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@ARTICLE{Stangl:151578,
      author       = {Stangl, Matthias and Kanitscheider, Ingmar and Riemer,
                      Martin and Fiete, Ila and Wolbers, Thomas},
      title        = {{S}ources of path integration error in young and aging
                      humans},
      journal      = {Nature Communications},
      volume       = {11},
      number       = {1},
      issn         = {2041-1723},
      address      = {[London]},
      publisher    = {Nature Publishing Group UK},
      reportid     = {DZNE-2020-01162},
      pages        = {2626},
      year         = {2020},
      abstract     = {Path integration plays a vital role in navigation: it
                      enables the continuous tracking of one's position in space
                      by integrating self-motion cues. Path integration abilities
                      vary widely across individuals, and tend to deteriorate in
                      old age. The specific causes of path integration errors,
                      however, remain poorly characterized. Here, we combine tests
                      of path integration performance in participants of different
                      ages with an analysis based on the Langevin equation for
                      diffusive dynamics, which allows us to decompose errors into
                      distinct causes that can corrupt path integration
                      computations. We show that, across age groups, the dominant
                      error source is unbiased noise that accumulates with travel
                      distance not elapsed time, suggesting that the noise
                      originates in the velocity input rather than within the
                      integrator. Age-related declines are primarily traced to a
                      growth in this noise. These findings shed light on the
                      contributors to path integration error and the mechanisms
                      underlying age-related navigational deficits.},
      keywords     = {Adult / Aged / Cognitive Aging: physiology / Distance
                      Perception: physiology / Female / Humans / Male / Middle
                      Aged / Models, Neurological / Spatial Memory: physiology /
                      Spatial Navigation: physiology / Spatial Processing:
                      physiology / Walking: physiology / Young Adult},
      cin          = {AG Wolbers},
      ddc          = {500},
      cid          = {I:(DE-2719)1310002},
      pnm          = {344 - Clinical and Health Care Research (POF3-344)},
      pid          = {G:(DE-HGF)POF3-344},
      typ          = {PUB:(DE-HGF)16},
      pmc          = {pmc:PMC7250899},
      pubmed       = {pmid:32457293},
      doi          = {10.1038/s41467-020-15805-9},
      url          = {https://pub.dzne.de/record/151578},
}