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@ARTICLE{Zeng:874941,
      author       = {Zeng, Hang and Fink, G. R. and Weidner, R.},
      title        = {{V}isual size processing in early visual areas follows
                      lateral occipital cortex involvement},
      journal      = {The journal of neuroscience},
      volume       = {40},
      number       = {22},
      issn         = {0270-6474},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2020-01713},
      pages        = {4410-4417},
      year         = {2020},
      abstract     = {Neural activation in the early visual cortex (EVC) reflects
                      the perceived rather than retinal size of stimuli,
                      suggesting that feedback possibly from extrastriate regions
                      modulates retinal size information in EVC. Meanwhile, the
                      lateral occipital cortex (LOC) has been suggested to be
                      critically involved in object size processing. To test for
                      the potential contributions of feedback modulations on size
                      representations in EVC, we investigated the dynamics of
                      relevant processes using transcranial magnetic stimulation
                      (TMS). Specifically, we briefly disrupted the neural
                      activity of EVC and LOC at early, intermediate, and late
                      time windows while participants performed size judgement
                      tasks in either an illusory or neutral context. TMS over EVC
                      and LOC allowed determining whether these two brain regions
                      are relevant for generating phenomenological size
                      impressions. Furthermore, the temporal order of TMS effects
                      allowed inferences on the dynamics of information exchange
                      between the two areas. Particularly, if feedback signals
                      from LOC to EVC are crucial for generating altered size
                      representations in EVC, then TMS effects over EVC should be
                      observed simultaneously or later than the effects following
                      LOC stimulation. The data from 20 humans (13 females)
                      revealed that TMS over both EVC and LOC impaired illusory
                      size perception. However, the strongest effects of TMS
                      applied over EVC occurred later than those of LOC,
                      supporting a functionally relevant feedback modulation from
                      LOC to EVC for scaling size information. Our results suggest
                      that context integration and the concomitant change of
                      perceived size require LOC and result in modulating
                      representations in EVC via recurrent processing.},
      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:32350038},
      UT           = {WOS:000535695400012},
      doi          = {10.1523/JNEUROSCI.2437-19.2020},
      url          = {https://juser.fz-juelich.de/record/874941},
}