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@ARTICLE{Sarfeld:14893,
      author       = {Sarfeld, A.S. and Diekhoff, S. and Wang, L.E. and Liuzzi,
                      G. and Uludag, K. and Eickhoff, S.B. and Fink, G.R. and
                      Grefkes, C.},
      title        = {{C}onvergence of human brain mapping tools:
                      {N}euronavigated {TMS} parameters and f{MRI} activity in the
                      hand motor area},
      journal      = {Human brain mapping},
      volume       = {33},
      issn         = {1065-9471},
      address      = {New York, NY},
      publisher    = {Wiley-Liss},
      reportid     = {PreJuSER-14893},
      pages        = {1107 - 11023},
      year         = {2012},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Functional magnetic resonance imaging (fMRI) and
                      transcranial magnetic stimulation (TMS) are well-established
                      tools for investigating the human motor system in-vivo. We
                      here studied the relationship between movement-related fMRI
                      signal changes in the primary motor cortex (M1) and
                      electrophysiological properties of the hand motor area
                      assessed with neuronavigated TMS in 17 healthy subjects. The
                      voxel showing the highest task-related BOLD response in the
                      left hand motor area during right hand movements was
                      identified for each individual subject. This fMRI peak voxel
                      in M1 served as spatial target for coil positioning during
                      neuronavigated TMS. We performed correlation analyses
                      between TMS parameters, BOLD signal estimates and effective
                      connectivity parameters of M1 assessed with dynamic causal
                      modeling (DCM). The results showed a negative correlation
                      between the movement-related BOLD signal in left M1 and
                      resting as well as active motor threshold (MT) obtained for
                      left M1. The DCM analysis revealed that higher excitability
                      of left M1 was associated with a stronger coupling between
                      left supplementary motor area (SMA) and M1. Furthermore,
                      BOLD activity in left M1 correlated with ipsilateral silent
                      period (ISP), i.e. the stronger the task-related BOLD
                      response in left M1, the higher interhemispheric inhibition
                      effects targeting right M1. DCM analyses revealed a positive
                      correlation between the coupling of left SMA with left M1
                      and the duration of ISP. The data show that TMS parameters
                      assessed for the hand area of M1 do not only reflect the
                      intrinsic properties at the stimulation site but also
                      interactions with remote areas in the human motor system.},
      cin          = {INM-1 / INM-3},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)INM-3-20090406},
      pnm          = {Funktion und Dysfunktion des Nervensystems (FUEK409) /
                      89572 - (Dys-)function and Plasticity (POF2-89572)},
      pid          = {G:(DE-Juel1)FUEK409 / G:(DE-HGF)POF2-89572},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:21520346},
      UT           = {WOS:000302533100008},
      doi          = {10.1002/hbm.21272},
      url          = {https://juser.fz-juelich.de/record/14893},
}