545 results found
    1. Neuroscience
    2. Physics of Living Systems

    Replay as wavefronts and theta sequences as bump oscillations in a grid cell attractor network

    Louis Kang, Michael R DeWeese
    An experimentally supported model of grid cells naturally enables them to participate in firing sequences that encode rapid trajectories in space.
    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. Computational and Systems Biology
    2. Neuroscience

    Fundamental bound on the persistence and capacity of short-term memory stored as graded persistent activity

    Onur Ozan Koyluoglu et al.
    A fundamental lower-bound on memory recall precision, which declines with storage duration and number of stored items, is derived, and human performance is shown to be well-fit by this theoretical bound.
    1. Neuroscience

    Immediate perception of a reward is distinct from the reward’s long-term salience

    John P McGinnis et al.
    The experiences that are most rewarding at the time are not necessarily those that are remembered long-term.
    1. Neuroscience

    Task-dependent recurrent dynamics in visual cortex

    Satohiro Tajima et al.
    A decoding-based, state-space reconstruction reveals that neurons in macaque IT cortex change the structure of their collective attractor dynamics depending on task contexts.
    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. Neuroscience

    Spike frequency adaptation supports network computations on temporally dispersed information

    Darjan Salaj et al.
    Spike frequency adaptation provides spiking neural networks with long short-term memory.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Correlated evolution between repertoire size and song plasticity predicts that sexual selection on song promotes open-ended learning

    Cristina M Robinson et al.
    A longer birdsong-learning window evolves in response to sexual selection for song complexity and is associated with faster evolution of song performance characteristics.
    1. Neuroscience

    Temporal chunking as a mechanism for unsupervised learning of task-sets

    Flora Bouchacourt et al.
    Model-based analyses of human behaviour and neural activity show that representations of concurrent task-sets emerge by merging together representations of individual stimulus-response associations that occur in temporal proximity.
    1. Neuroscience

    Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells

    John Widloski et al.
    A novel experimental method and analysis is conceived, based on perturbation and sparse recording, to elucidate the circuit structure and mechanisms underlying the responses of grid cells.

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