907 results found
    1. Neuroscience

    Homeostatic regulation through strengthening of neuronal network-correlated synaptic inputs

    Samuel J Barnes, Georg B Keller, Tara Keck
    Following sensory deprivation in adult mice, homeostatic synaptic strengthening occurs in non-sensory network responsive synapses, but not in sensory responsive synapses, despite homeostatic increases to the global sensory-evoked responses.
    1. Neuroscience

    Maintenance of homeostatic plasticity at the Drosophila neuromuscular synapse requires continuous IP3-directed signaling

    Thomas D James, Danielle J Zwiefelhofer, C Andrew Frank
    Synapses employ distinct acute and chronic signaling processes in order to maintain physiologically appropriate levels of function.
    1. Neuroscience

    Homeostatic synaptic depression is achieved through a regulated decrease in presynaptic calcium channel abundance

    Michael A Gaviño, Kevin J Ford ... Graeme W Davis
    Experiments at synapses between nerve and muscle cells in genetically modified fruit flies reveal how neurons compensate for perturbations that would otherwise cause excessive synaptic transmission.
    1. Neuroscience

    Homeostatic synaptic normalization optimizes learning in network models of neural population codes

    Jonathan Mayzel, Elad Schneidman
    An accurate and efficient biologically plausible statistical model of the spiking activity of neural populations shows computational benefits of homeostatic synaptic scaling in learning large neural population codes.
    1. Neuroscience

    Synaptic up-scaling preserves motor circuit output after chronic, natural inactivity

    Joseph M Santin, Mauricio Vallejo, Lynn K Hartzler
    Synaptic scaling maintains motor output from the respiratory network of bullfrogs after months of inactivity in the winter, providing evidence for homeostatic plasticity in response to large ecologically relevant perturbations in neuronal activity.
    1. Neuroscience

    Molecular mechanisms that stabilize short term synaptic plasticity during presynaptic homeostatic plasticity

    Jennifer M Ortega, Özgür Genç, Graeme W Davis
    Genetic and electrophysiological experiments define how homeostatic signaling stabilizes both the gain and short-term dynamic properties of neurotransmitter release, ensuring that synaptic information transfer remains robust to external perturbation.
    1. Neuroscience

    MCTP is an ER-resident calcium sensor that stabilizes synaptic transmission and homeostatic plasticity

    Özgür Genç, Dion K Dickman ... Graeme W Davis
    MCTP is a novel presynaptic calcium sensor, resident within the endoplasmic reticulum, that is required for normal baseline neurotransmission, short-term synaptic plasticity and presynaptic homeostatic plasticity.
    1. Cell Biology
    2. Neuroscience

    A novel synaptic plasticity rule explains homeostasis of neuromuscular transmission

    Gilles Ouanounou, Gérard Baux, Thierry Bal
    Skeletal muscle cells constantly monitor their own activity and that of their partner neuron at synapses, enabling them to provide the neuron with feedback regarding neurotransmitter release.
    1. Neuroscience

    Learning excitatory-inhibitory neuronal assemblies in recurrent networks

    Owen Mackwood, Laura B Naumann, Henning Sprekeler
    The synaptic structure in mouse V1 is explained by a synergy of homeostatic plasticity in incoming and outgoing synapses of inhibitory interneurons, establishing a stimulus-specific balance of excitation and inhibition.
    1. Neuroscience

    Spontaneous neurotransmission signals through store-driven Ca2+ transients to maintain synaptic homeostasis

    Austin L Reese, Ege T Kavalali
    Individual neurons can adjust the strength of their synapses by using spontaneous calcium influx through NMDA receptors to trigger the release of additional calcium from intracellular stores, which can in turn be used to regulate protein synthesis.

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