177 results found
    1. Neuroscience

    Can sleep protect memories from catastrophic forgetting?

    Oscar C González et al.
    Computational modeling predicts that sleep replay plays a protective role against catastrophic forgetting by revealing synaptic mechanisms allowing overlapping populations of neurons to store multiple interfering memories.
    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

    Single-exposure visual memory judgments are reflected in inferotemporal cortex

    Travis Meyer, Nicole C Rust
    In response to the question "Have you seen this image before?", remembering and forgetting can be accounted for by a weighted linear read-out of memory signals in monkey inferotemporal cortex.
    1. Neuroscience

    Network-wide abnormalities explain memory variability in hippocampal amnesia

    Georgios PD Argyropoulos et al.
    Hippocampal damage is associated with changes across the extended hippocampal system, and these may explain variability in memory between patients presenting with hippocampal amnesia.
    1. Neuroscience

    A saturation hypothesis to explain both enhanced and impaired learning with enhanced plasticity

    TD Barbara Nguyen-Vu et al.
    Learning capacity depends on a dynamic interplay between the brain’s ability to change the strength of its synapses and the history of activity at those synapses.
    1. Computational and Systems Biology
    2. Neuroscience

    Fundamental bound on the persistence and capacity of short-term memory stored as graded persistent activity

    Onur Ozan Koyluoglu et al.
    A fundamental lower-bound on memory recall precision, which declines with storage duration and number of stored items, is derived, and human performance is shown to be well-fit by this theoretical bound.
    1. Neuroscience

    Retrieval practice facilitates memory updating by enhancing and differentiating medial prefrontal cortex representations

    Zhifang Ye et al.
    Retrieval practice strongly engages the medial prefrontal cortex to integrate and differentiate memory representations, resulting in more effective memory updating.
    1. Neuroscience

    Attenuation of dopamine-modulated prefrontal value signals underlies probabilistic reward learning deficits in old age

    Lieke de Boer et al.
    Attenuated anticipatory activity in ventromedial prefrontal cortex is modulated by dopamine D1 receptor density in nucleus accumbens, and accounts for impaired probabilistic reward learning in older adults.
    1. Neuroscience

    Dopaminergic neurons write and update memories with cell-type-specific rules

    Yoshinori Aso, Gerald M Rubin
    Building on previous work (Aso et al., 2014a; Aso et al., 2014b), cell-type-specific drivers and optogenetics are used to control the local release of dopamine and reveal that distinct learning rules are implemented in parallel memory units.
    1. Neuroscience

    Momentary subjective well-being depends on learning and not reward

    Bastien Blain, Robb B Rutledge
    Analyses show that happiness is not associated with the reward prediction errors resulting from decisions but instead with belief updating and learning the structure of the world.

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