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@ARTICLE{Kukolja:811806,
author = {Kukolja, Juraj and Göreci, D. Yasemin and Onur, Özgür A.
and Riedl, Valentin and Fink, Gereon R.},
title = {{R}esting-state f{MRI} evidence for early episodic memory
consolidation: effects of age},
journal = {Neurobiology of aging},
volume = {45},
issn = {0197-4580},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2016-04157},
pages = {197 - 211},
year = {2016},
abstract = {Aging-related episodic memory decline is often attributed
to insufficient encoding of new information, although the
underlying neural processes remain elusive. We here tested
the hypothesis that impaired memory consolidation
contributes to aging-related memory decline. To this end, we
used resting state functional magnetic resonance imaging in
healthy young and older adults and investigated neural
network connectivity underlying episodic memory
consolidation and the effects of aging thereon. During
postencoding rest, connectivity increased in subregions of
temporobasal and temporo-occipital networks but decreased in
a precuneal network. These connectivity changes predicted
subsequent memory performance thereby constituting
functional correlates of early memory consolidation.
Furthermore, these consolidation-related regional
connectivity changes partially overlapped with
encoding-related neural activity changes, suggesting a close
relationship between encoding- and consolidation-related
activity. Older when compared to young participants failed
to increase connectivity in the right lingual gyrus as part
of an extended default mode network during consolidation,
thereby providing a functional correlate for spatial
contextual memory deficits. In conclusion, results are
consistent with previous reports of persistent activity in
regions mediating memory encoding as a core mechanism
underlying episodic memory consolidation. Our data extend
previous findings suggesting that aging-related memory
decline results from a reduction of consolidation
processes.},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000381092900021},
pubmed = {pmid:27459940},
doi = {10.1016/j.neurobiolaging.2016.06.004},
url = {https://juser.fz-juelich.de/record/811806},
}