Results 61 to 70 of about 1,410,389 (331)
A principle of economy predicts the functional architecture of grid cells
eLife, 2015 Grid cells in the brain respond when an animal occupies a periodic lattice of ‘grid fields’ during navigation. Grids are organized in modules with different periodicity.
Xue-Xin Wei +2 more
doaj +1 more source
Does Optic Flow Explain the Firing of Grid Cells? [PDF]
, 2011 *Problem.* Various cues such as vestibular, sensorimotor, or visual information can lead to the firing of grid cells recorded in entorhinal cortex of rats.
Ennio Mingolla +2 more
core +2 more sources
Fully Convolutional Neural Networks for Dynamic Object Detection in Grid Maps
, 2017 Grid maps are widely used in robotics to represent obstacles in the environment and differentiating dynamic objects from static infrastructure is essential for many practical applications. In this work, we present a methods that uses a deep convolutional
Piewak, Florian +3 more
core +1 more source
On the optimality of grid cells
CoRR, 2016 Grid cells, discovered more than a decade ago [5], are neurons in the brain of mammals that fire when the animal is located near certain specific points in its familiar terrain. Intriguingly, these points form, for a single cell, a two-dimensional triangular grid, not unlike our Figure 3.
openaire +2 more sources
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
openaire +3 more sources
Identifying Core Regions for Path Integration on Medial Entorhinal Cortex of Hippocampal Formation
Brain Sciences, 2020 Path integration is one of the functions that support the self-localization ability of animals. Path integration outputs position information after an animal’s movement when initial-position and movement information is input.
Ayako Fukawa +3 more
doaj +1 more source
What grid cells convey about rat location [PDF]
, 2008 We characterize the relationship between the simultaneously recorded quantities of rodent grid cell firing and the position of the rat. The formalization reveals various properties of grid cell activity when considered as a neural code for representing ...
Brookings, Ted +2 more
core
5-DoF Monocular Visual Localization Over Grid Based Floor
, 2017 Reliable localization is one of the most important parts of an MAV system. Localization in an indoor GPS-denied environment is a relatively difficult problem. Current vision based algorithms track optical features to calculate odometry.
Das, Manash Pratim +2 more
core +1 more source
To be a Grid Cell: Shuffling procedures for determining “Gridness” [PDF]
, 2017 Abstract Grid cells in freely behaving mammals are defined by the strikingly regular periodic spatial distribution of their firing. The standard method of identification calculates the “Gridness” of the spatial firing pattern, with significance being defined relative to the 95 th ...
Barry, C., Burgess, N.
openaire +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source