194 results found
    1. Neuroscience

    Classical conditioning drives learned reward prediction signals in climbing fibers across the lateral cerebellum

    William Heffley, Court Hull
    Cerebellar climbing fibers can generate learned reward-predictive instructional signals, suggesting a role for cerebellar learning in the reinforcement of reward-driven behaviors.
    1. Neuroscience

    Modular organization of cerebellar climbing fiber inputs during goal-directed behavior

    Shinichiro Tsutsumi et al.
    Motor and non-motor functions are represented in spatially segregated and temporally organized climbing fiber signals to distinct cerebellar zones during goal-directed behavior.
    1. Neuroscience

    Non-synaptic signaling from cerebellar climbing fibers modulates Golgi cell activity

    Angela K Nietz et al.
    Climbing fiber glutamate spillover enhances response complexity and regulates signaling to Golgi cells through a form of transmission not constrained to synapses.
    1. Neuroscience

    AMPA receptor mediated synaptic excitation drives state-dependent bursting in Purkinje neurons of zebrafish larvae

    Mohini Sengupta, Vatsala Thirumalai
    In vivo recordings in unanesthetized zebrafish larvae show that Purkinje neurons have two stable membrane potential states and that climbing fiber inputs can toggle them to up states during motor episodes.
    1. Neuroscience

    Interaction of plasticity and circuit organization during the acquisition of cerebellum-dependent motor learning

    Yan Yang, Stephen G Lisberger
    During learning, one climbing fiber input instructs plasticity that is expressed in the simple-spike responses of cerebellar Purkinje cells, and causes neural learning that may inhibit future climbing fiber instructions.
    1. Neuroscience

    Cerebellar climbing fibers encode expected reward size

    Noga Larry et al.
    Electrophysiological recordings in monkeys reveal that cerebellar complex spikes encode future reward size when reward information is first made available, but not during reward delivery or smooth pursuit eye movement.
    1. Neuroscience

    Behavior: The cerebellum shows its stripes

    Ashley L Holloway, Talia N Lerner
    New studies examine how the different sub-structures in the cerebellum are organized to receive information during complex behavioral tasks.
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    1. Neuroscience

    Gating of neural error signals during motor learning

    Rhea R Kimpo et al.
    Electrode recordings and optogenetics reveal that the cerebellum can modulate its response to error signals from the brainstem during motor learning.
    1. Neuroscience

    Coding of stimulus strength via analog calcium signals in Purkinje cell dendrites of awake mice

    Farzaneh Najafi et al.
    Sensory-driven calcium spikes in Purkinje cells are not binary; instead, they are graded and can provide information about the strength of a periocular airpuff stimulus known to drive learning.
    1. Neuroscience

    Inhibition gates supralinear Ca2+ signaling in Purkinje cell dendrites during practiced movements

    Michael A Gaffield et al.
    In behaving mice, inhibition from molecular layer interneurons attenuates excitation of Purkinje cells by parallel fibers and suppresses their ability to enhance climbing fiber-triggered dendritic Ca2+ responses.

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