000844288 001__ 844288 000844288 005__ 20210129232849.0 000844288 0247_ $$2doi$$a10.1016/j.nicl.2018.02.001 000844288 0247_ $$2Handle$$a2128/17596 000844288 0247_ $$2pmid$$apmid:29552486 000844288 0247_ $$2WOS$$aWOS:000433169000045 000844288 0247_ $$2altmetric$$aaltmetric:34364514 000844288 037__ $$aFZJ-2018-01728 000844288 082__ $$a610 000844288 1001_ $$0P:(DE-HGF)0$$aMichely, J.$$b0 000844288 245__ $$aNetwork connectivity of motor control in the ageing brain 000844288 260__ $$a[Amsterdam u.a.]$$bElsevier$$c2018 000844288 3367_ $$2DRIVER$$aarticle 000844288 3367_ $$2DataCite$$aOutput Types/Journal article 000844288 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1520521276_23728 000844288 3367_ $$2BibTeX$$aARTICLE 000844288 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000844288 3367_ $$00$$2EndNote$$aJournal Article 000844288 520__ $$aOlder individuals typically display stronger regional brain activity than younger subjects during motor performance. However, knowledge regarding age-related changes of motor network interactions between brain regions remains scarce. We here investigated the impact of ageing on the interaction of cortical areas during movement selection and initiation using dynamic causal modelling (DCM). We found that age-related psychomotor slowing was accompanied by increases in both regional activity and effective connectivity, especially for ‘core’ motor coupling targeting primary motor cortex (M1). Interestingly, younger participants within the older group showed strongest connectivity targeting M1, which steadily decreased with advancing age. Conversely, prefrontal influences on the motor system increased with advancing age, and were inversely correlated with reduced parietal influences and core motor coupling. Interestingly, higher net coupling within the prefrontal-premotor-M1 axis predicted faster psychomotor speed in ageing. Hence, as opposed to a uniform age-related decline, our findings are compatible with the idea of different age-related compensatory mechanisms, with an important role of the prefrontal cortex compensating for reduced coupling within the core motor network. 000844288 536__ $$0G:(DE-HGF)POF3-572$$a572 - (Dys-)function and Plasticity (POF3-572)$$cPOF3-572$$fPOF III$$x0 000844288 588__ $$aDataset connected to CrossRef 000844288 7001_ $$0P:(DE-HGF)0$$aVolz, L. J.$$b1 000844288 7001_ $$0P:(DE-Juel1)131684$$aHoffstaedter, F.$$b2 000844288 7001_ $$0P:(DE-HGF)0$$aTittgemeyer, M.$$b3 000844288 7001_ $$0P:(DE-Juel1)131678$$aEickhoff, Simon$$b4 000844288 7001_ $$0P:(DE-Juel1)131720$$aFink, G. 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