Cited by 299Memory and Neural MechanismsSpatial Cognition and NavigationVestibular and auditory disorders

Retrosplenial cortex maps the conjunction of internal and external spaces

Alexander, Andrew S, Nitz, Douglas A·2015·Nature Neuroscience

Abstract

Intelligent behavior demands not only multiple forms of spatial representation, but also coordination among the brain regions mediating those representations. Retrosplenial cortex is densely interconnected with the majority of cortical and subcortical brain structures that register an animal's position in multiple internal and external spatial frames of reference. This unique anatomy suggests that it functions to integrate distinct forms of spatial information and provides an interface for transformations between them. Evidence for this was found in rats traversing two different routes placed at different environmental locations. Retrosplenial ensembles robustly encoded conjunctions of progress through the current route, position in the larger environment and the left versus right turning behavior of the animal. Thus, the retrosplenial cortex has the requisite dynamics to serve as an intermediary between brain regions generating different forms of spatial mapping, a result that is consistent with navigational and episodic memory impairments following damage to this region in humans.

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Crossref · 10.1038/nn.4058

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  • RSC neurons encode common features of routes with repeating segments, periodically firing across segments of routes that share a similar shape.

    “For example, RSC neurons encode common features of routes with repeating segments, periodically firing across segments of routes that share a similar shape 151 .”

    From From cognitive maps to spatial schemas (2023) · cites this paper as [151]

  • The repetition-activation patterns in RSC reflect similarity between metric distances travelled in different directions from specified spatial boundaries, akin to a local code for the space traversed.

    “Although this finding supports the importance of a global code in capturing similar spatial contexts, the repetition-activation patterns reflect similarity between metric distances travelled in different directions from specified spatial boundaries, akin to a local code for the space traversed 151 .”

    From From cognitive maps to spatial schemas (2023) · cites this paper as [151]

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Authors
Alexander, A. S., & Nitz, D. A.
Affiliations
University of California San Diego (US)
Corresponding author
Nitz, Douglas A
Venue
Nature Neuroscience
Published
2015-07-06
Volume
18
Issue
8
Pages
1143-1151
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W975385166
Cited by
299
References
54
Citations by year
2026: 20 · 2025: 32 · 2024: 26 · 2023: 25 · 2022: 29 · 2021: 27 · 2020: 39 · 2019: 34 · 2018: 36 · 2017: 16 · 2016: 14 · 2015: 1
FWCI
13.44
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of California, San Diego
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
  • Life Sciences › Neuroscience › Neurology › Vestibular and auditory disorders
Keywords
retrosplenial cortex, spatial representation, turning behavior, neuronal ensembles, spatial integration, navigation, episodic memory, rats
MeSH terms
Animals, Behavior, Animal, Cerebral Cortex, Male, Nerve Net, Neurons, Space Perception, Patch-Clamp Techniques, Rats, Long-Evans, Rats, Spatial Navigation

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