825 results found
    1. Neuroscience

    The role of premature evidence accumulation in making difficult perceptual decisions under temporal uncertainty

    Ciara A Devine et al.
    Temporal uncertainty interferes with the timely onset of evidence accumulation in perceptual decision making prompting the brain to rely instead on statistical regularities in the temporal structure of the environment.
    1. Neuroscience

    Using the past to estimate sensory uncertainty

    Ulrik Beierholm et al.
    For perceptual inference, human observers do not estimate sensory uncertainty instantaneously from the current sensory signals alone, but by combining past and current sensory inputs consistent with a Bayesian learner.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Demographic reconstruction from ancient DNA supports rapid extinction of the great auk

    Jessica E Thomas et al.
    Reconstruction of great auk population dynamics suggests that hunting pressure alone could have been responsible for their extinction, demonstrating that even abundant, widespread species can be vulnerable to intense exploitation.
    1. Neuroscience

    Bed nucleus of the stria terminalis regulates fear to unpredictable threat signals

    Travis D Goode et al.
    The bed nucleus of the stria terminalis (BNST) is required for the expression of defensive behavior to uncertain threats, a function that is central to pathological anxiety.
    1. Neuroscience

    Ventrolateral periaqueductal gray neurons prioritize threat probability over fear output

    Kristina M Wright, Michael A McDannald
    Single-unit activity in the ventrolateral periaqueductal gray, a brain region implicated in organizing fear output, is found to reflect threat probability, a more versatile threat signal.
    1. Neuroscience

    Entrainment and maintenance of an internal metronome in supplementary motor area

    Jaime Cadena-Valencia et al.
    Temporal rhythms are encoded in the supplementary motor area by firing rate oscillations and rhythmic bursts of gamma-band LFP activity.
    1. Neuroscience

    Intraneural stimulation elicits discrimination of textural features by artificial fingertip in intact and amputee humans

    Calogero Maria Oddo et al.
    Delivering specific patterns of electrical activity to the median nerve of the arm triggers reliable sensations of texture, suggesting that it may ultimately be possible to restore complex tactile information to users of prosthetic limbs.
    1. Neuroscience

    The manifold structure of limb coordination in walking Drosophila

    Brian D DeAngelis et al.
    During walking and turning, the fruit fly Drosophila uses variable limb coordination patterns, which exist on a low-dimensional, continuous manifold.
    1. Computational and Systems Biology
    2. Neuroscience

    Training deep neural density estimators to identify mechanistic models of neural dynamics

    Pedro J Gonçalves et al.
    Deep neural networks can be trained to automatically find mechanistic models which quantitatively agree with experimental data, providing new opportunities for building and visualizing interpretable models of neural dynamics.
    1. Neuroscience

    Recurrent processes support a cascade of hierarchical decisions

    Laura Gwilliams, Jean-Remi King
    The dynamics of neural responses during visual perception are best explained by a joint feedforward and recurrent architecture, which both maintains and broadcasts input features over time.

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