Results 31 to 40 of about 16,525,519 (328)
Dorsal CA1 Hippocampal Place Cells Form a Multi-Scale Representation of Megaspace
bioRxiv, 2021 Spatially firing “place cells” within the hippocampal CA1 region form internal maps of the environment necessary for navigation and memory. In rodents, these neurons have been almost exclusively studied in small environments (
Bruce Harland +3 more
semanticscholar +1 more source
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
doaj +1 more source
Spatial cognition and the avian hippocampus: Research in domestic chicks
Frontiers in Psychology, 2022 In this review, we discuss the functional equivalence of the avian and mammalian hippocampus, based mostly on our own research in domestic chicks, which provide an important developmental model (most research on spatial cognition in other birds relies on
Anastasia Morandi-Raikova, Uwe Mayer
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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 obviously ...
J, Bures +3 more
openaire +2 more sources
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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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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