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@ARTICLE{Hagelweide:850708,
author = {Hagelweide, Klara and Schönberger, Anna R. and Kracht,
Lutz W. and Gründler, Theo O. J. and Fink, Gereon R. and
Schubotz, Ricarda I.},
title = {{M}otor cognition in patients treated with subthalamic
nucleus deep brain stimulation: {L}imits of compensatory
overactivity in {P}arkinson's disease},
journal = {Neuropsychologia},
volume = {117},
issn = {0028-3932},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2018-04511},
pages = {491 - 499},
year = {2018},
abstract = {Recent fMRI findings revealed that impairment in a serial
prediction task in patients suffering from Parkinson's
disease (PD) results from hypoactivity of the SMA.
Furthermore, hyperactivity of the lateral premotor cortex
sustained performance after withdrawal of medication. To
further explore these findings, we here examined the impact
of deep brain stimulation of the subthalamic nucleus on the
activity of the putamen and premotor areas while performing
the serial prediction task. To this end, we measured eight
male PD patients ON and OFF deep brain stimulation and eight
healthy age-matched male controls using [15O] water positron
emission tomography to measure regional cerebral blood flow.
As expected, PD patients showed poorer performance than
healthy controls while performance did not differ between
OFF and ON stimulation. Hypoactivity of the putamen and
hyperactivity of the left lateral premotor cortex was found
in patients compared to controls. Lateral premotor
hyperactivity further increased OFF compared to ON
stimulation and was positively related to task performance.
These results confirm that the motor loop's dysfunction has
impact on cognitive processes (here: prediction of serial
stimuli) in PD. Extending prior data regarding the role of
the lateral premotor cortex in cognitive compensation, our
results indicate that lateral premotor cortex hyperactivity,
while beneficial in moderate levels of impairment, might
fail to preserve performance in more severe stages of the
motor loop's degeneration.},
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:30003903},
UT = {WOS:000450540800050},
doi = {10.1016/j.neuropsychologia.2018.07.007},
url = {https://juser.fz-juelich.de/record/850708},
}