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@ARTICLE{Herz:22509,
      author       = {Herz, D.M. and Christensen, M.S. and Reck, C. and Florin,
                      E. and Barbe, M.T. and Stahlhut, C. and Pauls, K.A. and
                      Tittgemeyer, M. and Siebner, H.R. and Timmermann, L.},
      title        = {{T}ask-specific modulation of effective connectivity during
                      two simple unimanual motor tasks: a 122-channel {EEG}
                      study.},
      journal      = {NeuroImage},
      volume       = {59},
      issn         = {1053-8119},
      address      = {Orlando, Fla.},
      publisher    = {Academic Press},
      reportid     = {PreJuSER-22509},
      pages        = {3187 - 3193},
      year         = {2012},
      note         = {This study was supported by funding of the German Research
                      Foundation in the Clinical Research Group 219 LT. DMH was
                      supported by the Koeln Fortune Program/Faculty of Medicine,
                      University of Cologne and a grant from the Danish Medical
                      Research Council (grant-nr. FSS 09-072163). HRS was
                      supported by a Grant of Excellence "ContAct" from
                      Lundbeckfonden (R59 A5399).},
      abstract     = {Neural oscillations are thought to underlie coupling of
                      spatially remote neurons and gating of information within
                      the human sensorimotor system. Here we tested the hypothesis
                      that different unimanual motor tasks are specifically
                      associated with distinct patterns of oscillatory coupling in
                      human sensorimotor cortical areas. In 13 healthy,
                      right-handed subjects, we recorded task-induced neural
                      activity with 122-channel electroencephalography (EEG) while
                      subjects performed fast self-paced extension-flexion
                      movements with the right index finger and an isometric
                      contraction of the right forearm. Task-related modulations
                      of inter-regional coupling within a core motor network
                      comprising the left primary motor cortex (M1), lateral
                      premotor cortex (lPM) and supplementary motor area (SMA)
                      were then modeled using dynamic causal modeling (DCM). A
                      network model postulating coupling both within and across
                      frequencies best captured observed spectral responses
                      according to Bayesian model selection. DCM revealed dominant
                      coupling within the β-band (13-30 Hz) between M1 and SMA
                      during isometric contraction of the forearm, whereas fast
                      repetitive finger movements were characterized by strong
                      coupling within the γ-band (31-48 Hz) and between the θ-
                      (4-7 Hz) and the γ-band. This coupling pattern was mainly
                      expressed in connections from lPM to SMA and from lPM to M1.
                      We infer that human manual motor control involves
                      task-specific modulation of inter-regional oscillatory
                      coupling both within and across distinct frequency bands.
                      The results highlight the potential of DCM to characterize
                      context-specific changes in coupling within functional brain
                      networks.},
      keywords     = {Adolescent / Adult / Electroencephalography: methods /
                      Female / Fingers: physiology / Humans / Isometric
                      Contraction / Male / Motor Cortex: physiology / Nervous
                      System Physiological Processes / Task Performance and
                      Analysis / Young Adult / J (WoSType)},
      cin          = {INM-3},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-3-20090406},
      pnm          = {Funktion und Dysfunktion des Nervensystems (FUEK409) / 333
                      - Pathophysiological Mechanisms of Neurological and
                      Psychiatric Diseases (POF2-333) / 89572 - (Dys-)function and
                      Plasticity (POF2-89572)},
      pid          = {G:(DE-Juel1)FUEK409 / G:(DE-HGF)POF2-333 /
                      G:(DE-HGF)POF2-89572},
      shelfmark    = {Neurosciences / Neuroimaging / Radiology, Nuclear Medicine
                      $\&$ Medical Imaging},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:22146753},
      UT           = {WOS:000301090100014},
      doi          = {10.1016/j.neuroimage.2011.11.042},
      url          = {https://juser.fz-juelich.de/record/22509},
}