1,041 results found
    1. Neuroscience

    Control of adaptive action selection by secondary motor cortex during flexible visual categorization

    Tian-Yi Wang et al.
    The secondary motor cortex causally contributes to flexible action selection during stimulus categorization with the representations of upcoming choice and sensory history regulated by the demand to remap stimulus–action association.
    1. Cell Biology
    2. Neuroscience

    Speed and segmentation control mechanisms characterized in rhythmically-active circuits created from spinal neurons produced from genetically-tagged embryonic stem cells

    Matthew J Sternfeld et al.
    Stem cell derived ventral-spinal cord excitatory neurons self-assemble into a rhythmically bursting neural network whose speed and intercellular coordination are both instructively modulated by cell-type specific interactions with inhibitory neurons.
    1. Neuroscience

    Cognitive regulation alters social and dietary choice by changing attribute representations in domain-general and domain-specific brain circuits

    Anita Tusche, Cendri A Hutcherson
    Regulatory success operates by goal-consistent increases and decreases of distinct attribute representations in generic neural hubs and in domain-specific brain regions, explaining when and why regulatory success generalizes across domains and contexts.
    1. Neuroscience

    Canonical goal-selective representations are absent from prefrontal cortex in a spatial working memory task requiring behavioral flexibility

    Claudia Böhm, Albert K Lee
    Representation of goals in the forms previously reported in the PFC is not required for performance of a novel spatial working memory task where goal information must be used flexibly.
    1. Neuroscience

    Circuits that encode and guide alcohol-associated preference

    Kristin M Scaplen et al.
    Alcohol modifies dopaminergic microcircuits required for acquisition and expression of sensory memories in Drosophila resulting in a shift in behavioral response from malleable to inflexible.
    1. Neuroscience

    Activity patterns of serotonin neurons underlying cognitive flexibility

    Sara Matias et al.
    Recordings from serotonin-producing neurons in the brain reveal that these neurons are highly activated by sudden changes in previously familiar environments, potentially explaining why serotonin is important for learning to adapt to such changes.
    1. Neuroscience

    Neural Circuits: Turning away from danger

    Jun Liu, Monika Scholz
    The flexible escape behavior exhibited by C. elegans in response to threats relies on a combination of feedback and feedforward circuits.
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    1. Neuroscience

    Regulation of two motor patterns enables the gradual adjustment of locomotion strategy in Caenorhabditis elegans

    Ingrid Hums et al.
    Peptidergic neurons regulate undulation and turning movements to enable Caenorhabditis elegans to gradually adjust its locomotion strategy from dispersal to local search.
    1. Physics of Living Systems

    A physical model describing the interaction of nuclear transport receptors with FG nucleoporin domain assemblies

    Raphael Zahn et al.
    A homopolymer-sphere model is shown to accurately reproduce the interactions that underpin selective gating of macromolecular transport into and out of the cell nucleus.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei et al.
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.

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