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@ARTICLE{Vossel:281916,
      author       = {Vossel, Simone and Weidner, Ralph and Moos, Katharina and
                      Fink, Gereon R.},
      title        = {{I}ndividual attentional selection capacities are reflected
                      in interhemispheric connectivity of the parietal cortex},
      journal      = {NeuroImage},
      volume       = {129},
      issn         = {1053-8119},
      address      = {Orlando, Fla.},
      publisher    = {Academic Press},
      reportid     = {FZJ-2016-01572},
      pages        = {148 - 158},
      year         = {2016},
      abstract     = {Modelling psychophysical data using the Theory of Visual
                      Attention (TVA) allows for a quantification of attentional
                      sub-processes, such as the resolution of competition amongst
                      multiple stimuli by top-down control signals for target
                      selection (TVA-parameter α). This fMRI study investigated
                      the neural correlates of α by comparing activity
                      differences and changes of effective connectivity between
                      conditions where a target was accompanied by a distractor or
                      by a second target. Twenty-five participants performed a
                      partial report task inside the MRI scanner. The left angular
                      gyrus (ANG), medial frontal, and posterior cingulate cortex
                      showed higher activity when a target was accompanied by a
                      distractor as opposed to a second target. The reverse
                      contrast yielded activation of a bilateral fronto-parietal
                      network, the anterior insula, anterior cingulate cortex, and
                      left inferior occipital gyrus. A psychophysiological
                      interaction analysis revealed that the connectivity between
                      left ANG and the left and right supramarginal gyrus (SMG),
                      left anterior insula, and right putamen was enhanced in the
                      target-distractor condition in participants with worse
                      attentional top-down control. Dynamic causal modelling
                      suggested that the connection from left ANG to right SMG
                      during distractor presence was modulated by α. Our data
                      show that interindividual differences in attentional
                      processing are reflected in changes of effective
                      connectivity without significant differences in activation
                      strength of network nodes.},
      cin          = {INM-3},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-3-20090406},
      pnm          = {572 - (Dys-)function and Plasticity (POF3-572) / 111 -
                      Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-572 / G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000372745300013},
      pubmed       = {pmid:26827815},
      doi          = {10.1016/j.neuroimage.2016.01.054},
      url          = {https://juser.fz-juelich.de/record/281916},
}