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    1. Neuroscience

    Spatiotemporal patterns of neocortical activity around hippocampal sharp-wave ripples

    J Karimi Abadchi et al.
    The hippocampus and neocortex engage in waves of mutual excitation wherein a sharp wave-ripple may occur at any time before, during or after the peak of the hippocampal-neocortical activation.
    1. Neuroscience

    Presynaptic GABAB receptors functionally uncouple somatostatin interneurons from the active hippocampal network

    Sam A Booker et al.
    Presynaptic GABAB receptors are highly expressed and strongly suppress synaptic transmission at the input and output of hippocampal somatostatin interneurons.
    1. Neuroscience

    Altered hippocampal-prefrontal communication during anxiety-related avoidance in mice deficient for the autism-associated gene Pogz

    Margaret M Cunniff et al.
    In POGZ heterozygous mice, reduced anxiety-related avoidance is associated with decreased feedforward inhibition and theta synchrony in the hippocampal-prefrontal pathway.
    1. Neuroscience

    During hippocampal inactivation, grid cells maintain synchrony, even when the grid pattern is lost

    Noam Almog et al.
    Grid cells lose their hexagonality during hippocampal inactivation, but maintain temporal and spatial synchrony between pairs of cells, implying that hippocampus does not determine phase relations between grid cells.
    1. Neuroscience

    Distinct hippocampal-cortical memory representations for experiences associated with movement versus immobility

    Jai Y Yu et al.
    During awake Sharp wave-ripple memory reactivation, hippocampal-cortical representations for movement- versus immobility-associated experiences are reactivated separately.
    1. Neuroscience

    Preparation for upcoming attentional states in the hippocampus and medial prefrontal cortex

    Eren Günseli, Mariam Aly
    Memory guides attention by enabling preparation for upcoming states in the hippocampus and medial prefrontal cortex.
    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

    State-dependent brainstem ensemble dynamics and their interactions with hippocampus across sleep states

    Tomomi Tsunematsu et al.
    Sub-second pontine waves functionally interact with hippocampal population activity in a state-dependent manner across sleep states, while brainstem ensemble dynamics exhibit slow, long-lasting state-predictive activity.
    1. Neuroscience

    A map of abstract relational knowledge in the human hippocampal–entorhinal cortex

    Mona M Garvert et al.
    Map-like organisations of relational knowledge can be extracted from the hippocampal-entorhinal system in situations where relationships are non-spatial rather than spatial, discrete rather than continuous, and unavailable to conscious awareness.
    1. Neuroscience

    Dreaming with hippocampal damage

    Goffredina Spanò et al.
    A provoked awakening protocol during sleep reveals that selective bilateral hippocampal damage in humans is associated with reduced frequency, quality, and content of dreaming.