762 results found
    1. Neuroscience

    Analogue closed-loop optogenetic modulation of hippocampal pyramidal cells dissociates gamma frequency and amplitude

    Elizabeth Nicholson, Dmitry A Kuzmin ... Dimitri Michael Kullmann
    Neurons can synchronize, supporting flexible communication among brain areas; closed-loop optogenetics allows the frequency and power of population oscillations to be dissociated, providing a tool to interrogate how networks couple.
    1. Neuroscience

    Coding of latent variables in sensory, parietal, and frontal cortices during closed-loop virtual navigation

    Jean-Paul Noel, Edoardo Balzani ... Dora E Angelaki
    Primates use their eyes to keep track of spatial goals, and this strategy is reflected by the functional connectivity between a traditionally considered optic flow area (dorsomedial superior temporal area) and prefrontal cortex.
    1. Neuroscience

    Perception as a closed-loop convergence process

    Ehud Ahissar, Eldad Assa
    Perception is proposed to be a dynamic motor-sensory closed-loop process in which information flows through the environment and the brain in continuous loops, converging towards steady-state percepts.
    1. Computational and Systems Biology
    2. Neuroscience

    Disrupting abnormal neuronal oscillations with adaptive delayed feedback control

    Domingos Leite de Castro, Miguel Aroso ... Paulo Aguiar
    Adaptive delayed feedback control is presented as a new real-time, closed-loop control algorithm for neurostimulation which can disrupt oscillations and reduce network synchrony in neuronal populations.
    1. Neuroscience

    Interactions between circuit architecture and plasticity in a closed-loop cerebellar system

    Hannah L Payne, Jennifer L Raymond, Mark S Goldman
    A comprehensive modeling approach reconciles experimental observations with classic plasticity mechanisms in the cerebellar cortex, demonstrating how learning-related changes in neural activity can appear to contradict the sign of the underlying plasticity when feedback is present.
    1. Neuroscience

    Closed-loop neuromodulation restores network connectivity and motor control after spinal cord injury

    Patrick D Ganzer, Michael J Darrow ... Robert L Rennaker II
    Precisely-timed bursts of closed-loop vagus nerve stimulation during rehabilitation restore neural connectivity and substantially improve recovery of motor function after SCI.
    1. Computational and Systems Biology
    2. Neuroscience

    A hardware system for real-time decoding of in vivo calcium imaging data

    Zhe Chen, Garrett J Blair ... Hugh T Blair
    DeCalciOn is a low-cost open-source hardware system for real-time in vivo calcium imaging that offers capabilities for online decoding of neural population activity and delivery of short latency closed-loop feedback in freely behaving animals.
    1. Neuroscience

    Enhancement of encoding and retrieval functions through theta phase-specific manipulation of hippocampus

    Joshua H Siegle, Matthew A Wilson
    The ability of mice to encode new memories or retrieve existing ones can be selectively manipulated by using optogenetics to inhibit hippocampal activity at specific phases of the theta cycle.
    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. Structural Biology and Molecular Biophysics

    Distinctive mechanisms of epilepsy-causing mutants discovered by measuring S4 movement in KCNQ2 channels

    Michaela A Edmond, Andy Hinojo-Perez ... Rene Barro-Soria
    Because voltage-gated KCNQ2 channels are central to physiological and pathophysiological events, understanding how disease-causing mutations in different channel regions disrupt function will help future development of mutation-specific antiepileptic therapies.

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