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Computational Models of Grid Cells [PDF]
Neuron, 2011 Grid cells are space-modulated neurons with periodic firing fields. In moving animals, the multiple firing fields of an individual grid cell form a triangular pattern tiling the entire space available to the animal. Collectively, grid cells are thought to provide a context-independent metric representation of the local environment.
Giocomo, Lisa M. +2 more
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Recurrent amplification of grid‐cell activity [PDF]
Hippocampus, 2020 AbstractHigh‐level cognitive abilities such as navigation and spatial memory are thought to rely on the activity of grid cells in the medial entorhinal cortex (MEC), which encode the animal's position in space with periodic triangular patterns. Yet the neural mechanisms that underlie grid‐cell activity are still unknown.
Tiziano D'Albis, Richard Kempter
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A unified theory for the computational and mechanistic origins of grid cells
Neuron, 2020 The discovery of entorhinal grid cells has generated considerable interest in how and why hexagonal firing fields might mechanistically emerge in a generic manner from neural circuits, and what their computational significance might be.
Ben Sorscher +4 more
semanticscholar +1 more source
Neural Computation, 2022 Grid cells play a principal role in enabling mammalian cognitive representations of ambient environments. The key property of these cells—the regular arrangement of their firing fields—is commonly viewed as means for establishing spatial scales or encoding specific locations.
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Grid cells' need for speed [PDF]
Nature Neuroscience, 2016 Grid-firing fields of neurons in the entorhinal cortex are thought to require inputs encoding running speed. Glutamatergic projections from the medial septum may be one of the inputs that provide these speed signals.
Alfredo Gonzalez-Sulser, Matthew F Nolan
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Frontiers in Systems Neuroscience, 2020 The brain is capable of registering a constellation of events, encountered only once, as an episodic memory that can last for a lifetime. As evidenced by the clinical case of the patient HM, memories preserving their episodic nature still depend on the ...
Krisztián A. Kovács
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Network mechanisms of grid cells [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2014 One of the major breakthroughs in neuroscience is the emerging understanding of how signals from the external environment are extracted and represented in the primary sensory cortices of the mammalian brain. The operational principles of the rest of the cortex, however, have essentially remained in the dark.
Moser, E. I., Moser, M.-B., Roudi, Y.
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Grid cells and cortical representation [PDF]
Nature Reviews Neuroscience, 2014 One of the grand challenges in neuroscience is to comprehend neural computation in the association cortices, the parts of the cortex that have shown the largest expansion and differentiation during mammalian evolution and that are thought to contribute profoundly to the emergence of advanced cognition in humans. In this Review, we use grid cells in the
Edvard I. Moser +5 more
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Place-cell capacity and volatility with grid-like inputs
eLife, 2021 What factors constrain the arrangement of the multiple fields of a place cell? By modeling place cells as perceptrons that act on multiscale periodic grid-cell inputs, we analytically enumerate a place cell’s repertoire – how many field arrangements it ...
Man Yi Yim +3 more
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Grid Cell Hexagonal Patterns Formed by Fast Self-Organized Learning within Entorhinal Cortex [PDF]
, 2009 Grid cells in the dorsal segment of the medial entorhinal cortex (dMEC) show remarkable hexagonal activity patterns, at multiple spatial scales, during spatial navigation. How these hexagonal patterns arise has excited intense interest. It has previously
Alonso +45 more
core +2 more sources