173 results found
    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

    Theta- and gamma-band oscillatory uncoupling in the macaque hippocampus

    Saman Abbaspoor, Ahmed T Hussin, Kari L Hoffman
    Oscillations that co-occur in hippocampal CA1 during exploration in the rodent are shown to segregate according to exploratory and sleep states in the primate.
    1. Neuroscience

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

    Lu Zhang, John Lee ... Annabelle C Singer
    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

    Different theta frameworks coexist in the rat hippocampus and are coordinated during memory-guided and novelty tasks

    Víctor J López-Madrona, Elena Pérez-Montoyo ... Santiago Canals
    Integration and segregation of information of memory and sensory in the hippocampus could be achieved by the coordination of distinct theta-gamma coding frameworks.
    1. Neuroscience

    Increasing human motor skill acquisition by driving theta–gamma coupling

    Haya Akkad, Joshua Dupont-Hadwen ... Charlotte J Stagg
    Driving theta–gamma activity in the human cortex with non-invasive brain stimulation enhances motor skill acquisition in healthy adults, revealing a potential neuroplastic mechanism that might be harnessed for therapeutic intervention.
    1. Neuroscience

    A causal role for the precuneus in network-wide theta and gamma oscillatory activity during complex memory retrieval

    Melissa Hebscher, Jed A Meltzer, Asaf Gilboa
    Inhibitory noninvasive stimulation to the precuneus disrupts theta and gamma oscillatory coupling between medial temporal lobes and neocortical regions during complex personal memory retrieval.
    1. Neuroscience

    Improving emotional-action control by targeting long-range phase-amplitude neuronal coupling

    Bob Bramson, Hanneke EM den Ouden ... Karin Roelofs
    Non-invasive manipulation of endogenously coupled neural rhythms enhances human control of social-emotional actions.
    1. Neuroscience

    Learning improves decoding of odor identity with phase-referenced oscillations in the olfactory bulb

    Justin Losacco, Daniel Ramirez-Gordillo ... Diego Restrepo
    Tetrode recordings show that the amplitude of gamma oscillations encodes for information on contextual odorant identity when observed at the peak phase of the theta oscillation in the olfactory bulb.
    1. Neuroscience

    Hippocampal theta coordinates memory processing during visual exploration

    James E Kragel, Stephen VanHaerents ... Donna J Bridge
    Eye movements time-locked to retrieval and novelty during learning preferentially occur at distinct phases of hippocampal theta.
    1. Neuroscience

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

    Catherine M Sweeney-Reed, Tino Zaehle ... Alan Richardson-Klavehn
    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.

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