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@ARTICLE{Tscherpel:865951,
author = {Tscherpel, Caroline and Hensel, Lukas and Lemberg,
Katharina and Freytag, Jana and Michely, Jochen and Volz,
Lukas J. and Fink, Gereon R. and Grefkes, Christian},
title = {{A}ge affects the contribution of ipsilateral brain regions
to movement kinematics},
journal = {Human brain mapping},
volume = {41},
number = {3},
issn = {1097-0193},
address = {New York, NY},
publisher = {Wiley-Liss},
reportid = {FZJ-2019-05217},
pages = {640-655},
year = {2020},
abstract = {Healthy aging is accompanied by changes in brain activation
patterns in the motor system. In older subjects, unilateral
hand movements typically rely on increased recruitment of
ipsilateral frontoparietal areas. While the two central
concepts of aging‐related brain activity changes,
“Hemispheric Asymmetry Reduction in Older Adults”
(HAROLD), and “Posterior to Anterior Shift in Aging”
(PASA), have initially been suggested in the context of
cognitive tasks and were attributed to compensation, current
knowledge regarding the functional significance of increased
motor system activity remains scarce. We, therefore, used
online interference transcranial magnetic stimulation in
young and older subjects to investigate the role of key
regions of the ipsilateral frontoparietal cortex, that is,
(a) primary motor cortex (M1), (b) dorsal premotor cortex
(dPMC), and (c) anterior intraparietal sulcus (IPS) in the
control of hand movements of different motor demands. Our
data suggest a change of the functional roles of ipsilateral
brain areas in healthy age with a reduced relevance of
ipsilateral M1 and a shift of importance toward dPMC for
repetitive high‐frequency movements. These results support
the notion that mechanisms conceptualized in the models of
“PASA” and “HAROLD” also apply to the motor system.},
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},
pubmed = {pmid:31617272},
UT = {WOS:000490177900001},
doi = {10.1002/hbm.24829},
url = {https://juser.fz-juelich.de/record/865951},
}