Results 31 to 40 of about 2,280,368 (270)

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

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

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

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

Hippocampal Global Remapping Can Occur without Input from the Medial Entorhinal Cortex. [PDF]

open access: yes, 2018
The high storage capacity of the episodic memory system relies on distinct representations for events that are separated in time and space. The spatial component of these computations includes the formation of independent maps by hippocampal place cells ...
Boublil, Brittney L   +4 more
core   +2 more sources

Ecology of endolithic lichens colonizing granite in continental Antarctica [PDF]

open access: yes, 2005
In this study, the symbiont cells of several endolithic lichens colonizing granite in continental Antarctica and the relationships they have with the abiotic environment were analyzed in situ, in order to characterize the microecosystems integrating ...
Ascaso, Carmen   +4 more
core   +2 more sources

Neural Representation of Overlapping Path Segments and Reward Acquisitions in the Monkey Hippocampus

open access: yesFrontiers in Systems Neuroscience, 2019
Disambiguation of overlapping events is thought to be the hallmark of episodic memory. Recent rodent studies have reported that when navigating overlapping path segments in the different routes place cell activity in the same overlapping path segments ...
Rafael Vieira Bretas   +7 more
doaj   +1 more source

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