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    1. Neuroscience

    Risk of punishment influences discrete and coordinated encoding of reward-guided actions by prefrontal cortex and VTA neurons

    Junchol Park, Bita Moghaddam
    Risk of punishment during reward seeking behavior is associated with a functional "disconnection" of the PFC-VTA circuit due to a transient loss of VTA-driven theta oscillation.
    1. Neuroscience

    Impaired fast-spiking interneuron function in a genetic mouse model of depression

    Jonas-Frederic Sauer et al.
    Truncated Disrupted-in-schizophrenia 1 (Disc 1) ablates signaling of parvalbumin-expressing interneurons in the prefrontal cortex and underlies depression-related behaviour in mice.
    1. Neuroscience

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

    Justin Losacco et al.
    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. 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

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

    Melissa Hebscher et al.
    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

    Medial entorhinal cortex activates in a traveling wave in the rat

    J Jesús Hernández-Pérez et al.
    The existence of traveling waves in the medial entorhinal cortex, like those observed in the hippocampus, supports the hypothesis that traveling waves coordinate the activity of anatomically distributed circuits.
    1. Neuroscience

    Multiple time-scales of decision-making in the hippocampus and prefrontal cortex

    Wenbo Tang et al.
    Hippocampal and prefrontal neuronal populations form slow behavioral-timescale (~seconds) and fast cognitive-timescale (~100 ms) sequential activity patterns as theta and replay sequences, which play distinct yet cooperative roles in memory-guided decision-making.
    1. Neuroscience

    Increased theta/alpha synchrony in the habenula-prefrontal network with negative emotional stimuli in human patients

    Yongzhi Huang et al.
    Increased theta/alpha band activities within the habenula area and the prefrontal cortex, as well as the increased synchrony between the two structures in the same frequency band can serve as an indicator for negative emotions in humans.
    1. Neuroscience

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

    Víctor J López-Madrona et al.
    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

    Synchronized excitability in a network enables generation of internal neuronal sequences

    Yingxue Wang et al.
    Hippocampal sharp-wave sequences, which are considered the key phenomenon underlying consolidation of episodic memory, are preserved even after an animal’s memory is impaired.