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@ARTICLE{Liu:840321,
      author       = {Liu, Liqing and Rosjat, Nils and Popovych, Svitlana and
                      Wang, Bin and Yeldesbay, Azamat and Toth, Tibor I. and
                      Viswanathan, Shivakumar and Grefkes, Christian and Fink,
                      Gereon R. and Daun, Silvia},
      title        = {{A}ge-related changes in oscillatory power affect motor
                      action},
      journal      = {PLoS one},
      volume       = {12},
      number       = {11},
      issn         = {1932-6203},
      address      = {Lawrence, Kan.},
      publisher    = {PLoS},
      reportid     = {FZJ-2017-07863},
      pages        = {e0187911 -},
      year         = {2017},
      abstract     = {With increasing age cognitive performance slows down. This
                      includes cognitive processes essential for motor
                      performance. Additionally, performance of motor tasks
                      becomes less accurate. The objective of the present study
                      was to identify general neural correlates underlying
                      age-related behavioral slowing and the reduction in motor
                      task accuracy. To this end, we continuously recorded EEG
                      activity from 18 younger and 24 older right-handed healthy
                      participants while they were performing a simple finger
                      tapping task. We analyzed the EEG records with respect to
                      local changes in amplitude (power spectrum) as well as phase
                      locking between the two age groups. We found differences
                      between younger and older subjects in the amplitude of
                      post-movement synchronization in the β band of the
                      sensory-motor and medial prefrontal cortex (mPFC). This
                      post-movement β amplitude was significantly reduced in
                      older subjects. Moreover, it positively correlated with the
                      accuracy with which subjects performed the motor task at the
                      electrode FCz, which detects activity of the mPFC and the
                      supplementary motor area. In contrast, we found no
                      correlation between the accurate timing of local neural
                      activity, i.e. phase locking in the δ-θ frequency band,
                      with the reaction and movement time or the accuracy with
                      which the motor task was performed. Our results show that
                      only post-movement β amplitude and not δ-θ phase locking
                      is involved in the control of movement accuracy. The
                      decreased post-movement β amplitude in the mPFC of older
                      subjects hints at an impaired deactivation of this area,
                      which may affect the cognitive control of stimulus-induced
                      motor tasks and thereby motor output.},
      cin          = {INM-3},
      ddc          = {500},
      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},
      UT           = {WOS:000416291900022},
      pubmed       = {pmid:29176853},
      doi          = {10.1371/journal.pone.0187911},
      url          = {https://juser.fz-juelich.de/record/840321},
}