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@ARTICLE{Dombert:825213,
      author       = {Dombert, Pascasie L. and Kuhns, Anna and Mengotti, Paola
                      and Fink, Gereon R. and Vossel, Simone},
      title        = {{F}unctional mechanisms of probabilistic inference in
                      feature- and space-based attentional systems},
      journal      = {NeuroImage},
      volume       = {142},
      issn         = {1053-8119},
      address      = {Orlando, Fla.},
      publisher    = {Academic Press},
      reportid     = {FZJ-2016-07684},
      pages        = {553 - 564},
      year         = {2016},
      abstract     = {Humans flexibly attend to features or locations and these
                      processes are influenced by the probability of sensory
                      events. We combined computational modeling of response times
                      with fMRI to compare the functional correlates of
                      (re-)orienting, and the modulation by probabilistic
                      inference in spatial and feature-based attention systems.
                      Twenty-four volunteers performed two task versions with
                      spatial or color cues. Percentage of cue validity changed
                      unpredictably. A hierarchical Bayesian model was used to
                      derive trial-wise estimates of probability-dependent
                      attention, entering the fMRI analysis as parametric
                      regressors. Attentional orienting activated a dorsal
                      frontoparietal network in both tasks, without significant
                      parametric modulation. Spatially invalid trials activated a
                      bilateral frontoparietal network and the precuneus, while
                      invalid feature trials activated the left intraparietal
                      sulcus (IPS). Probability-dependent attention modulated
                      activity in the precuneus, left posterior IPS, middle
                      occipital gyrus, and right temporoparietal junction for
                      spatial attention, and in the left anterior IPS for
                      feature-based and spatial attention. These findings provide
                      novel insights into the generality and specificity of the
                      functional basis of attentional control. They suggest that
                      probabilistic inference can distinctively affect each
                      attentional subsystem, but that there is an overlap in the
                      left IPS, which responds to both spatial and feature-based
                      expectancy violations.},
      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},
      UT           = {WOS:000387986000046},
      pubmed       = {pmid:27523448},
      doi          = {10.1016/j.neuroimage.2016.08.010},
      url          = {https://juser.fz-juelich.de/record/825213},
}