Modeling Grid Cell Distortions with a Grid Cell Calibration Mechanism [PDF]
Cyborg and Bionic SystemsThe medial entorhinal cortex of rodents is known to contain grid cells that exhibit precise periodic firing patterns based on the animal’s position, resulting in a distinct hexagonal pattern in space.
Daniel Strauß +4 more
doaj +4 more sources
Impaired speed encoding and grid cell periodicity in a mouse model of tauopathy [PDF]
eLife, 2020 Dementia is associated with severe spatial memory deficits which arise from dysfunction in hippocampal and parahippocampal circuits. For spatially sensitive neurons, such as grid cells, to faithfully represent the environment these circuits require ...
Thomas Ridler +4 more
doaj +2 more sources
Environmental deformations dynamically shift the grid cell spatial metric [PDF]
eLife, 2018 In familiar environments, the firing fields of entorhinal grid cells form regular triangular lattices. However, when the geometric shape of the environment is deformed, these time-averaged grid patterns are distorted in a grid scale-dependent and local ...
Alexandra T Keinath +2 more
doaj +2 more sources
Place cells dynamically refine grid cell activities to reduce error accumulation during path integration in a continuous attractor model [PDF]
Scientific Reports, 2022 Navigation is one of the most fundamental skills of animals. During spatial navigation, grid cells in the medial entorhinal cortex process speed and direction of the animal to map the environment.
Jose A. Fernandez-Leon +2 more
doaj +2 more sources
Task-anchored grid cell firing is selectively associated with successful path integration-dependent behaviour [PDF]
eLifeGrid firing fields have been proposed as a neural substrate for spatial localisation in general or for path integration in particular. To distinguish these possibilities, we investigate firing of grid and non-grid cells in the mouse medial entorhinal ...
Harry Clark, Matthew F Nolan
doaj +2 more sources
Replay as wavefronts and theta sequences as bump oscillations in a grid cell attractor network [PDF]
eLife, 2019 Grid cells fire in sequences that represent rapid trajectories in space. During locomotion, theta sequences encode sweeps in position starting slightly behind the animal and ending ahead of it. During quiescence and slow wave sleep, bouts of synchronized
Louis Kang, Michael R DeWeese
doaj +2 more sources
An overview of grid-connected fuel cell system for grid support
Energy Reports, 2022 Fuel cell (FC) technology has become popular recently for its low-carbon characteristics. Depending on the different structures of the system and controls of the converter, grid-connected FC systems can achieve various goals in supporting the grid.
Renqi Guo, Quan Li, Nan Zhao
doaj +3 more sources
The self-organization of grid cells in 3D
eLife, 2015 Do we expect periodic grid cells to emerge in bats, or perhaps dolphins, exploring a three-dimensional environment? How long will it take? Our self-organizing model, based on ring-rate adaptation, points at a complex answer.
Federico Stella, Alessandro Treves
doaj +5 more sources
Spatiotemporally random and diverse grid cell spike patterns contribute to the transformation of grid cell to place cell in a neural network model. [PDF]
PLoS ONE, 2019 The medial entorhinal cortex and the hippocampus are brain regions specialized in spatial information processing. While an animal navigates around an environment, grid cells in the medial entorhinal cortex spike at multiple discrete locations, forming ...
Sahn Woo Park +3 more
doaj +2 more sources
Probabilistic Learning by Rodent Grid Cells. [PDF]
PLoS Computational Biology, 2016 Mounting evidence shows mammalian brains are probabilistic computers, but the specific cells involved remain elusive. Parallel research suggests that grid cells of the mammalian hippocampal formation are fundamental to spatial cognition but their diverse
Allen Cheung
doaj +6 more sources