Abstract:
:Prior exposure to a stimulus can facilitate the performance to subsequent presentations of that stimulus. ERP studies have shown that this facilitation is associated with the modulation of two components (N400 and P600). Investigation of the time course of both behavioral and ERP repetition effects have led to the assumption that it is subserved by the combination of at least two mechanisms operating at different time-points: a short-delay semantic activation and a long-lasting episodic mechanism. The present experiment recorded intracranial ERPs from various structures during a continuous recognition memory task to investigate the respective contribution of the different brain regions to short- and long-delay ERP repetition effects. The results are in good agreement with both the classical neuropsychological literature and the more recent data obtained with functional imagery techniques. They provide electrophysiological evidence of multiple anatomo-functional memory systems in the human brain: a short-term semantic activation system and a long-term episodic memory system, with interface structures that coordinate the functioning of these two systems.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Guillem F,Rougier A,Claverie Bdoi
10.1162/089892999563526subject
Has Abstractpub_date
1999-07-01 00:00:00pages
437-58issue
4eissn
0898-929Xissn
1530-8898journal_volume
11pub_type
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pub_type: 评论,杂志文章
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pub_type: 临床试验,杂志文章,随机对照试验
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