1,287 results found
    1. Neuroscience

    A dynamic clamp protocol to artificially modify cell capacitance

    Paul Pfeiffer, Federico José Barreda Tomás ... Susanne Schreiber
    Via the capacitance clamp, electrophysiologists can for the first time flexibly set an artificial membrane capacitance for neurons and other excitable cells and thereby adjust their membrane time constant independent of any conductance changes.
    1. Neuroscience

    Clusters of cooperative ion channels enable a membrane-potential-based mechanism for short-term memory

    Paul Pfeiffer, Alexei V Egorov ... Susanne Schreiber
    Independently gating ion channels typically act fast within milliseconds, but cooperative interactions within a cluster of channels allow for a memory of previous electrical activity for several seconds.
    1. Structural Biology and Molecular Biophysics

    cryo-EM structures of the E. coli replicative DNA polymerase reveal its dynamic interactions with the DNA sliding clamp, exonuclease and τ

    Rafael Fernandez-Leiro, Julian Conrad ... Meindert H Lamers
    Structures of the replicative DNA polymerase Pol IIIα, the DNA sliding clamp, the proofreading exonuclease, and the processivity switch Tau (τ) suggest a mechanism for quick release during lagging strand synthesis.
    1. Neuroscience

    Implications of variable synaptic weights for rate and temporal coding of cerebellar outputs

    Shuting Wu, Asem Wardak ... Wade G Regehr
    Purkinje cell inputs onto cerebellar nuclei (CbN) neurons have highly variable strengths, which allow them to influence CbN firing in a graded manner, with the largest individual inputs effectively regulating both the rate and spike timing of CbN neuron firing.
    1. Computational and Systems Biology
    2. Neuroscience

    Nonlinearities between inhibition and T-type calcium channel activity bidirectionally regulate thalamic oscillations

    Adam C Lu, Christine Kyuyoung Lee ... Mark P Beenhakker
    A multi-scale integration of experimental and computational approaches shows how a non-linear dependence of T-type calcium channel gating on GABAB receptor activity regulates thalamic network oscillations.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Self-restoration of cardiac excitation rhythm by anti-arrhythmic ion channel gating

    Rupamanjari Majumder, Tim De Coster ... Daniël A Pijnappels
    Customization of ion channel gating enhances homeostatic regulation through automatic detection and correction of abnormal physiological changes, as illustrated by self-restoration of excitation rhythm in cardiac arrhythmias.
    1. Neuroscience

    Reciprocally inhibitory circuits operating with distinct mechanisms are differently robust to perturbation and modulation

    Ekaterina Morozova, Peter Newstein, Eve Marder
    Nuanced changes in the mechanism of oscillation in reciprocally inhibitory circuits can profoundly alter the circuit stability in response to perturbations and inputs.
    1. Neuroscience

    Hidden synaptic differences in a neural circuit underlie differential behavioral susceptibility to a neural injury

    Akira Sakurai, Arianna N Tamvacakis, Paul S Katz
    Animal-to-animal variability in neural circuit elements is often hidden under normal conditions, but becomes functionally relevant when the system is challenged by injury.
    1. Neuroscience

    Criticality and degeneracy in injury-induced changes in primary afferent excitability and the implications for neuropathic pain

    Stéphanie Ratté, Yi Zhu ... Steven A Prescott
    No single molecular change is uniquely necessary to cause neuropathic changes in primary afferent excitability; multiple different changes are sufficient.
    1. Neuroscience

    Glycinergic axonal inhibition subserves acute spatial sensitivity to sudden increases in sound intensity

    Tom P Franken, Brian J Bondy ... Philip X Joris
    The location of impact sounds, common stimuli whose detection is crucial for survival, is encoded by a precise interaction between excitation and inhibition rather than coincidence detection of excitatory events.

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