Results 1 to 10 of about 17,689,950 (324)

Learning place cells, grid cells and invariances with excitatory and inhibitory plasticity [PDF]

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   +4 more sources

Neuromorphic place cells [PDF]

open access: yesNeuromorphic Computing and Engineering, 2023
Abstract A neuromorphic simultaneous localization and mapping (SLAM) system shows potential for more efficient implementation than its traditional counterpart. At the mean time a neuromorphic model of spatial encoding neurons in silicon could provide insights on the functionality and dynamic between each group of cells.
Zhaoqi Chen   +2 more
openaire   +3 more sources

Hippocampal place cells have goal-oriented vector fields during navigation. [PDF]

open access: yesNature, 2022
The hippocampal cognitive map supports navigation towards, or away from, salient locations in familiar environments1. Although much is known about how the hippocampus encodes location in world-centred coordinates, how it supports flexible navigation is ...
Ormond J, O'Keefe J.
europepmc   +2 more sources

The functional organization of excitatory synaptic input to place cells. [PDF]

open access: yesNat Commun, 2021
Hippocampal place cells contribute to mammalian spatial navigation and memory formation. Numerous models have been proposed to explain the location-specific firing of this cognitive representation, but the pattern of excitatory synaptic input leading to ...
Adoff MD   +5 more
europepmc   +2 more sources

Place cells may simply be memory cells: Memory compression leads to spatial tuning and history dependence. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Significance Numerous studies on primates revealed the importance of the hippocampus in memory formation. The rodent literature instead focused on the spatial representations that are observed in navigation experiments. Here, we propose a simple model of
Benna MK, Fusi S.
europepmc   +2 more sources

Place cells create landmarks

open access: yesNeuron, 2021
Hippocampal place cells are known to process path integration signals and sensory information about landmarks. In this issue of Neuron, Fischler-Ruiz et al., 2021 show how localized olfactory cues interact with path integration to drive place cells, turning the cues into landmarks.
K. Thurley
openaire   +3 more sources

An Integrated Index: Engrams, Place Cells, and Hippocampal Memory. [PDF]

open access: yesNeuron, 2020
The hippocampus and its extended network contribute to encoding and recall of episodic experiences. Drawing from recent anatomical, physiological, and behavioral studies, we propose that hippocampal engrams function as indices to mediate memory recall ...
Goode TD, Tanaka KZ, Sahay A, McHugh TJ.
europepmc   +2 more sources

A computational model of learning flexible navigation in a maze by layout-conforming replay of place cells [PDF]

open access: yesFrontiers in Computational Neuroscience, 2023
Recent experimental observations have shown that the reactivation of hippocampal place cells (PC) during sleep or wakeful immobility depicts trajectories that can go around barriers and can flexibly adapt to a changing maze layout.
Yuanxiang Gao, Yuanxiang Gao
doaj   +2 more sources

Targeted Activation of Hippocampal Place Cells Drives Memory-Guided Spatial Behavior.

open access: yesCell, 2020
The hippocampus is crucial for spatial navigation and episodic memory formation. Hippocampal place cells exhibit spatially selective activity within an environment and have been proposed to form the neural basis of a cognitive map of space that supports ...
Robinson NTM   +9 more
europepmc   +4 more sources

Place Cells in Head-Fixed Mice Navigating a Floating Real-World Environment. [PDF]

open access: yesFront Cell Neurosci, 2021
The hippocampal place cell system in rodents has provided a major paradigm for the scientific investigation of memory function and dysfunction. Place cells have been observed in area CA1 of the hippocampus of both freely moving animals, and of head-fixed
Go MA   +6 more
europepmc   +2 more sources

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