% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Volz:836406,
author = {Volz, L. J. and Vollmer, M. and Michely, J. and Fink, G. R.
and Rothwell, J. C. and Grefkes, C.},
title = {{T}ime-dependent functional role of the contralesional
motor cortex after stroke},
journal = {NeuroImage: Clinical},
volume = {16},
issn = {2213-1582},
address = {[Amsterdam u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2017-05527},
pages = {165 - 174},
year = {2017},
abstract = {After stroke, movements of the paretic hand rely on altered
motor network dynamics typically including additional
activation of the contralesional primary motor cortex (M1).
The functional implications of contralesional M1 recruitment
to date remain a matter of debate.We here assessed the role
of contralesional M1 in 12 patients recovering from a
first-ever stroke using online transcranial magnetic
stimulation (TMS): Short bursts of TMS were administered
over contralesional M1 or a control site (occipital vertex)
while patients performed different motor tasks with their
stroke-affected hand.In the early subacute phase (1–2
weeks post-stroke), we observed significant improvements in
maximum finger tapping frequency when interfering with
contralesional M1, while maximum grip strength and speeded
movement initiation remained unaffected. After > 3 months of
motor recovery, disruption of contralesional M1 activity did
not interfere with performance in any of the three tasks,
similar to what we observed in healthy controls.In patients
with mild to moderate motor deficits, contralesional M1 has
a task- and time-specific negative influence on motor
performance of the stroke-affected hand. Our results help to
explain previous contradicting findings on the role of
contralesional M1 in recovery of function.},
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:28794977},
UT = {WOS:000413235100018},
doi = {10.1016/j.nicl.2017.07.024},
url = {https://juser.fz-juelich.de/record/836406},
}