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@ARTICLE{Hoffstaedter:150580,
author = {Hoffstaedter, F. and Grefkes, Christian and Roski,
Christian and Caspers, Svenja and Zilles, Karl and Eickhoff,
Simon},
title = {{A}ge-related decrease of functional connectivity
additional to gray matter atrophy in a network for movement
initiation.},
journal = {Brain structure $\&$ function},
volume = {220},
number = {2},
issn = {1863-2661},
address = {Berlin},
publisher = {Springer},
reportid = {FZJ-2014-00629},
pages = {999–1012},
year = {2015},
abstract = {Healthy aging is accompanied by a decrease in cognitive and
motor capacities. In a network associated with movement
initiation, we investigated age-related changes of
functional connectivity (FC) as well as regional atrophy in
a sample of 232 healthy subjects (age range 18-85 years).
To this end, voxel-based morphometry and whole-brain
resting-state FC were analyzed for the supplementary motor
area (SMA), anterior midcingulate cortex (aMCC) and
bilateral striatum (Str). To assess the specificity of
age-related effects, bilateral primary sensorimotor cortex
(S1/M1) closely associated with motor execution was used as
control seeds. All regions showed strong reduction of gray
matter volume with age. Corrected for this regional atrophy,
the FC analysis revealed an age × seed interaction for
each of the bilateral Str nodes against S1/M1 with
consistent age-related decrease in FC with bilateral caudate
nucleus and anterior putamen. Specific age-dependent FC
decline of SMA was found in bilateral central insula and the
adjacent frontal operculum. aMCC showed exclusive
age-related decoupling from the anterior cingulate motor
area. The present study demonstrates network as well as
node-specific age-dependent FC decline of the SMA and aMCC
to highly integrative cortical areas involved in cognitive
motor control. FC decrease in addition to gray matter
atrophy within the Str may provide a substrate for the
declining motor control in elderly. Finally, age-related FC
changes in both the network for movement initiation as well
as the network for motor execution are not explained by
regional atrophy in the healthy aging brain.},
cin = {INM-1 / INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)INM-3-20090406},
pnm = {571 - Connectivity and Activity (POF3-571) / 572 -
(Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-571 / G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:24399178},
UT = {WOS:000350350300024},
doi = {10.1007/s00429-013-0696-2},
url = {https://juser.fz-juelich.de/record/150580},
}