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 ...
Jeffery, KJ
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A computational model of learning flexible navigation in a maze by layout-conforming replay of place cells [PDF]
Frontiers 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
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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 +5 more
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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 +3 more
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Learning place cells, grid cells and invariances with excitatory and inhibitory plasticity [PDF]
eLife, 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
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Learning place cells and remapping by decoding the cognitive map [PDF]
eLifeHippocampal 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 +3 more
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Dynamic gamma modulation of hippocampal place cells predominates development of theta sequences [PDF]
eLifeThe 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
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A memory model of rodent spatial navigation in which place cells are memories arranged in a grid and grid cells are non-spatial [PDF]
eLifeA 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
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Micromachines, 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
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Macrophage morphological plasticity and migration is Rac signalling and MMP9 dependant
Scientific Reports, 2021 In vitro, depending on extracellular matrix (ECM) architecture, macrophages migrate either in amoeboid or mesenchymal mode; while the first is a general trait of leukocytes, the latter is associated with tissue remodelling via Matrix Metalloproteinases ...
Jana Travnickova +6 more
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