170 results found
    1. Neuroscience

    An image-computable model for the stimulus selectivity of gamma oscillations

    Dora Hermes et al.
    Gamma-band oscillations show striking differences in stimulus selectivity compared to fMRI and broadband field potentials in human visual cortex, and are explained by a novel, image-computable model.
    1. Neuroscience

    CA2 neuronal activity controls hippocampal low gamma and ripple oscillations

    Georgia M Alexander et al.
    Hippocampal area CA2 controls low gamma and ripple oscillations, brain waves known to be impaired in schizophrenia, implicating this important brain region in cognition.
    1. Neuroscience

    Surface color and predictability determine contextual modulation of V1 firing and gamma oscillations

    Alina Peter et al.
    Colored surfaces induce strong gamma-synchronization yet sparse firing in V1 when receptive field inputs are predicted from the surrounding spatial context.
    1. Neuroscience

    TrpV1 receptor activation rescues neuronal function and network gamma oscillations from Aβ-induced impairment in mouse hippocampus in vitro

    Hugo Balleza-Tapia et al.
    TrpV1 receptor activation rescues cognition-relevant network dynamics in mouse hippocampus in an acute Alzheimer disease model providing a novel therapeutic target.
    1. Computational and Systems Biology
    2. Neuroscience

    Speech encoding by coupled cortical theta and gamma oscillations

    Alexandre Hyafil et al.
    Computational modelling shows that coupled theta and gamma oscillations in the auditory cortex can decompose speech into its syllabic constituents, and organize the neural spiking at faster timescale into a decodable format.
    1. Neuroscience

    Movement-related coupling of human subthalamic nucleus spikes to cortical gamma

    Petra Fischer et al.
    When coupling between STN spikes and cortical gamma oscillations was strong, subsequent movement was initiated earlier, independent of changes in mean firing rates, demonstrating the importance of relative spike timing.
    1. Neuroscience

    Quantitative properties of a feedback circuit predict frequency-dependent pattern separation

    Oliver Braganza et al.
    The feedback inhibitory microcircuit of the dentate gyrus likely boosts pattern separation during gamma oscillations.
    1. Computational and Systems Biology
    2. Neuroscience

    Noise promotes independent control of gamma oscillations and grid firing within recurrent attractor networks

    Lukas Solanka et al.
    Random fluctuations in neuronal firing may enable a single brain region, the medial entorhinal cortex, to perform distinct roles in cognition (by generating gamma waves) and spatial navigation (by producing a grid cell map).
    1. Neuroscience

    On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus

    Robson Scheffer-Teixeira, Adriano BL Tort
    Phase-locking of hippocampal theta and gamma waves has been proposed to support memory formation, but an analysis using robust statistical methods finds no convincing evidence for the phenomenon.
    1. Neuroscience

    A quantitative theory of gamma synchronization in macaque V1

    Eric Lowet et al.
    Gamma-band synchronization behavior in area V1 was predicted by weakly coupled oscillator principles.

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