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@ARTICLE{Chen:141514,
author = {Chen, Xiaoli and Vieweg, Paula and Wolbers, Thomas},
title = {{C}omputing distance information from landmarks and
self-motion cues - {D}ifferential contributions of
anterior-lateral vs. posterior-medial entorhinal cortex in
humans.},
journal = {NeuroImage},
volume = {202},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {DZNE-2020-07838},
pages = {116074},
year = {2019},
abstract = {Landmarks and path integration cues are two important
sources of spatial information for navigation. For example,
both can be used to compute positional information, which,
in rodents, has been related to computations in the
entorhinal cortex. In humans, however, if and how the
entorhinal cortex supports landmark-based navigation and
path integration is poorly understood. To address this
important question, we developed a novel spatial navigation
task in which participants learned a target location and
judged relative positions of test locations in relation to
the target. Landmarks and path integration cues were
dissociated, and their reliability levels were manipulated.
Using fMRI adaptation, we investigated whether spatial
distances among the test locations were encoded in the BOLD
responses, separately for landmarks and self-motion cues.
The results showed that the anterior-lateral entorhinal
cortex adapted to the distance between successively visited
test locations when landmarks were used for localization,
meaning that its activation decreased as the distance
between the currently occupied location and the preceding
location decreased. In contrast, the posterior-medial
entorhinal cortex adapted to between-location distance when
path integration cues were used for localization. In
addition, along with the hippocampus and the precuneus, both
entorhinal subregions showed stronger activation in correct
trials than incorrect trials, regardless of cue type and
reliability level. Together, these findings suggest that
subdivisions of entorhinal cortex encode fine-grained
spatial information for different spatial cues, which
provides important insights into how the entorhinal cortex
supports different modes of spatial navigation.},
keywords = {Adult / Cues / Entorhinal Cortex: physiology / Female /
Humans / Magnetic Resonance Imaging / Male / Spatial
Navigation: physiology / Young Adult},
cin = {AG Wolbers},
ddc = {610},
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},
pubmed = {pmid:31386919},
doi = {10.1016/j.neuroimage.2019.116074},
url = {https://pub.dzne.de/record/141514},
}