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Isolating the retrieval of imagined pictures during episodic memory: activation of the left precuneus and left prefrontal cortex

Författare:
Publiceringsår: 2003
Språk: Engelska
Sidor: 1934-1943
Publikation/Tidskrift/Serie: Neuroimage
Volym: 20
Nummer: 4
Dokumenttyp: Artikel
Förlag: Elsevier Inc.

Sammanfattning

The posterior medial parietal cortex and the left prefrontal cortex have both been implicated in the recollection of past episodes. In order to clarify their functional significance, we performed this functional magnetic resonance imaging study, which employed event-related source memory and item recognition retrieval of words paired with corresponding imagined or viewed pictures. Our results suggest that episodic source memory is related to a functional network including the posterior precuneus and the left lateral prefrontal cortex. This network is activated during explicit retrieval of imagined pictures and results from the retrieval of item-context associations. This suggests that previously imagined pictures provide a context with which encoded words can be more strongly associated. (C) 2003 Elsevier Inc. All rights reserved.

Disputation

Nyckelord

  • Medicine and Health Sciences
  • Social Sciences

Övriga

Published
Yes
  • ISSN: 1053-8119

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