134 results found
    1. Neuroscience

    Glucocorticoid receptor-mediated amygdalar metaplasticity underlies adaptive modulation of fear memory by stress

    Ran Inoue et al.
    Behavioral analyses and an optogenetic approach reveal an existence of GR-mediated metaplasticity in the LA and its link with adaptive fear response to auditory cues in a stressful condition.
    1. Neuroscience

    The integration of Gaussian noise by long-range amygdala inputs in frontal circuit promotes fear learning in mice

    Mattia Aime et al.
    The frontal associative cortex promotes fear learning by non-linearly integrating Gaussian noise in between conditioning trials with the help of basolateral amygdala inputs.
    1. Neuroscience

    A robust activity marking system for exploring active neuronal ensembles

    Andreas T Sørensen et al.
    A new system for tagging activated neuronal population offers multiple advantages over existing systems based on immediate early genes, including greater sensitivity and specificity, and suitability for easy application in species other than mice.
    1. Neuroscience

    Axon TRAP reveals learning-associated alterations in cortical axonal mRNAs in the lateral amygdala

    Linnaea E Ostroff et al.
    A diverse assortment of mRNAs are present in projection axons in the adult forebrain and their translation is associated with new memory formation.
    1. Neuroscience

    Stimulus salience determines defensive behaviors elicited by aversively conditioned serial compound auditory stimuli

    Sarah Hersman et al.
    Perceived imminence of threat and resulting intensity of defensive responses during serial compound stimulus conditioning are determined by auditory stimulus salience, not cue sequence as recently reported.
    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

    Midbrain dopamine neurons compute inferred and cached value prediction errors in a common framework

    Brian F Sadacca et al.
    Midbrain dopamine neurons in rats signal discrepancies between predicted and actual rewards, regardless of whether the rewards are predicted on the basis of experience or inference.
    1. Neuroscience

    The AMPA receptor-associated protein Shisa7 regulates hippocampal synaptic function and contextual memory

    Leanne J M Schmitz et al.
    Shisa7 is a bona-fide AMPAR modulatory protein affecting channel kinetics of hippocampal AMPARs, and is necessary for synaptic plasticity and memory recall.
    1. Neuroscience

    Conditional deletion of glucocorticoid receptors in rat brain results in sex-specific deficits in fear and coping behaviors

    Jessie R Scheimann et al.
    Development of a conditional glucocorticoid receptor knockdown rat model allows for high resolution anatomical, physiological and behavioral exploration into the role of glucocorticoid receptor signaling in defined cell populations.
    1. Neuroscience

    Dissociable control of unconditioned responses and associative fear learning by parabrachial CGRP neurons

    Anna J Bowen et al.
    Parabrachial neurons expressing CGRP relay affective components of ascending pain information via distinct thalamic and amygdalar pathways, which together contribute to complementary aspects of adaptive threat responses.

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