Neural basis for successful encoding and retrieval of prospective memory
Neural basis for successful encoding and retrieval of prospective memory
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成功编码和检索前瞻记忆的神经基础
DOI：
10.1007/s11427-011-4176-8
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发表时间：
2011-06
期刊：
影响因子：
--
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中科院分区：
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前瞻记忆（Prospective Memory，PM）是指对未来意图的记忆。记忆差异（Dm效应）是与随后记住或忘记的刺激相关的神经活动的差异。本研究采用事件相关电位（ERPs）技术，采用后续任务转换范式考察了PM的Dm效应。结果表明，在100-200 ms的时间段内，事件相关电位P150的Dm效应对后PM命中试验的正向影响大于后PM遗忘试验的正向影响，这种Dm效应可能反映了未来意图的产生过程或注意过程。与先前报道的其他类型记忆的Dm效应一致，我们发现，在后来的PM命中试验中，fbN 2（250-280 ms）和晚期积极成分（400-700 ms）比在遗忘试验中更强。fbN 2由汉字诱发。晚期积极成分与精确编码过程有关。总之，由于早期的P150，PM编码似乎有点不同于以前确定的Dm效应。然而，还需要进一步的研究。我们的研究结果表明，PM的Dm效应与其他类型的情景记忆的Dm效应在神经加工的非常早期阶段后具有相似的特征。
Prospective memory (PM) refers to memory for future intentions. Difference due to memory (Dm effect) is the difference in neural activity related to stimuli that were subsequently remembered or forgotten. Using event-related potentials (ERPs), the present study investigated the Dm effect for PM using a subsequent task-switching paradigm. The results showed that a Dm effect of ERP P150 was more positive-going for later PM hit trials than for later PM forgotten trials during 100–200 ms. This Dm effect may reflect the process for the production of future intention or the process for attention. Consistent with previously reported Dm effects of other types of memory, we found that the fbN2 (250–280 ms) and late positivity component (400–700 ms) were stronger in later PM hit trials than in forgotten trials. The fbN2 was evoked by Chinese characters. The late positivity component was related to the precise encoding process. In conclusion, because of the early P150, PM encoding appears to be somewhat different from previously identified Dm effects. However, further research is needed. Our findings reveal that Dm effects of PM share similar characteristics with known Dm effects of other types of episodic memory after the very early stage of neural processing.
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影响因子：
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DOI：
10.1016/j.ijpsycho.2006.09.004
发表时间：
2007-06
期刊：
International journal of psychophysiology : official journal of the International Organization of Psychophysiology
影响因子：
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作者：
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DOI：
10.3758/cabn.2.2.162
发表时间：
2002-06
期刊：
Cognitive, Affective, & Behavioral Neuroscience
影响因子：
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作者：
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R. West;Keisha Ross-Munroe
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Okuda, J;Fujii, T;Fukuda, H
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