288 results found
    1. Neuroscience

    Apical length governs computational diversity of layer 5 pyramidal neurons

    Alessandro R Galloni et al.
    Layer 5 pyramidal neurons vary substantially in dendritic excitability between primary and secondary visual cortex, likely due to a counterintuitive amplifying effect of long apical dendrites.
    1. Neuroscience

    Kv1.1 contributes to a rapid homeostatic plasticity of intrinsic excitability in CA1 pyramidal neurons in vivo

    Peter James Morgan et al.
    Short, theta-bursts of action potential firing decrease the global excitability of CA1 pyramidal neurons, providing an internal mechanism which could regulate their allocation to memory engrams.
    1. Neuroscience

    Alterations of specific cortical GABAergic circuits underlie abnormal network activity in a mouse model of Down syndrome

    Javier Zorrilla de San Martin et al.
    Distinct intrinsic excitability and synaptic dysfunctions in specific cortical inhibitory circuits lead to abnormal network activity in a mouse model of Down syndrome.
    1. Neuroscience

    Mutant huntingtin enhances activation of dendritic Kv4 K+ channels in striatal spiny projection neurons

    Luis Carrillo-Reid et al.
    In mouse models of Huntington's disease, striatal spiny projection neurons up-regulate dendritic potassium channels, which impairs their normal function, but a zinc finger gene therapy can reverse this deficit.
    1. Cell Biology
    2. Neuroscience

    Cell-type-specific regulation of neuronal intrinsic excitability by macroautophagy

    Ori J Lieberman et al.
    In addition to its classic role in synaptic function and plasticity, macroautophagy regulates neuronal intrinsic excitability via degradation of acetylated Kir2 channels to control neurotransmission.
    1. Neuroscience

    Sonic hedgehog signaling in astrocytes mediates cell type-specific synaptic organization

    Steven A Hill et al.
    Astrocytes modulate synaptic remodeling of developing circuits in a cell type-specific manner, with long lasting deficits in synaptic plasticity.
    1. Neuroscience

    Silent synapses generate sparse and orthogonal action potential firing in adult-born hippocampal granule cells

    Liyi Li et al.
    Young neurons of the adult hippocampus are synaptically activated by a small group of non-overlapping afferent excitatory fibers, due to high synaptic gain and sparse connectivity, important for sparse and orthogonal coding during hippocampal information processing.
    1. Computational and Systems Biology
    2. Neuroscience

    T2N as a new tool for robust electrophysiological modeling demonstrated for mature and adult-born dentate granule cells

    Marcel Beining et al.
    T2N, a novel interface between Matlab, TREES toolbox and NEURON, was used to generate compartmental models that reproduce the electrophysiology of dentate granule cells over a multitude of species, experimental conditions and developmental stages.
    1. Neuroscience

    Dendritic Na+ spikes enable cortical input to drive action potential output from hippocampal CA2 pyramidal neurons

    Qian Sun et al.
    In the hippocampus, dendritic Na + spikes are required for signals from the entorhinal cortex to drive action potentials in CA2-but not CA1 or CA3-pyramidal neurons.
    1. Neuroscience

    RIM is essential for stimulated but not spontaneous somatodendritic dopamine release in the midbrain

    Brooks G Robinson et al.
    Midbrain dopamine neurons use sophisticated secretory machinery to establish specialized sites for action potential-evoked release of dopamine from their cell bodies and dendrites.

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