1,722 results found
    1. Neuroscience

    Activation of astrocytes in hippocampus decreases fear memory through adenosine A1 receptors

    Yulan Li et al.
    A new strategy of memory consolidation disruption based on astrocyte and purinergic signaling, which leads to persistent fear memory attenuation accompanied by reduced fear-related anxiety behavior.
    1. Neuroscience

    Noradrenergic projections from the locus coeruleus to the amygdala constrain fear memory reconsolidation

    Josué Haubrich et al.
    The overactivation of noradrenergic inputs to the amygdala during severe fear learning increases memory stability at the expense of lability, rendering the trace resistant to memory destabilization and reconsolidation.
    1. Cell Biology

    A microRNA negative feedback loop downregulates vesicle transport and inhibits fear memory

    Rebecca S Mathew et al.
    A fear conditioning-induced miRNA acts in a negative feedback loop that targets vesicle exocytosis and neurotransmitter receptor trafficking, and inhibits memory formation.
    1. Neuroscience

    Ablation of STAT3 in Purkinje cells reorganizes cerebellar synaptic plasticity in long-term fear memory network

    Jeong-Kyu Han et al.
    Cerebellar STAT3 is indispensable for proper expression of fear memory network processing.
    1. Neuroscience

    Hippocampal neurogenesis enhancers promote forgetting of remote fear memory after hippocampal reactivation by retrieval

    Rie Ishikawa et al.
    Forgetting of remote fear memory is promoted by increased hippocampal neurogenesis only after hippocampal reactivation by long time memory retrieval.
    1. Neuroscience

    Defective memory engram reactivation underlies impaired fear memory recall in Fragile X syndrome

    Jie Li et al.
    Activity-dependent genetic labeling during behavioral learning shows Fragile-X syndrome model mice exhibit impaired hippocampal engram reactivation, and that enriched environment experience improves fear memory retrieval by enhancing engram reactivation efficacy.
    1. Neuroscience

    Enhancement of fear memory by retrieval through reconsolidation

    Hotaka Fukushima et al.
    Retrieval enhances fear memory through reconsolidation by activating calcineurin-induced protein degradation and CREB-mediated gene expression in amygdala, hippocampus, and mPFC.
    1. Neuroscience

    Transient acidosis while retrieving a fear-related memory enhances its lability

    Jianyang Du et al.
    Activating ASIC channels in the amygdala makes a single reminder more effective at rendering consolidated fear memories labile and susceptible to modification.
    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

    Shifting from fear to safety through deconditioning-update

    Bruno Popik et al.
    Deconditioning is a safe and efficient new approach to updating traumatic memories, in which fear memory is rewritten to a very low level in a long-lasting way.

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