213 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tuning site-specific dynamics to drive allosteric activation in a pneumococcal zinc uptake regulator

    Daiana A Capdevila et al.
    Internal dynamics play a crucial functional role in MarR (multiple antibiotic resistance repressor) proteins and their role reconciles the distinct allosteric mechanisms proposed previously.
    1. Neuroscience

    Theta-modulation drives the emergence of connectivity patterns underlying replay in a network model of place cells

    Panagiota Theodoni et al.
    The learning rate for novel spatial environments in model networks of place cells is determined by the product of the window for plasticity and the auto-correlation of place-cell activity.
    1. Neuroscience

    Analogue closed-loop optogenetic modulation of hippocampal pyramidal cells dissociates gamma frequency and amplitude

    Elizabeth Nicholson et al.
    Neurons can synchronize, supporting flexible communication among brain areas; closed-loop optogenetics allows the frequency and power of population oscillations to be dissociated, providing a tool to interrogate how networks couple.
    1. Neuroscience

    Real-time classification of experience-related ensemble spiking patterns for closed-loop applications

    Davide Ciliberti et al.
    A brain–computer interface for real-time identification of transient neural activity patterns enables causal inference of the role of these patterns in cognition through closed-loop manipulation.
    1. Neuroscience

    GABA, not BOLD, reveals dissociable learning-dependent plasticity mechanisms in the human brain

    Polytimi Frangou et al.
    Combining GABA with fMRI measurements in the human brain uncovers distinct suppression mechanisms that optimize perceptual decisions through learning and experience-dependent plasticity in the visual cortex.
    1. Neuroscience

    Dopamine maintains network synchrony via direct modulation of gap junctions in the crustacean cardiac ganglion

    Brian J Lane et al.
    Dopamine is able to ensure that neural networks maintain critical features of their output, such as synchrony of neuron firing, by directly increasing coupling strength to ensure robust output is maintained.
    1. Evolutionary Biology

    Decoupled maternal and zygotic genetic effects shape the evolution of development

    Christina Zakas et al.
    Early development involves both maternal and zygotic genetic effects. This dual genetic basis shapes the evolution of developmental mode in a marine annelid.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Non-invasive measurement of mRNA decay reveals translation initiation as the major determinant of mRNA stability

    Leon Y Chan et al.
    Non-invasive mRNA stability measurements reveal that transcript lifetime is governed by a competition with translation initiation on a transcriptome-wide level.
    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.

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