6,170 results found
    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. Biochemistry and Chemical Biology
    2. Cell Biology

    PPP1R15A-mediated dephosphorylation of eIF2α is unaffected by Sephin1 or Guanabenz

    Ana Crespillo-Casado et al.
    The notion that the drug-like small molecule Sephin1 protects against protein misfolding by selectively disrupting a cellular phosphatase is refuted.
    1. Neuroscience

    Lognormal firing rate distribution reveals prominent fluctuation–driven regime in spinal motor networks

    Peter C Petersen, Rune W Berg
    Neuronal participation in generation of motor patterns in the spinal circuits is lognormal, which is an indication of a rich diversity of activity within the mean-driven as well as the fluctuation-driven regimes.
    1. Immunology and Inflammation

    Functionally diverse human T cells recognize non-microbial antigens presented by MR1

    Marco Lepore et al.
    MR1T cells are human polyclonal T cells endowed with diverse effector functions in response to endogenous antigens presented by MHC-class 1-related molecule, MR1.
    1. Cell Biology

    ESCRTs function directly on the lysosome membrane to downregulate ubiquitinated lysosomal membrane proteins

    Lu Zhu et al.
    The lysosome membrane is a new functional location for the ESCRTs in yeast.
    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

    Network-wide reorganization of procedural memory during NREM sleep revealed by fMRI

    Shahabeddin Vahdat et al.
    Non-REM sleep is essential in the restoration of initial motor memory trace and gradual reorganization of newly-learned information underlying human procedural memory consolidation.
    1. Human Biology and Medicine
    2. Neuroscience

    Localization of spontaneous bursting neuronal activity in the preterm human brain with simultaneous EEG-fMRI

    Tomoki Arichi et al.
    Direct measure of neural and hemodynamic activity in the developing human brain shows that the insula is a major source of transient bursting events that are critical for cortical maturation.
    1. Neuroscience

    Chronic lithium treatment elicits its antimanic effects via BDNF-TrkB dependent synaptic downscaling

    Erinn S Gideons et al.
    The antimanic action of lithium requires BDNF-TrkB signaling coupled with enhanced dynamin-dependent endocytosis of AMPARs as a potential mechanism underlying the therapeutic effects.

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