Results 31 to 40 of about 724,737 (248)
Does the Entorhinal Cortex use the Fourier Transform?
Frontiers in Computational Neuroscience, 2013 Some neurons in the entorhinal cortex (EC) fire bursts when the animal occupies locations organized in a hexagonal grid pattern in their spatial environment.
Jeff eOrchard, Hao eYang, Xiang eJi
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A Spatial Location Representation Method Incorporating Boundary Information
Applied Sciences, 2023 In response to problems concerning the low autonomous localization accuracy of mobile robots in unknown environments and large cumulative errors due to long time running, a spatial location representation method incorporating boundary information (SLRB ...
Hui Jiang, Yukun Zhang
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Framing the grid: effect of boundaries on grid cells and navigation [PDF]
The 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
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Place Cells, Grid Cells, Attractors, and Remapping [PDF]
Neural Plasticity, 2011 Place and grid cells are thought to use a mixture of external sensory information and internal attractor dynamics to organize their activity. Attractor dynamics may explain both why neurons react coherently following sufficiently large changes to the environment (discrete attractors) and how firing patterns move smoothly from one representation to the ...
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Modeling the Effect of Environmental Geometries on Grid Cell Representations
Frontiers in Neural Circuits, 2019 Grid cells are a special class of spatial cells found in the medial entorhinal cortex (MEC) characterized by their strikingly regular hexagonal firing fields.
Samyukta Jayakumar +5 more
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Ring Attractors as the Basis of a Biomimetic Navigation System
Biomimetics, 2023 The ability to navigate effectively in a rich and complex world is crucial for the survival of all animals. Specialist neural structures have evolved that are implicated in facilitating this ability, one such structure being the ring attractor network ...
Thomas C. Knowles +3 more
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Neural encoding of large-scale three-dimensional space – properties and constraints
Frontiers in Psychology, 2015 How the brain represents represent large-scale, navigable space has been the topic of intensive investigation for several decades, resulting in the discovery that neurons in a complex network of cortical and subcortical brain regions co-operatively ...
Kate J Jeffery +3 more
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Automated Measurement of Grid Cell Firing Characteristics
AlgorithmsWe describe GridMet as open-source software that automatically measures the spatial tuning parameters of grid cells, such as firing field size, spacing, and orientation angles.
Nate M. Sutton +3 more
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Grid cells on steeply sloping terrain: evidence for planar rather than volumetric encoding
Frontiers in Psychology, 2015 Neural encoding of navigable space involves a network of structures centred on the hippocampus, whose neurons –place cells – encode current location. Input to the place cells includes afferents from the entorhinal cortex, which contains grid cells. These
Robin Michael Andrew Hayman +3 more
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Disrupting the Grid Cells’ Need for Speed [PDF]
Neuron, 2016 Hinman et al. demonstrate the presence of two speed signals in the rodent medial entorhinal cortex that are differentially affected by muscimol inactivation of medial septum. The results reveal important constraints on several computational models of grid cell firing.
Hayman, R, Burgess, N
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