983 results found
    1. Structural Biology and Molecular Biophysics

    Auto-regulation of Rab5 GEF activity in Rabex5 by allosteric structural changes, catalytic core dynamics and ubiquitin binding

    Janelle Lauer et al.
    Understanding the complex auto-regulatory mechanisms for guanine nucleotide exchange factors is critically important for fully appreciating the layers of control for small GTPases.
    1. Cell Biology
    2. Evolutionary Biology

    Multicellularity: How contraction has shaped evolution

    Mukund Thattai
    Two new unicellular organisms reveal that coordinated contractions of groups of cells using actomyosin predated animal multicellularity during evolution.
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    1. Developmental Biology
    2. Neuroscience

    Shifts in myeloarchitecture characterise adolescent development of cortical gradients

    Casey Paquola et al.
    Layer-specific microstructural changes contribute to the maturation of cortical organisation during adolescence.
    1. Neuroscience

    Structured inhibitory activity dynamics in new virtual environments

    Moises Arriaga, Edward B Han
    Inhibitory interneuron activity is dynamically modulated in new environments while individual interneurons show consistent levels of activity modulation across multiple environments, suggesting functional specialization of inhibitory subnetworks.
    1. Evolutionary Biology

    The Natural History of Model Organisms: Insights into the evolution of social systems and species from baboon studies

    Julia Fischer et al.
    Wild baboons are an excellent model to study complex evolutionary processes such as speciation and hybridization, as well as the links between sociality, longevity and reproductive success.
    1. Neuroscience

    ON selectivity in the Drosophila visual system is a multisynaptic process involving both glutamatergic and GABAergic inhibition

    Sebastian Molina-Obando et al.
    A fundamental visual computation, the establishment of ON selectivity, is established across distributed circuits, allowing for more robust and flexible coding than suggested by core circuit motifs.
    1. Neuroscience

    Dendritic NMDA receptors in parvalbumin neurons enable strong and stable neuronal assemblies

    Jonathan H Cornford et al.
    NMDA receptors on PV+ interneurons mediate supralinear integration at feedback synapses from local pyramidal neurons, enabling competing networks to ‘lock’ onto salient inputs.
    1. Neuroscience

    Dopamine neuron ensembles signal the content of sensory prediction errors

    Thomas A Stalnaker et al.
    Dopamine neurons function as an ensemble to signal a multidimensional feature prediction error.
    1. Developmental Biology
    2. Evolutionary Biology

    An ancestral apical brain region contributes to the central complex under the control of foxQ2 in the beetle Tribolium

    Bicheng He et al.
    An ancestral apical brain center contributed to the evolution of the insect central complex requiring foxQ2, which is essential for the development of midline structures of the insect brain.
    1. Neuroscience

    Differential contributions of the two human cerebral hemispheres to action timing

    Anja Pflug et al.
    Brain imaging reveals frequency-dependent lateralized rhythmic finger tapping control by the auditory cortex with left-lateralized control of relative fast and right-lateralized control of relative slow rhythms.

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