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@ARTICLE{Chen:268847,
      author       = {Chen, Xiaoli and Wei, Ziwei and Wolbers, Thomas},
      title        = {{R}epetition {S}uppression {R}eveals {C}ue-specific
                      {S}patial {R}epresentations for {L}andmarks and
                      {S}elf-motion {C}ues in {H}uman {R}etrosplenial {C}ortex.},
      journal      = {eNeuro},
      volume       = {11},
      number       = {4},
      issn         = {2373-2822},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {DZNE-2024-00351},
      pages        = {ENEURO.0294-23.2024},
      year         = {2024},
      abstract     = {The efficient use of various spatial cues within a setting
                      is crucial for successful navigation. Two fundamental forms
                      of spatial navigation, landmark-based and self-motion-based,
                      engage distinct cognitive mechanisms. The question of
                      whether these modes invoke shared or separate spatial
                      representations in the brain remains unresolved. While
                      nonhuman animal studies have yielded inconsistent results,
                      human investigation is limited. In our previous work (Chen
                      et al., 2019), we introduced a novel spatial navigation
                      paradigm utilizing ultra-high field fMRI to explore neural
                      coding of positional information. We found that different
                      entorhinal subregions in the right hemisphere encode
                      positional information for landmarks and self-motion cues.
                      The present study tested the generalizability of our
                      previous finding with a modified navigation paradigm.
                      Although we did not replicate our previous finding in the
                      entorhinal cortex, we identified adaptation-based
                      allocentric positional codes for both cue types in the
                      retrosplenial cortex (RSC), which were not confounded by the
                      path to the spatial location. Crucially, the multi-voxel
                      patterns of these spatial codes differed between the cue
                      types, suggesting cue-specific positional coding. The
                      parahippocampal cortex exhibited positional coding for
                      self-motion cues, which was not dissociable from path
                      length. Finally, the brain regions involved in successful
                      navigation differed from our previous study, indicating
                      overall distinct neural mechanisms recruited in our two
                      studies. Taken together, the current findings demonstrate
                      cue-specific allocentric positional coding in the human RSC
                      in the same navigation task for the first time and that
                      spatial representations in the brain are contingent on
                      specific experimental conditions.},
      keywords     = {Humans / Animals / Cues / Gyrus Cinguli / Entorhinal Cortex
                      / Brain / Spatial Navigation / Space Perception / adaptation
                      (Other) / entorhinal cortex (Other) / landmark (Other) /
                      path integration (Other) / retrosplenial cortex (Other) /
                      spatial navigation (Other)},
      cin          = {AG Wolbers},
      ddc          = {610},
      cid          = {I:(DE-2719)1310002},
      pnm          = {353 - Clinical and Health Care Research (POF4-353)},
      pid          = {G:(DE-HGF)POF4-353},
      typ          = {PUB:(DE-HGF)16},
      pmc          = {pmc:PMC11007318},
      pubmed       = {pmid:38519127},
      doi          = {10.1523/ENEURO.0294-23.2024},
      url          = {https://pub.dzne.de/record/268847},
}