364 results found
    1. Neuroscience

    Glutamate is required for depression but not potentiation of long-term presynaptic function

    Zahid Padamsey et al.
    Electrophysiological and optical analysis of neurotransmitter release at central synapses reveals that glutamate signalling is not required for the long-term potentiation (LTP) of presynaptic function, and instead only promotes presynaptic long-term depression (LTD).
    1. Computational and Systems Biology
    2. Neuroscience

    Temporal pattern and synergy influence activity of ERK signaling pathways during L-LTP induction

    Nadiatou T Miningou Zobon et al.
    ERK activation during induction of long-term synaptic plasticity is enhanced by synergistic interactions among signaling pathways mediated by the synaptically located GTPase-activating protein, and each pathway contributes to different ERK temporal dynamics.
    1. Neuroscience

    Dendritic spikes in hippocampal granule cells are necessary for long-term potentiation at the perforant path synapse

    Sooyun Kim et al.
    A novel mechanism of local plasticity in the distal dendrites of hippocampal granule cells.
    1. Neuroscience

    Repeated social defeat stress enhances glutamatergic synaptic plasticity in the VTA and cocaine place conditioning

    Claire E Stelly et al.
    Enhanced glutamatergic synaptic plasticity in mesolimbic dopaminergic neurons may contribute to repeatedly stressed rats becoming more vulnerable to addiction.
    1. Neuroscience

    UBE3A-mediated p18/LAMTOR1 ubiquitination and degradation regulate mTORC1 activity and synaptic plasticity

    Jiandong Sun et al.
    A new mechanism linking lysosomes to mTOR regulation and synaptic plasticity involves p18 ubiquitination by Ube3a, and underlies some of the pathology observed in Angelman syndrome.
    1. Neuroscience

    Translational control by eIF2α phosphorylation regulates vulnerability to the synaptic and behavioral effects of cocaine

    Wei Huang et al.
    Vulnerability to cocaine addiction during adolescence depends on translational control.
    1. Computational and Systems Biology
    2. Neuroscience

    Fast and flexible sequence induction in spiking neural networks via rapid excitability changes

    Rich Pang, Adrienne L Fairhall
    Biologically plausible changes in the excitabilities of single neurons may suffice to selectively modulate sequential network dynamics, without modifying of recurrent connectivity.
    1. Neuroscience

    Dendritic sodium spikes are required for long-term potentiation at distal synapses on hippocampal pyramidal neurons

    Yujin Kim et al.
    At distal synapses onto hippocampal CA1 pyramidal neurons, synaptic plasticity is dependent on dendritically initiated sodium spikes, thus establishing a new role for voltage-gated sodium channels in the dendrites that may have important implications for how learning rules are implemented.
    1. Neuroscience

    eIF2α-mediated translational control regulates the persistence of cocaine-induced LTP in midbrain dopamine neurons

    Andon N Placzek et al.
    Building on previous work (Huang et al., 2016), we show that translational control by p-eIF2α is a defense mechanism that prevents persistent cocaine-induced synaptic synaptic potentiation underlying compulsive drug seeking.
    1. Neuroscience

    Group III metabotropic glutamate receptors gate long-term potentiation and synaptic tagging/capture in rat hippocampal area CA2

    Ananya Dasgupta et al.
    Group III metabotropic glutamate receptor inhibition facilitates synaptic plasticity in the plasticity-resistant synapses of hippocampal area CA2, a brain region critical for social memory.

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