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| 001 | 1050018 | ||
| 005 | 20251219202235.0 | ||
| 024 | 7 | _ | |a 10.1093/braincomms/fcaf391 |2 doi |
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| 082 | _ | _ | |a 610 |
| 100 | 1 | _ | |a Tscherpel, Caroline |b 0 |
| 245 | _ | _ | |a Evoked slow oscillations and dynamic network reorganization after stroke |
| 260 | _ | _ | |a [Oxford] |c 2025 |b Oxford University Press |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 500 | _ | _ | |a G.R.F., C.G. and C.T. are funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 431549029—SFB 1451 (projects B03, B06, C05 and Z03). |
| 520 | _ | _ | |a A focal ischemic lesion is thought to alter neuronal activity beyond the area of structural damage, thereby interfering with the whole network architecture. Here, we used a combination of transcranial magnetic stimulation and electroencephalography in conjunction with dynamic connectivity analyses and graph theory to study alterations and reorganization of cortical connectivity in a cohort of 41 patients longitudinally after stroke. We found a link between an increase in low-frequency coupling in the delta band and alterations in neural information processing in the first weeks after stroke and their relevance for motor outcome >3 months later. We demonstrated that stroke enhances slow activity and delta coupling between frontocentral and parietal regions. In addition, we observed a loss of the physiological network architecture with a decrease in small-worldness and modularity in the delta frequency, implying that a focal ischemic lesion interferes with both cortical information integration and functional segregation within the first weeks after stroke. While we found a link between bifrontal coupling in the alpha spectrum and the degree of the motor deficit in the early post-acute phase, the amount of small-worldness disruption early after stroke indicated the motor outcome in the follow-up session. In contrast, recovery of motor function and cortical reorganization after >3 months post-stroke were paralleled by the normalization of increased low-frequency coupling and a reinstatement of the complex network structure featuring a modular and small-world topology.Keywords: diaschisis; modularity; neuroplasticity; randomness; small-worldness. |
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| 536 | _ | _ | |a DFG project G:(GEPRIS)431549029 - SFB 1451: Schlüsselmechanismen normaler und krankheitsbedingt gestörter motorischer Kontrolle (431549029) |0 G:(GEPRIS)431549029 |c 431549029 |x 1 |
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| 700 | 1 | _ | |a Rosjat, Nils |0 P:(DE-Juel1)164124 |b 2 |
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| 700 | 1 | _ | |a Grefkes, Christian |0 P:(DE-Juel1)161406 |b 7 |e Corresponding author |
| 773 | _ | _ | |a 10.1093/braincomms/fcaf391 |g Vol. 7, no. 6, p. fcaf391 |0 PERI:(DE-600)3020013-1 |n 6 |p fcaf391 |t Brain communications |v 7 |y 2025 |x 2632-1297 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/1050018/files/PDF.pdf |y OpenAccess |
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