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    1. Neuroscience

    Independent theta phase coding accounts for CA1 population sequences and enables flexible remapping

    Angus Chadwick et al.
    Independent coding without synaptic coordination explains complex sequences of population activity observed during theta states and maximizes the number of distinct environments that can be encoded through population theta sequences.
    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
    2. Physics of Living Systems

    Replay as wavefronts and theta sequences as bump oscillations in a grid cell attractor network

    Louis Kang, Michael R DeWeese
    An experimentally supported model of grid cells naturally enables them to participate in firing sequences that encode rapid trajectories in space.
    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

    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

    Extinction recall of fear memories formed before stress is not affected despite higher theta activity in the amygdala

    Mohammed Mostafizur Rahman et al.
    When the fear-enhancing effects of prior exposure to stress are absent, the expression of fear reflects normal neural activity in the medial prefrontal cortex, not stress-induced hyperactivity in the amygdala.
    1. Neuroscience

    Frontal beta-theta network during REM sleep

    Sujith Vijayan et al.
    Two regions of the frontal lobe – the anterior cingulate cortex and, unexpectedly, the dorsolateral prefrontal cortex – show coordinated rhythmic activity during REM sleep.
    1. Neuroscience

    Thalamic theta phase alignment predicts human memory formation and anterior thalamic cross-frequency coupling

    Catherine M Sweeney-Reed et al.
    Building on previous work (Sweeney-Reed et al., 2014), it is shown that the timing of the theta rhythm of the right anterior thalamic nucleus predicts human memory formation.
    1. Neuroscience

    Computational models of O-LM cells are recruited by low or high theta frequency inputs depending on h-channel distributions

    Vladislav Sekulić, Frances K Skinner
    The contribution of biophysical ion channels to neuron function can be predicted by taking advantage of an ongoing dialogue between model and experiment.
    1. Neuroscience

    Hippocampal theta coordinates memory processing during visual exploration

    James E Kragel et al.
    Eye movements time-locked to retrieval and novelty during learning preferentially occur at distinct phases of hippocampal theta.