Results 41 to 50 of about 1,410,389 (331)

How to build a grid cell [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2014
Neurons in the medial entorhinal cortex fire action potentials at regular spatial intervals, creating a striking grid-like pattern of spike rates spanning the whole environment of a navigating animal. This remarkable spatial code may represent a neural map for path integration.
C. Schmidt-Hieber, M. Hausser
openaire   +3 more sources

Trip Generation Prediction Based on the Convolutional Neural Network-Multidimensional Long-Short Term Memory Neural Network Model at Grid Cell Scale

open access: yesIEEE Access, 2021
The prediction of trip generation is an essential problem for effective traffic engineering and urban management. Traditional methods are on the large spatial scale (e.g. Traffic analysis Zone, TAZ), based on the single source and fewer types data. It is
Tianzheng Xiao   +3 more
doaj   +1 more source

Extracting grid cell characteristics from place cell inputs using non-negative principal component analysis

open access: yeseLife, 2016
Many recent models study the downstream projection from grid cells to place cells, while recent data have pointed out the importance of the feedback projection. We thus asked how grid cells are affected by the nature of the input from the place cells. We
Yedidyah Dordek   +3 more
doaj   +1 more source

Building a Nest by an Automaton [PDF]

open access: yes, 2019
A robot modeled as a deterministic finite automaton has to build a structure from material available to it. The robot navigates in the infinite oriented grid Z x Z. Some cells of the grid are full (contain a brick) and others are empty.
Czyzowicz, Jurek   +2 more
core   +2 more sources

Using Grid Cells for Navigation [PDF]

open access: yesNeuron, 2015
Mammals are able to navigate to hidden goal locations by direct routes that may traverse previously unvisited terrain. Empirical evidence suggests that this "vector navigation" relies on an internal representation of space provided by the hippocampal formation.
Bush, D, Barry, C, Manson, D, Burgess, N
openaire   +3 more sources

Recurrent amplification of grid‐cell activity [PDF]

open access: yesHippocampus, 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
openaire   +3 more sources

Streamline integration as a method for structured grid generation in X-point geometry [PDF]

open access: yes, 2018
We investigate structured grids aligned to the contours of a two-dimensional flux-function with an X-point (saddle point). Our theoretical analysis finds that orthogonal grids exist if and only if the Laplacian of the flux-function vanishes at the X ...
Einkemmer, L.   +3 more
core   +2 more sources

Visual landmarks sharpen grid cell metric and confer context specificity to neurons of the medial entorhinal cortex

open access: yeseLife, 2016
Neurons of the medial entorhinal cortex (MEC) provide spatial representations critical for navigation. In this network, the periodic firing fields of grid cells act as a metric element for position.
José Antonio Pérez-Escobar   +4 more
doaj   +1 more source

Entorhinal Neurons Exhibit Cue Locking in Rodent VR

open access: yesFrontiers in Cellular Neuroscience, 2019
The regular firing pattern exhibited by medial entorhinal (mEC) grid cells of locomoting rodents is hypothesized to provide spatial metric information relevant for navigation.
Giulio Casali   +5 more
doaj   +1 more source

Framing the grid: effect of boundaries on grid cells and navigation [PDF]

open access: yesThe Journal of Physiology, 2016
AbstractCells in the mammalian hippocampal formation subserve neuronal representations of environmental location and support navigation in familiar environments. Grid cells constitute one of the main cell types in the hippocampal formation and are widely believed to represent a universal metric of space independent of external stimuli.
Julija, Krupic   +3 more
openaire   +2 more sources

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