期刊
COGNITIVE BRAIN RESEARCH
卷 18, 期 2, 页码 107-120出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cogbrainres.2003.09.006
关键词
event-related potential; ERP; memory; familiarity; recollection; time
资金
- NIMH NIH HHS [R01 MH064812-01, MH64812, R01 MH064812-02] Funding Source: Medline
- NATIONAL INSTITUTE OF MENTAL HEALTH [R01MH064812] Funding Source: NIH RePORTER
Recognition memory studies have suggested that event-related brain potentials (ERPs) may tap into several different memory processes. In particular, two ERP components have been hypothesized as related to familiarity (FN400 old/new effect, 300-500 ms, anterior) and recollection processes (parietal old/new effect, 400-800 ms, posterior). The functional significance of the FN400 old/new effect is uncertain because similar old/new differences have been shown to disappear at moderately long retention intervals. The present study investigated the effects of retention interval (34 min, 39 min, or 1 day) on the FN400 and parietal old/new effects in two different recency discrimination tasks. The results suggest that the FN400 old/new effect can be maintained across 1-day retention intervals, so it may index brain processes capable of contributing to long-term memory. (C) 2003 Elsevier B.V. All rights reserved.
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