3,172 results found
    1. Neuroscience
    2. Physics of Living Systems

    A geometric attractor mechanism for self-organization of entorhinal grid modules

    Louis Kang, Vijay Balasubramanian
    The hierarchy of entorhinal grid cell modules with constant scale ratios can self-organize through a new geometrically organized attractor mechanism.
    1. Neuroscience

    Impaired speed encoding and grid cell periodicity in a mouse model of tauopathy

    Thomas Ridler et al.
    Dementia-related tau pathology reduces speed encoding in the medial entorhinal cortex and is associated with reduced grid cell function, whilst head direction tuning remains intact.
    1. Neuroscience

    Velocity coupling of grid cell modules enables stable embedding of a low dimensional variable in a high dimensional neural attractor

    Noga Mosheiff, Yoram Burak
    The neural representation of position in the medial entorhinal cortex may be stabilized by synaptic connectivity across modules, which enforces coherent updates in their states.
    1. Neuroscience

    The self-organization of grid cells in 3D

    Federico Stella, Alessandro Treves
    A computational model for the formation of neural networks of grid cells in virtual bats suggests that the highly ordered networks presumed to support spatial navigation in two dimensions cannot be routinely established in three-dimensional space.
    1. Neuroscience

    A principle of economy predicts the functional architecture of grid cells

    Xue-Xin Wei et al.
    Mathematical modeling suggests that grid cells in the rodent brain use fundamental principles of number theory to maximize the efficiency of spatial mapping, enabling animals to accurately encode their location with as few neurons as possible.
    1. Computational and Systems Biology
    2. Neuroscience

    Noise promotes independent control of gamma oscillations and grid firing within recurrent attractor networks

    Lukas Solanka et al.
    Random fluctuations in neuronal firing may enable a single brain region, the medial entorhinal cortex, to perform distinct roles in cognition (by generating gamma waves) and spatial navigation (by producing a grid cell map).
    1. Neuroscience

    Environmental deformations dynamically shift the grid cell spatial metric

    Alexandra T Keinath et al.
    When a familiar environment is reshaped, the grid cell spatial code is dynamically anchored to recently encountered boundaries and changes throughout exploration with the specific movement history of the navigator.
    1. Neuroscience

    Extracting grid cell characteristics from place cell inputs using non-negative principal component analysis

    Yedidyah Dordek et al.
    Computational modeling of the brain’s navigation system reveals that place cells can drive the formation of hexagonal patterns experimentally observed in grid cells activity.
    1. Epidemiology and Global Health

    Local human movement patterns and land use impact exposure to zoonotic malaria in Malaysian Borneo

    Kimberly M Fornace et al.
    Local human movement into mosquito habitats around forest edges intensifies interactions between pathogens, insects and people, increasing exposure risks to the zoonotic malaria Plasmodium knowlesi in Malaysian Borneo.
    1. Neuroscience

    Learning place cells, grid cells and invariances with excitatory and inhibitory plasticity

    Simon Nikolaus Weber, Henning Sprekeler
    A large variety of spatial representations implied in rodent navigation could arise robustly and rapidly from inputs with a weak spatial structure, by an interaction of excitatory and inhibitory synaptic plasticity.

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