321 results found
    1. Neuroscience

    Complex spike synchrony dependent modulation of rat deep cerebellar nuclear activity

    Tianyu Tang, Timothy A Blenkinsop, Eric J Lang
    The importance of synchronous Purkinje cell complex spikes for controlling cerebellar output was investigated by simultaneously recording from cerebellar nuclear cells and arrays of Purkinje cells that synapse onto them.
    1. Neuroscience

    A prefrontal network model operating near steady and oscillatory states links spike desynchronization and synaptic deficits in schizophrenia

    David A Crowe, Andrew Willow ... Bagrat Amirikian
    Cortical network model suggests a mechanism explaining the link between NMDAR synaptic and spike synchrony deficits observed in a pharmacological monkey model of prefrontal network failure in schizophrenia.
    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.
    1. Neuroscience

    Cell and circuit origins of fast network oscillations in the mammalian main olfactory bulb

    Shawn D Burton, Nathaniel N Urban
    Fast network oscillations in the mammalian main olfactory bulb emerge from the dense synchronization of gamma-frequency firing among resonant tufted cells.
    1. Neuroscience

    Peripheral sensory coding through oscillatory synchrony in weakly electric fish

    Christa A Baker, Kevin R Huck, Bruce A Carlson
    Sensory receptors encode stimuli by transiently synchronizing ongoing electrical oscillations, conferring enhanced sensitivity to communication signals produced by large groups of conspecifics.
    1. Neuroscience

    Control of voluntary and optogenetically perturbed locomotion by spike rate and timing of neurons of the mouse cerebellar nuclei

    Rashmi Sarnaik, Indira M Raman
    Stride-related modulated firing by neurons of the cerebellar nuclei is required for smooth execution of practiced locomotion and persists more easily with synchronous than asynchronous Purkinje-mediated inhibition.
    1. Neuroscience

    ‘Fearful-place’ coding in the amygdala-hippocampal network

    Mi-Seon Kong, Eun Joo Kim ... Jeansok J Kim
    By recording simultaneous spike trains from fear-responsive basal amygdala (BA) and place-responsive dorsal hippocampus (dHPC) neurons in rats foraging for food in a risky predatory situation, a novel BA-dHPC circuit coding mechanism for interfacing danger and place information was revealed.
    1. Neuroscience

    Risk of punishment influences discrete and coordinated encoding of reward-guided actions by prefrontal cortex and VTA neurons

    Junchol Park, Bita Moghaddam
    Risk of punishment during reward seeking behavior is associated with a functional "disconnection" of the PFC-VTA circuit due to a transient loss of VTA-driven theta oscillation.
    1. Neuroscience

    Thalamocortical synapses in the cat visual system in vivo are weak and unreliable

    Madineh Sedigh-Sarvestani, Larry A Palmer, Diego Contreras
    A characterization of LGN-V1 synaptic transmission properties demonstrates thalamocortical synapses in vivo are weak and unreliable, but biologically constrained models show they efficiently drive cortex.
    1. Neuroscience

    Ultrafast (400 Hz) network oscillations induced in mouse barrel cortex by optogenetic activation of thalamocortical axons

    Hang Hu, Rachel E Hostetler, Ariel Agmon
    Brief optogenetic stimulation of thalamocortical axons evoked a 400 Hz wavelet, 'ripplet,' in the extracellular field potential in cortical layer 4, together with phase-locked spike bursts in fast-spiking inhibitory interneurons and alternating excitatory and inhibitory synaptic currents in excitatory cells.

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