Results 11 to 20 of about 16,525,519 (328)

Place Cells, Grid Cells, and Memory [PDF]

Cold Spring Harbor Perspectives in Biology, 2015
The hippocampal system is critical for storage and retrieval of declarative memories, including memories for locations and events that take place at those locations. Spatial memories place high demands on capacity. Memories must be distinct to be recalled without interference and encoding must be fast.
Moser, May-Britt, Rowland, David Clayton, Moser, Edvard Ingjald   +2 more
semanticscholar   +5 more sources

Neuromorphic Place Cells

CoRR, 2023
A neuromorphic SLAM system shows potential for more efficient implementation than its traditional counterpart. We demonstrate a mixed-mode implementation for spatial encoding neurons including theta cells, vector cells, and place cells. Together, they form a biologically plausible network that could reproduce the localization functionality of place ...
Zhaoqi Chen, Ralph Etienne-Cummings
openaire   +3 more sources

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

Front 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, Rogers J, Gava GP, Davey CE, Prado S, Liu Y, Schultz SR.   +6 more
europepmc   +2 more sources

A Positioning Method Based on Place Cells and Head-Direction Cells for Inertial/Visual Brain-Inspired Navigation System [PDF]

Sensors, 2021
Mammals rely on vision and self-motion information in nature to distinguish directions and navigate accurately and stably. Inspired by the mammalian brain neurons to represent the spatial environment, the brain-inspired positioning method based on multi ...
Yudi Chen, Zhi Xiong, Jianye Liu, Chuang Yang, Lijun Chao, Yang Peng   +5 more
doaj   +2 more sources

Scopolamine Impairs Spatial Information Recorded With “Miniscope” Calcium Imaging in Hippocampal Place Cells [PDF]

Frontiers in Neuroscience, 2021
The hippocampus and associated cholinergic inputs have important roles in spatial memory in rodents. Muscarinic acetylcholine receptors (mAChRs) are involved in the communication of cholinergic signals and regulate spatial memory. They have been found to
Dechuan Sun, Dechuan Sun, Ranjith Rajasekharan Unnithan, Chris French   +3 more
doaj   +2 more sources

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 ...
Jeffery, KJ, Kathryn J. Jeffery, Jeffery, Kathryn J.   +2 more
openaire   +6 more sources

Learning place cells and remapping by decoding the cognitive map [PDF]

eLife
Hippocampal place cells are known for their spatially selective firing and are believed to encode an animal’s location while forming part of a cognitive map of space.
Markus Borud Pettersen, Vemund Schøyen, Anders Malthe-Sørenssen, Mikkel E Lepperød   +3 more
doaj   +2 more sources

Path integration in place cells of developing rats

Proceedings of the National Academy of Sciences of the United States of America, 2018
Significance The mammalian brain has neurons that specifically represent the animal’s location in the environment. Place cells in the hippocampus encode position, whereas grid cells in the medial entorhinal cortex, one synapse away, also express ...
Edvard I Moser, May-Britt Moser, Moser May-Britt   +2 more
exaly   +2 more sources

Place cells on a maze encode routes rather than destinations [PDF]

eLife, 2016
Hippocampal place cells fire at different rates when a rodent runs through a given location on its way to different destinations. However, it is unclear whether such firing represents the animal’s intended destination or the execution of a specific ...
Roddy M. Grieves, E. Wood, P. Dudchenko
semanticscholar   +2 more sources

A place for place cells in post-stroke cognitive impairment. [PDF]

Trends Neurosci
In a recent study, Heiser et al. showed that hippocampal place cell stability and spatial encoding were disrupted in mice after brain-wide microstrokes. These findings suggest that hippocampal neurons are particularly vulnerable to dysfunction after stroke, even in the absence of local lesions.
Chapman AC.
europepmc   +3 more sources