ArticleHippocampus2017
Selforganization of modular activity of grid cells.
Article in Hippocampus, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Inhibitory neurons control the consolidation of neural assemblies via adaptation to selective stimuli.Scientific reports · 2023Article
- Angular and linear speed cells in the parahippocampal circuits.Nature communications · 2022Article
- Challenges for Place and Grid Cell Models.Advances in experimental medicine and biology · 2022Review
- Dynamical self-organization and efficient representation of space by grid cells.Current opinion in neurobiology · 2021Review
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- Identifying Core Regions for Path Integration on Medial Entorhinal Cortex of Hippocampal Formation.Brain sciences · 2020Review
- Replay as wavefronts and theta sequences as bump oscillations in a grid cell attractor network.eLife · 2019Article
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- Modeling grid fields instead of modeling grid cells : An effective model at the macroscopic level and its relationship with the underlying microscopic neural system.Journal of computational neuroscience · 2019Article
- Origin and role of path integration in the cognitive representations of the hippocampus: computational insights into open questions.The Journal of experimental biology · 2019Review
- Robust and efficient coding with grid cells.PLoS computational biology · 2018Article
- Selforganization of modular activity of grid cells.Hippocampus · 2017Article
- A single-cell spiking model for the origin of grid-cell patterns.PLoS computational biology · 2017Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A unique topographical representation of space is found in the concerted activity of grid cells in the rodent medial entorhinal cortex. Many among the principal cells in this region exhibit a hexagonal firing pattern, in which each cell expresses its own set of place fields (spatial phases) at the vertices of a triangular grid, the spacing and orientation of which are typically shared with neighboring cells. Grid spacing, in particular, has been found to increase along the dorso-ventral axis of the entorhinal cortex but in discrete steps, that is, with a modular structure. In this study, we show that such a modular activity may result from the self-organization of interacting units, which individually would not show discrete but rather continuously varying grid spacing. Within our "adaptation" network model, the effect of a continuously varying time constant, which determines grid spacing in the isolated cell model, is modulated by recurrent collateral connections, which tend to produce a few subnetworks, akin to magnetic domains, each with its own grid spacing. In agreement with experimental evidence, the modular structure is tightly defined by grid spacing, but also involves grid orientation and distortion, due to interactions across modules. Thus, our study sheds light onto a possible mechanism, other than simply assuming separate networks a priori, underlying the formation of modular grid representations.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.