142 results found
    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. 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.
    1. Neuroscience

    Rhythmic coordination of hippocampal neurons during associative memory processing

    Lara M Rangel et al.
    Different rhythms uniquely contribute to task-related processing in the hippocampus, and changes in the rhythmic profile of the hippocampus reflect dynamic coordination of its cell activity.
    1. Neuroscience

    Sub-second dynamics of theta-gamma coupling in hippocampal CA1

    Lu Zhang et al.
    A combination of signal processing and machine learning form a new approach to classify oscillatory coupling in single cycles without averaging over time and to capture cycle-by-cycle changes in coupling.
    1. Neuroscience

    Shared rhythmic subcortical GABAergic input to the entorhinal cortex and presubiculum

    Tim James Viney et al.
    GABAergic parvalbumin-expressing 'orchid cells' of the medial septum selectively target GABAergic neurons in connected extra-hippocampal areas of the mouse, providing rhythmically bursting inhibitory input at the peak of hippocampal 5-12 Hz theta oscillatory cycles.

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