TY - JOUR
T1 - Isolating the retrieval of imagined pictures during episodic memory
T2 - Activation of the left precuneus and left prefrontal cortex
AU - Lundstrom, Brian Nils
AU - Petersson, Karl Magnus
AU - Andersson, Jesper
AU - Johansson, Mikael
AU - Fransson, Peter
AU - Ingvar, Martin
N1 - Funding Information:
Grants from the Swedish Medical Research Council (8276), the Karolinska Institutet, the Swedish Medical Association, the Knut and Alice Wallenberg Foundation, and the Family Hedlund Foundation supported this work. B.N.L. was supported by a fellowship from the Fulbright Commission in Sweden. We thank Guillen Fernandez, Rik Henson, Lars Nyberg, and Ivan Toni for comments on early versions of the manuscript as well as Alex Huk and Michael Shadlen for conversation and support.
PY - 2003/12
Y1 - 2003/12
N2 - 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.
AB - 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.
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U2 - 10.1016/j.neuroimage.2003.07.017
DO - 10.1016/j.neuroimage.2003.07.017
M3 - Article
C2 - 14683699
AN - SCOPUS:0345734450
SN - 1053-8119
VL - 20
SP - 1934
EP - 1943
JO - NeuroImage
JF - NeuroImage
IS - 4
ER -