Results 41 to 50 of about 17,689,950 (324)

Intracellular Dynamics of Virtual Place Cells [PDF]

open access: yesNeural Computation, 2011
The pattern of spikes recorded from place cells in the rodent hippocampus is strongly modulated by both the spatial location in the environment and the theta rhythm. The phases of the spikes in the theta cycle advance during movement through the place field.
Romani, Sandro   +2 more
openaire   +2 more sources

Differential Impact of Acute and Chronic Stress on CA1 Spatial Coding and Gamma Oscillations

open access: yesFrontiers in Behavioral Neuroscience, 2021
Chronic and acute stress differentially affect behavior as well as the structural integrity of the hippocampus, a key brain region involved in cognition and memory.
Anupratap Tomar   +2 more
doaj   +1 more source

Parallel and convergent processing in grid cell, head-direction cell, boundary cell, and place cell networks. [PDF]

open access: yes, 2013
The brain is able to construct internal representations that correspond to external spatial coordinates. Such brain maps of the external spatial topography may support a number of cognitive functions, including navigation and memory.
Brandon, Mark P   +2 more
core   +2 more sources

Neuromorphic Place Cells

open access: yes, 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 ...
Chen, Zhaoqi, Etienne-Cummings, Ralph
openaire   +2 more sources

Comparing Mouse and Rat Hippocampal Place Cell Activities and Firing Sequences in the Same Environments

open access: yesFrontiers in Cellular Neuroscience, 2018
Hippocampal place cells are key to spatial representation and spatial memory processing. They fire at specific locations in a space (place fields) and fire in precise patterns during theta sequences and during ripple-associated replay events.
Xiang Mou   +6 more
doaj   +1 more source

Navigation in a Space With Moving Objects: Rats Can Avoid Specific Locations Defined With Respect to a Moving Robot

open access: yesFrontiers in Behavioral Neuroscience, 2020
Animals can organize their behavior with respect to other moving animals or objects; when hunting or escaping a predator, when migrating in groups or during various social interactions.
Nikhil Ahuja   +4 more
doaj   +1 more source

Theta-modulated place-by-direction cells in the hippocampal formation in the rat [PDF]

open access: yes, 2004
We report the spatial and temporal properties of a class of cells termed theta-modulated place-by-direction (TPD) cells recorded from the presubicular and parasubicular cortices of the rat. The firing characteristics of TPD cells in open-field enclosures
Burgess, N   +4 more
core   +1 more source

Graded remapping of hippocampal ensembles under sensory conflicts

open access: yesCell Reports, 2021
Summary: Hippocampal place cells are thought to constitute a cognitive map of space derived from multimodal sensory inputs. Alteration of allocentric (visual) cues in a fixed environment is known to induce modulations of place cell activity to varying ...
Dustin Fetterhoff   +2 more
doaj   +1 more source

Hippocampal place cells: stereotypy and plasticity [PDF]

open access: yesThe Journal of Neuroscience, 1989
Hippocampal complex spike cells were recorded during exploration for water delivered to cups located in various regions of an elevated platform. Place fields were recorded with a video monitoring system that recorded movements as the animal explored each of the 5 cup locations where water was delivered on the platform.
C R, Breese   +2 more
openaire   +2 more sources

Brain inspired path planning algorithms for drones

open access: yesFrontiers in Neurorobotics, 2023
IntroductionWith the development of artificial intelligence and brain science, brain-inspired navigation and path planning has attracted widespread attention.MethodsIn this paper, we present a place cell based path planning algorithm that utilizes ...
Yixun Chao   +5 more
doaj   +1 more source

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