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© Shalin E. Abraham, Michael Häusser, Christoph Schmidt-Hieber, University College London
The dentate gyrus is one of the few mammalian brain regions where new neurons are generated throughout life. The image was taken with a confocal microscope from a parasagittal slice of the mouse hippocampus. Cells were labelled with fluorescent markers: Newly generated neurons are red (doublecortin), mature neurons are green (NeuN), and nuclei are blue (DAPI)
Publication : Hippocampal Microcircuits. Springer Series in Computational Neuroscience.

Computational Models of Grid Cell Firing

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Hippocampal Microcircuits. Springer Series in Computational Neuroscience. - 02 May 2019

Bush D, Schmidt-Hieber C

In: Cutsuridis V., Graham B., Cobb S., Vida I. (eds) Hippocampal Microcircuits. Springer Series in Computational Neuroscience (2018). Springer, Cham

Grid cells in the medial entorhinal cortex (mEC) fire whenever the animal enters a regular triangular array of locations that cover its environment. Since their discovery, several models that can account for these remarkably regular spatial firing patterns have been proposed. These generally fall into one of three classes, generating grid cell firing patterns either by oscillatory interference, through continuous attractor dynamics, or as a result of spatially modulated input from a place cell population. Neural network simulations have been used to explore the implications and predictions made by each class of model, while subsequent experimental data have allowed their architecture to be refined. Here, we describe implementations of two classes of grid cell model – oscillatory interference and continuous attractor dynamics – alongside a hybrid model that incorporates the principal features of each. These models are intended to be both parsimonious and make testable predictions. We discuss the strengths and weaknesses of each model and the predictions they make for future experimental manipulations of the grid cell network in vivo.

https://link.springer.com/chapter/10.1007%2F978-3-319-99103-0_16