Robey Alison, Riggins Tracy
University of Maryland, College Park, MD, 20742.
Dev Psychobiol. 2016 Jul;58(5):556-67. doi: 10.1002/dev.21401. Epub 2016 Mar 10.
The event related potential (ERP) technique is a useful methodology for studying neural changes underlying memory development during childhood. However, systematic comparisons of differences in memory tasks and retrieval demands are lacking. To address this gap, the present study explored the effects of memory task (i.e., item versus source) and retrieval paradigm (i.e., intentional versus incidental) on 4- to 5-year-old children's memory performance and associated electrophysiological responses. Children were familiarized with items in a play-like setting and then asked to retrieve item or source memory details while their brain activity was recorded (intentional retrieval) or while they passively viewed images of the items with no explicit task (incidental retrieval). Memory assessments for the incidental groups followed ERP recording. Analyses of the ERP data suggested that the brain's response during intentional retrieval of source information differed from the other three conditions. These results are discussed within a two-component framework of memory development (e.g., Shing et al., 2010), and implications for future methodological decisions are presented. © 2016 Wiley Periodicals, Inc. Dev Psychobiol 58: 556-567, 2016.
事件相关电位（ERP）技术是研究儿童期记忆发展背后神经变化的一种有用方法。然而，目前缺乏对记忆任务和检索要求差异的系统比较。为了填补这一空白，本研究探讨了记忆任务（即项目记忆与来源记忆）和检索范式（即有意检索与无意检索）对4至5岁儿童记忆表现及相关电生理反应的影响。儿童在类似游戏的情境中熟悉项目，然后在记录其大脑活动时（有意检索）或在无明确任务被动观看项目图像时（无意检索），被要求检索项目或来源记忆细节。无意检索组的记忆评估在ERP记录之后进行。ERP数据分析表明，在有意检索来源信息时大脑的反应与其他三种情况不同。本研究在记忆发展的双成分框架内（如Shing等人，2010）对这些结果进行了讨论，并提出了对未来方法学决策的启示。©2016威利期刊公司。《发展心理生物学》58:556 - 567，2016年。
