Results 21 to 30 of about 16,525,519 (328)

The Integration of Goal-Directed Signals onto Spatial Maps of Hippocampal Place Cells

open access: yesCell Reports, 2019
Spatial firing of hippocampal place cells varies depending on the animal's behavior relative to its goals. Here, rats were trained to approach visually guided reward ports in a two-dimensional open field.
Hideyoshi Igata   +2 more
exaly   +2 more sources

Learning place cells, grid cells and invariances with excitatory and inhibitory plasticity

open access: yeseLife, 2018
Neurons in the hippocampus and adjacent brain areas show a large diversity in their tuning to location and head direction, and the underlying circuit mechanisms are not yet resolved.
Simon Nikolaus Weber, Henning Sprekeler
doaj   +2 more sources

From grid cells to place cells with realistic field sizes

open access: yesPLoS ONE, 2017
While grid cells in the medial entorhinal cortex (MEC) of rodents have multiple, regularly arranged firing fields, place cells in the cornu ammonis (CA) regions of the hippocampus mostly have single spatial firing fields.
Torsten Neher, A. Azizi, Sen Cheng
semanticscholar   +2 more sources

Dynamic gamma modulation of hippocampal place cells predominates development of theta sequences [PDF]

open access: yeseLife
The experience-dependent spatial cognitive process requires sequential organization of hippocampal neural activities by theta rhythm, which develops to represent highly compressed information for rapid learning.
Ning Wang   +9 more
doaj   +2 more sources

A memory model of rodent spatial navigation in which place cells are memories arranged in a grid and grid cells are non-spatial [PDF]

open access: yeseLife
A theory and neurocomputational model are presented that explain grid cell responses as the byproduct of equally dissimilar hippocampal memories. On this account, place and grid cells are best understood as the natural consequence of memory encoding and ...
David E Huber
doaj   +2 more sources

Social place-cells in the bat hippocampus

open access: yesScience, 2018
The representation of others in space Different sets of neurons encode the spatial position and orientation of an organism. However, social animals need to know the position of other individuals for social interactions, observational learning, and group navigation.
Omer, David B.   +3 more
openaire   +3 more sources

Methodological Caveats in the Detection of Coordinated Replay between Place Cells and Grid Cells

open access: yesFrontiers in Systems Neuroscience, 2017
At rest, hippocampal “place cells,” neurons with receptive fields corresponding to specific spatial locations, reactivate in a manner that reflects recently traveled trajectories.
John B. Trimper   +10 more
doaj   +2 more sources

From grid cells and visual place cells to multimodal place cell: a new robotic architecture

open access: yesFrontiers in Neurorobotics, 2015
In the present study, a new architecture for the generation of grid cells (GC) was implemented on a real robot. In order to test this model a simple place cell (PC) model merging visual PC activity and GC was developed. GC were first built from a simple "several to one" projection (similar to a modulo operation) performed on a neural field coding for ...
Jauffret, Adrien   +2 more
openaire   +4 more sources

Learning Spatiotemporal Properties of Hippocampal Place Cells. [PDF]

open access: yeseNeuro, 2022
It is well known that hippocampal place cells have spatiotemporal properties, namely, that they generally respond to a single spatial location of a small environment, and they also display the temporal response property of theta phase precession, namely,
Lian Y, Burkitt AN.
europepmc   +2 more sources

A Review of Neurologgers for Extracellular Recording of Neuronal Activity in the Brain of Freely Behaving Wild Animals

open access: yesMicromachines, 2022
Simultaneous monitoring of animal behavior and neuronal activity in the brain enables us to examine the neural underpinnings of behaviors. Conventionally, the neural activity data are buffered, amplified, multiplexed, and then converted from analog to ...
Kaoru Ide, Susumu Takahashi
doaj   +1 more source

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