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@ARTICLE{Achilles:863820,
      author       = {Achilles, Elisabeth I. S. and Ballweg, Charlotta S. and
                      Niessen, Eva and Kusch, Mona and Ant, Jana M. and Fink,
                      Gereon R. and Weiss-Blankenhorn, Peter},
      title        = {{N}eural correlates of differential finger gesture
                      imitation deficits in left hemisphere stroke},
      journal      = {NeuroImage: Clinical},
      volume       = {23},
      issn         = {2213-1582},
      address      = {[Amsterdam u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-03801},
      pages        = {101915 -},
      year         = {2019},
      abstract     = {Behavioural studies in apraxic patients revealed
                      dissociations between the processing of meaningful (MF) and
                      meaningless (ML) gestures. Consequently, the existence of
                      two differential neural mechanisms for the imitation of
                      either gesture type has been postulated. While the indirect
                      (semantic) route exclusively enables the imitation of MF
                      gestures, the direct route can be used for the imitation of
                      any gesture type, irrespective of meaning, and thus
                      especially for ML gestures. Concerning neural correlates, it
                      is debated which of the visuo-motor streams (i.e., the
                      ventral steam, the ventro-dorsal stream, or the dorso-dorsal
                      stream) supports the postulated indirect and direct
                      imitation routes.To probe the hypotheses that regions of the
                      dorso-dorsal stream are involved differentially in the
                      imitation of ML gestures and that regions of the
                      ventro-dorsal stream are involved differentially in the
                      imitation of MF gestures, we analysed behavioural (imitation
                      of MF and ML finger gestures) and lesion data of 293
                      patients with a left hemisphere (LH) stroke.Confirming
                      previous work, the current sample of LH stroke patients
                      imitated MF finger gestures better than ML finger gestures.
                      The analysis using voxel-based lesion symptom mapping (VLSM)
                      revealed that LH damage to dorso-dorsal stream areas was
                      associated with an impaired imitation of ML finger gestures,
                      whereas damage to ventro-dorsal regions was associated with
                      a deficient imitation of MF finger gestures.Accordingly, the
                      analyses of the imitation of visually uniform and thus
                      highly comparable MF and ML finger gestures support the
                      dual-route model for gesture imitation at the behavioural
                      and lesion level in a substantial patient sample.
                      Furthermore, the data show that the direct route for ML
                      finger gesture imitation depends on the dorso-dorsal
                      visuo-motor stream while the indirect route for MF finger
                      gesture imitation is related to regions of the ventro-dorsal
                      visuo-motor stream.},
      cin          = {INM-3},
      ddc          = {610},
      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},
      pubmed       = {pmid:31491825},
      UT           = {WOS:000485804400116},
      doi          = {10.1016/j.nicl.2019.101915},
      url          = {https://juser.fz-juelich.de/record/863820},
}