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@ARTICLE{Eckers:133195,
      author       = {Eckers, C. and Kröger, B.J. and Sass, K. and Heim, Stefan},
      title        = {{N}eural representation of the sensorimotor
                      speech-action-repository},
      journal      = {Frontiers in human neuroscience},
      volume       = {7},
      number       = {121},
      issn         = {1662-5161},
      address      = {Lausanne},
      publisher    = {Frontiers Research Foundation},
      reportid     = {FZJ-2013-01733},
      pages        = {1-10},
      year         = {2013},
      abstract     = {A speech-action-repository (SAR) or “mental syllabary”
                      has been proposed as a central module for sensorimotor
                      processing of syllables. In this approach, syllables
                      occurring frequently within language are assumed to be
                      stored as holistic sensorimotor patterns, while non-frequent
                      syllables need to be assembled from sub-syllabic units.
                      Thus, frequent syllables are processed efficiently and
                      quickly during production or perception by a direct
                      activation of their sensorimotor patterns. Whereas several
                      behavioral psycholinguistic studies provided evidence in
                      support of the existence of a syllabary, fMRI studies have
                      failed to demonstrate its neural reality. In the present
                      fMRI study a reaction paradigm using homogeneous vs.
                      heterogeneous syllable blocks are used during overt vs.
                      covert speech production and auditory vs. visual
                      presentation modes. Two complementary data analyses were
                      performed: (1) in a logical conjunction, activation for
                      syllable processing independent of input modality and
                      response mode was assessed, in order to support the
                      assumption of existence of a supramodal hub within a SAR.
                      (2) In addition priming effects in the BOLD response in
                      homogeneous vs. heterogeneous blocks were measured in order
                      to identify brain regions, which indicate reduced activity
                      during multiple production/perception repetitions of a
                      specific syllable in order to determine state maps.
                      Auditory-visual conjunction analysis revealed an activation
                      network comprising bilateral precentral gyrus and left
                      inferior frontal gyrus (area 44). These results are
                      compatible with the notion of a supramodal hub within the
                      SAR. The main effect of homogeneity priming revealed an
                      activation pattern of areas within frontal, temporal, and
                      parietal lobe. These findings are taken to represent
                      sensorimotor state maps of the SAR. In conclusion, the
                      present study provided preliminary evidence for a SAR.},
      cin          = {INM-1 / JARA-BRAIN},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-1-20090406 / $I:(DE-82)080010_20140620$},
      pnm          = {333 - Pathophysiological Mechanisms of Neurological and
                      Psychiatric Diseases (POF2-333)},
      pid          = {G:(DE-HGF)POF2-333},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000317333200001},
      pubmed       = {pmid:23576970},
      doi          = {10.3389/fnhum.2013.00121},
      url          = {https://juser.fz-juelich.de/record/133195},
}