342 results found
    1. Neuroscience

    Temperature compensation in a small rhythmic circuit

    Leandro M Alonso, Eve Marder
    Computational models demonstrate that circuit resilience to temperature perturbations are associated with smooth transitions between cellular mechanisms as the contributions of different currents are altered while activity is maintained.
    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

    A Bayesian and efficient observer model explains concurrent attractive and repulsive history biases in visual perception

    Matthias Fritsche et al.
    Attractive and repulsive history biases in visual perception occur simultaneously, yet over dissociable timescales, and are explained by efficient encoding and Bayesian decoding of visual information in a stable environment.
    1. Biochemistry and Chemical Biology

    CRISPR-Cas12a exploits R-loop asymmetry to form double-strand breaks

    Joshua C Cofsky et al.
    The DNA flanks on either side of an R-loop differ in stability, and CRISPR-Cas12 enzymes form double-strand breaks by targeting the more unstable flank with their single DNase active site.
    1. Neuroscience

    The neurons that mistook a hat for a face

    Michael J Arcaro et al.
    Neuronal recordings reveal complex, heterogeneous inputs to face-selective neurons, suggesting that inferotemporal neurons do not represent objects in isolation, but are also sensitive to object relationships that reflect environmental regularities.
    1. Physics of Living Systems

    Stochastic bond dynamics facilitates alignment of malaria parasite at erythrocyte membrane upon invasion

    Sebastian Hillringhaus et al.
    The bond-based adhesion model is a key step toward a realistic description of RBC-parasite interaction, which allows the investigation of more realistic scenarios and is relevant for other biological systems.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational distributions of isolated myosin motor domains encode their mechanochemical properties

    Justin R Porter et al.
    Shifts in the balance between nucleotide-favorable and nucleotide-unfavorable conformations of myosin motors encode duty ratios and ADP release rates, demonstrating the power of an ensemble perspective for uncovering sequence-function relationships.
    1. Neuroscience

    Principles of operation of a cerebellar learning circuit

    David J Herzfeld et al.
    Quantitative analysis of behavior coupled with computational modeling reveal the set of circuit-level principles that underlie cerebellar-dependent motor learning in smooth pursuit eye movements of monkeys across timescales.
    1. Physics of Living Systems

    Heterogeneous T cell motility behaviors emerge from a coupling between speed and turning in vivo

    Elizabeth R Jerison, Stephen R Quake
    Motile interstitial T cells in live zebrafish access a broad range of length-scales due to long-lived cell-intrinsic variation in speed, and a coupling between speed and directional persistence.
    1. Neuroscience

    Acetylcholine acts on songbird premotor circuitry to invigorate vocal output

    Paul I Jaffe, Michael S Brainard
    The neuromodulator acetylcholine contributes to state-dependent modulation of motor vigor and variability by direct action on songbird premotor cortex, bypassing basal ganglia circuitry.

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