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    1. Neuroscience

    Selection of distinct populations of dentate granule cells in response to inputs as a mechanism for pattern separation in mice

    Wei Deng et al.
    By using different groups of cells to represent distinct environments and events, the dentate gyrus of the hippocampus helps to keep memories of similar events separate.
    1. Neuroscience

    Effects of dopamine on reinforcement learning and consolidation in Parkinson’s disease

    John P Grogan et al.
    Memory over 24 hours was impaired in Parkinson's patients off, rather than on, dopaminergic medication during reinforcement learning, whereas dopamine did not affect positive and negative reinforcement, in contrast to previous studies.
    1. Neuroscience

    Synaptic plasticity and cognitive function are disrupted in the absence of Lrp4

    Andrea M Gomez et al.
    Lrp4 mutant mice display profound deficits in cognitive tasks that assess learning and memory with disruptions in the subcellular organization of synaptic inputs and synaptic plasticity in the hippocampus.
    1. Neuroscience

    Intrinsically regulated learning is modulated by synaptic dopamine signaling

    Pablo Ripollés et al.
    Dopamine modulates behavioral measures of learning and pleasantness in a learning task guided by intrinsic reward, inducing long-term memory benefits specially in those participants with a high sensitivity to reward.
    1. Neuroscience

    Intrinsic monitoring of learning success facilitates memory encoding via the activation of the SN/VTA-Hippocampal loop

    Pablo Ripollés et al.
    Self-motivated learning in the absence of external feedback can recruit the same brain network as reward-driven learning.
    1. Neuroscience

    Coincident postsynaptic activity gates presynaptic dopamine release to induce plasticity in Drosophila mushroom bodies

    Kohei Ueno et al.
    Presynaptic dopamine release is restricted to postsynaptic targets that have been coincidently activated.
    1. Neuroscience

    VTA neurons coordinate with the hippocampal reactivation of spatial experience

    Stephen N Gomperts et al.
    During quiet wakefulness but not slow wave sleep, reward modulated VTA neurons coordinate selectively with hippocampal replay sequences and are biased in their timing towards the reactivated representation of reward locations.
    1. Cell Biology
    2. Neuroscience

    Neuron-wide RNA transport combines with netrin-mediated local translation to spatially regulate the synaptic proteome

    Sangmok Kim, Kelsey C Martin
    The spatial regulation of gene expression within neurons occurs primarily at the level of local translation rather than by stimulus-induced RNA targeting from nucleus to synapse.
    1. Neuroscience

    Learning the specific quality of taste reinforcement in larval Drosophila

    Michael Schleyer et al.
    The finding that fly maggots, equipped with only 10,000 neurons, process reinforcement not only by value but also by specific quality reveals a basic operating principle of brains and challenges current models of memory organization.
    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.