过程中存在共同的学习相关自动加工的假设。
Using Event-Related Potentials (ERPs), the present study utilized a study-test paradigm to investigate the existence of a common mechanism underlying repeated learning effects during encoding and retrieval. Results showed repeated learning effects occurred in both encoding and retrieval. However, the effect of encoding appeared earlier and lasted longer than that of retrieval. Furthermore, the effect of implicit retrieval appeared earlier than that of explicit retrieval. The main scalp distributions of the repetition effects related to both encoding and retrieval occurred at parietal and central sites. Both ERP repetition effects manifested significantly larger and positive-going ERP response of repeated words compared to the words’ first appearance. The ERP repetition effects support the hypothesis that there is common learning-related automatic processing during encoding and retrieval.