5,157 results found
    1. Neuroscience

    A neural-level model of spatial memory and imagery

    Andrej Bicanski, Neil Burgess
    The BB model explains spatial cognition in terms of interactions between specific neuronal populations, providing a common computational framework for the human neuropsychological and in vivo animal electrophysiological literatures.
    1. Neuroscience

    Clustered functional domains for curves and corners in cortical area V4

    Rundong Jiang et al.
    Curves and corners are separately encoded by neurons clustered into functional domains in macaque V4.
    1. Neuroscience

    Spatially displaced excitation contributes to the encoding of interrupted motion by a retinal direction-selective circuit

    Jennifer Ding et al.
    The direction-selective circuit in the retina adjusts the contributions of excitatory and inhibitory mechanisms under different stimulus conditions to generate context-dependent neural representations of visual features.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATR/Mec1 prevents lethal meiotic recombination initiation on partially replicated chromosomes in budding yeast

    Hannah G Blitzblau, Andreas Hochwagen
    During meiosis, budding yeast use a checkpoint involving the protein Mec1 to prevent the formation of double-strand breaks in DNA that has not completed replication.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Evolution of multicellularity by collective integration of spatial information

    Enrico Sandro Colizzi et al.
    Selection for undifferentiated multicellularity emerges in an evolutionary cell-based model because a collective of cells performs chemotaxis better than single cells in a noisy environment.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Environment determines evolutionary trajectory in a constrained phenotypic space

    David T Fraebel et al.
    Experimental evolution shows that when selection acts on two traits constrained by a trade-off, the direction of phenotypic evolution depends on the environment.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Asynchrony between virus diversity and antibody selection limits influenza virus evolution

    Dylan H Morris et al.
    Despite the virus' error prone polymerase, influenza virus antigenic evolution is rare, even in previously immune hosts, virus replication occurs before producing new antibodies.
    1. Developmental Biology
    2. Physics of Living Systems

    From local resynchronization to global pattern recovery in the zebrafish segmentation clock

    Koichiro Uriu et al.
    Theory explains how transport of gene expression vortices by cell advection may cause intermingled defective and normal segments along the body axis during resynchronization experiments in the zebrafish segmentation clock.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Adequate immune response ensured by binary IL-2 and graded CD25 expression in a murine transfer model

    Franziska Fuhrmann et al.
    A murine adoptive transfer model shows that binary IL-2 and graded CD25 expression tailor the T helper cell response to the antigen amount in vivo.
    1. Cell Biology

    Cortical dynein pulling mechanism is regulated by differentially targeted attachment molecule Num1

    Safia Omer et al.
    Dynein-dependent microtubule-cortex interactions – "side-on" versus "end-on" pulling – are regulated by cortical ER and mediated by distinct pools of cortical anchor that are differentially localized along the cell periphery.

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