5,867 results found
    1. Neuroscience

    Spatial Navigation: A question of scale

    Muireann Irish, Siddharth Ramanan
    An fMRI experiment reveals distinct brain regions that respond in a graded manner as humans process distance information across increasing spatial scales.
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    1. Neuroscience

    Asymmetric ON-OFF processing of visual motion cancels variability induced by the structure of natural scenes

    Juyue Chen et al.
    The fruit fly estimates visual motion by incorporating ON-OFF asymmetric processing that only improves performance when stimuli have light-dark asymmetries matched to natural scenes.
    1. Neuroscience

    Cellular and neurochemical basis of sleep stages in the thalamocortical network

    Giri P Krishnan et al.
    A computational model of the thalamocortical network explains sleep stages by the coordinated variations in the level of neuromodulators and predicts differences of sleep pattern in human, cat and mouse recordings.
    1. Genetics and Genomics

    Variable prediction accuracy of polygenic scores within an ancestry group

    Hakhamanesh Mostafavi et al.
    The prediction accuracies of polygenic scores in humans vary depending on the characteristics of the samples, as well as based on the study design, within a single ancestry group.
    1. Developmental Biology
    2. Genetics and Genomics

    A large-scale resource for tissue-specific CRISPR mutagenesis in Drosophila

    Fillip Port et al.
    A large-scale CRISPR library allows efficient gene disruption with spatial and temporal control in Drosophila.
    1. Neuroscience

    Brain states govern the spatio-temporal dynamics of resting-state functional connectivity

    Felipe Aedo-Jury et al.
    Distinct brain states govern resting state functional architecture revealed by neurophysiologically defined simultaneous optic-fiber-based calcium recordings and task-free functional magnetic resonance imaging (fMRI) in rats.
    1. Neuroscience

    Internal states drive nutrient homeostasis by modulating exploration-exploitation trade-off

    Verónica María Corrales-Carvajal et al.
    A quantitative video tracking analysis reveals that to gain the nutrients they need, flies change their decisions to exploit foods with different nutrient contents and explore the environment according to their internal amino acid and reproductive states.
    1. Ecology
    2. Plant Biology

    Determining the scale at which variation in a single gene changes population yields

    Erica McGale et al.
    Variation in the gene NaMPK4 in plant populations increases reproductive yield, an effect which appears to be independent of soil water availability, neighbor-scale interactions and associations with arbuscular mycorrhizal fungi.
    1. Stem Cells and Regenerative Medicine

    Sox9+ messenger cells orchestrate large-scale skeletal regeneration in the mammalian rib

    Stephanie T Kuwahara et al.
    Large-scale skeletal regeneration requires Hh signaling in Sox9+ lineage cells to coordinate callus formation and bone repair.
    1. Neuroscience

    Processing of different spatial scales in the human brain

    Michael Peer et al.
    When subjects perform spatial judgments in environments of increasing scale, brain activity shifts along posterior-anterior gradients, advancing from the visual system to the default-mode network.

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