Results 11 to 20 of about 8,800,807 (297)
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
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Place cells and place navigation [PDF]
Proceedings of the National Academy of Sciences, 1997 The assumption that hippocampal place cells (PCs) form the neural substrate of cognitive maps can be experimentally tested by comparing the effect of experimental interventions on PC activity and place navigation. Conditions that interfere with place navigation (darkness, cholinergic blockade) but leave PC activity unaffected ...
J, Bures +3 more
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Hippocampus Maintains a Coherent Map Under Reward Feature–Landmark Cue Conflict
Frontiers in Neural Circuits, 2022 Animals predominantly use salient visual cues (landmarks) for efficient navigation. When the relative position of the visual cues is altered, the hippocampal population exhibits heterogeneous responses and constructs context-specific spatial maps ...
Indrajith R. Nair +2 more
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‘Fearful-place’ coding in the amygdala-hippocampal network
eLife, 2021 Animals seeking survival needs must be able to assess different locations of threats in their habitat. However, the neural integration of spatial and risk information essential for guiding goal-directed behavior remains poorly understood.
Mi-Seon Kong +6 more
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Rapid learning of predictive maps with STDP and theta phase precession
eLife, 2023 The predictive map hypothesis is a promising candidate principle for hippocampal function. A favoured formalisation of this hypothesis, called the successor representation, proposes that each place cell encodes the expected state occupancy of its target ...
Tom M George +3 more
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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 +2 more
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Mechanisms for Cognitive Impairment in Epilepsy: Moving Beyond Seizures
Frontiers in Neurology, 2022 There has been a major emphasis on defining the role of seizures in the causation of cognitive impairments like memory deficits in epilepsy. Here we focus on an alternative hypothesis behind these deficits, emphasizing the mechanisms of information ...
Mohamed R. Khalife +6 more
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A Spatial Location Representation Method Incorporating Boundary Information
Applied Sciences, 2023 In response to problems concerning the low autonomous localization accuracy of mobile robots in unknown environments and large cumulative errors due to long time running, a spatial location representation method incorporating boundary information (SLRB ...
Hui Jiang, Yukun Zhang
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Cell Reports, 2021 Summary: Despite ongoing experiential change, neural activity maintains remarkable stability. Although this is thought to be mediated by homeostatic plasticity, what aspect of neural activity is conserved and how the flexibility necessary for learning ...
Klara Kaleb +2 more
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Hippocampal place cells encode global location but not connectivity in a complex space.
Curr Biol, 2021 Duvelle É +12 more
europepmc +2 more sources