4,030 results found
    1. Neuroscience

    Local field potentials reflect cortical population dynamics in a region-specific and frequency-dependent manner

    Cecilia Gallego-Carracedo, Matthew G Perich ... Juan Álvaro Gallego
    There is a frequency-dependent association between the local field potential and the coordinated activity of populations of single neurons, which remains constant during different aspects of behaviour but changes across regions of primate sensorimotor cortex.
    1. Neuroscience

    The aperiodic exponent of subthalamic field potentials reflects excitation/inhibition balance in Parkinsonism

    Christoph Wiest, Flavie Torrecillos ... Huiling Tan
    The slope of the power spectrum of subthalamic local field potentials tracks pathological states in Parkinson’s disease and likely complements beta activity as a feedback marker for adaptive deep brain stimulation.
    1. Computational and Systems Biology
    2. Neuroscience

    Electrocorticography is superior to subthalamic local field potentials for movement decoding in Parkinson’s disease

    Timon Merk, Victoria Peterson ... Wolf-Julian Neumann
    Advanced machine learning based brain signal decoding of grip-force as a proxy for movement vigor shows Parkinson's disease related performance reduction, suggestive of a loss of cortical vigor encoding in the absence of dopamine.
    1. Neuroscience

    Decoding gripping force based on local field potentials recorded from subthalamic nucleus in humans

    Huiling Tan, Alek Pogosyan ... Peter Brown
    Patterns of coordinated activity in the basal ganglia predict how much force we will use to grip objects, suggesting that individuals with paralysis may ultimately be able to use these signals to control graded responses in robotic devices.
    1. Neuroscience

    Mesoscopic-scale functional networks in the primate amygdala

    Jeremiah K Morrow, Michael X Cohen, Katalin M Gothard
    Multivariate data decomposition applied to local field potentials recorded from the primate amygdala revealed simultaneously active and functionally distinct networks, defined by anatomical boundaries between the nuclei.
    1. Neuroscience

    The involvement of the human prefrontal cortex in the emergence of visual awareness

    Zepeng Fang, Yuanyuan Dang ... Mingsha Zhang
    While minimizing the report-related motor confounding, event-related potential (ERP), high-frequency power, and functional connectivity of the local field potential (LFP) activity in human prefrontal cortex were enhanced under the emergence of visual awareness.
    1. Neuroscience

    Dipolar extracellular potentials generated by axonal projections

    Thomas McColgan, Ji Liu ... Richard Kempter
    Action potentials propagating in axon bundles with bifurcating and terminating fibers cause strong and far-reaching extracellular potentials.
    1. Neuroscience

    Differential dopaminergic modulation of spontaneous cortico–subthalamic activity in Parkinson’s disease

    Abhinav Sharma, Diego Vidaurre ... Esther Florin
    Dopaminergic medication has differential effects on the discovered electrophysiological networks, which could be used to develop new electrical and pharmacological interventions in Parkinson’s disease.
    1. Computational and Systems Biology
    2. Neuroscience

    Uncovering circuit mechanisms of current sinks and sources with biophysical simulations of primary visual cortex

    Atle E Rimehaug, Alexander J Stasik ... Anton Arkhipov
    A biophysically detailed model of mouse primary visual cortex reproduces, in a quantitative manner, experimentally recorded spikes and local field potentials, and suggests mechanisms that form current sinks and sources in vivo.
    1. Neuroscience

    Multiplexed coding by cerebellar Purkinje neurons

    Sungho Hong, Mario Negrello ... Erik De Schutter
    Cerebellar Purkinje neurons use a multiplexed simple spike code combining synchrony/spike time and firing rate, with each component encoding distinct information about movements such as motion onset timing and kinematics.

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