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成功的前瞻记忆编码与提取的神经机制研究 被引量:2

Neural basis for successful encoding and retrieval of prospective memory
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摘要 前瞻记忆是指对将来行为和事件的记忆,而相继记忆效应(Dm效应)是指根据记忆提取阶段的成绩,分析与之对应的编码阶段的项目和忘的项目之间的神经活动的差异.本研究采用任务转化范式,借助ERP仪器,使用汉字材料,探讨了前瞻记忆的Dm效应.研究发现,100~200ms(P150),250~280ms(fbN2),400~700ms(LPC)随后前瞻记忆击中的ERPs比随后前瞻记忆忘的ERPs更正.其中,早期的相继记忆效应(P150更正)可能反映了前瞻记忆将来意向的加工或者准备意的加工;而后两个时段与以往的研究结果一致,fbN2可能与汉语材料的加工有关,LPC则反映了记忆的精确编码.总之,本研究从ERP的角度提供了前瞻记忆编码与以往情景记忆编码有相同之处(LPC更正),又存在一些差异(P150更正)的证据,但这种差异需要进一步的研究来论证.
出处 《中国科学:生命科学》 CSCD 北大核心 2011年第4期332-339,共8页 Scientia Sinica(Vitae)
基金 国家自然科学基金(批准号:30870760) 北京市教委重点基金(批准号:KZ201010028029) 高等学校博士学科点专项基金(批准号:20101108110004)资助项目
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共引文献22

同被引文献25

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