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| Hauptseite > Publikationsdatenbank > The differential roles of contralesional frontoparietal areas in cortical reorganization after stroke > print |
| Hauptseite > Publikationsdatenbank > The differential roles of contralesional frontoparietal areas in cortical reorganization after stroke > print |
| 001 | 874655 | ||
| 005 | 20210130004735.0 | ||
| 024 | 7 | _ | |a 10.1016/j.brs.2020.01.016 |2 doi |
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| 100 | 1 | _ | |a Tscherpel, Caroline |0 P:(DE-Juel1)168559 |b 0 |
| 245 | _ | _ | |a The differential roles of contralesional frontoparietal areas in cortical reorganization after stroke |
| 260 | _ | _ | |a New York, NY [u.a.] |c 2020 |b Elsevier |
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| 520 | _ | _ | |a BackgroundStudies examining the contribution of contralesional brain regions to motor recovery after stroke have revealed conflicting results comprising both supporting and disturbing influences. Especially the relevance of contralesional brain regions beyond primary motor cortex (M1) has rarely been studied, particularly concerning the temporal dynamics post-stroke.MethodsWe, therefore, used online transcranial magnetic stimulation (TMS) interference to longitudinally assess the role of contralesional (right) frontoparietal areas for recovery of hand motor function after left hemispheric stroke: contralesional M1, contralesional dorsal premotor cortex (dPMC), and contralesional anterior intraparietal sulcus (IPS). Fourteen stroke patients and sixteen age-matched healthy subjects performed motor tasks of varying complexity with their (paretic) right hand. Motor performance was quantified using three-dimensional kinematic data. All patients were assessed twice, (i) in the first week, and (ii) after more than three months post-stroke.ResultsWhile we did not observe a significant effect of TMS interference on movement kinematics following the stimulation of contralesional M1 and dPMC in the first week post-stroke, we found improvements of motor performance upon interference with contralesional IPS across motor tasks early after stroke, an effect that persisted into the later phase. By contrast, for dPMC, TMS-induced deterioration of motor performance was only evident three months post-stroke, suggesting that a supportive role of contralesional premotor cortex might evolve with reorganization.ConclusionWe here highlight time-sensitive and region-specific effects of contralesional frontoparietal areas after left hemisphere stroke, which may influence on neuromodulation regimes aiming at supporting recovery of motor function post-stroke. |
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| 700 | 1 | _ | |a Grefkes, Christian |0 P:(DE-Juel1)161406 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1016/j.brs.2020.01.016 |g Vol. 13, no. 3, p. 614 - 624 |0 PERI:(DE-600)2404774-0 |n 3 |p 614 - 624 |t Brain stimulation |v 13 |y 2020 |x 1935-861X |
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