9,430 results found
    1. Plant Biology

    Flowering time and seed dormancy control use external coincidence to generate life history strategy

    Vicki Springthorpe, Steven Penfield
    Models of plant behaviour show that flowering early in a warming world is an adaptive strategy to insulate progeny seed behaviour from the affects of climate change.
    1. Ecology
    2. Neuroscience

    Select forelimb muscles have evolved superfast contractile speed to support acrobatic social displays

    Matthew J Fuxjager et al.
    In situ measurements of muscular twitch speed reveal one of the fastest vertebrate limb muscles on record, which evolved in association with extravagant courtship displays that include rapid limb movements.
    1. Plant Biology

    Auxin production in the endosperm drives seed coat development in Arabidopsis

    Duarte D Figueiredo et al.
    Auxin is produced in the endosperm after fertilization and drives the development of the seed coat in Arabidopsis.
    1. Neuroscience

    A neural mechanism of speed-accuracy tradeoff in macaque area LIP

    Timothy Hanks et al.
    To establish a trade-off between the speed and accuracy of a decision, neurons in lateral intraparietal cortex combine evidence bearing on the decision with a signal that incorporates the cost of time into the decision-making process.
    1. Computational and Systems Biology

    Tuning the speed-accuracy trade-off to maximize reward rate in multisensory decision-making

    Jan Drugowitsch et al.
    Building on previous work (Drugowitsch et al., 2014), it is shown that decision-makers adjust their speed-accuracy trade-off flexibly from one moment to the next, based on evidence available from multiple sensory modalities, in order to nearly maximize their reward rate.
    1. Plant Biology

    Non-canonical RNA-directed DNA methylation participates in maternal and environmental control of seed dormancy

    Mayumi Iwasaki et al.
    Seed-specific and cold-induced DNA methylation is deposited in the seed progeny to form a transient and transgenerational memory of past environmental conditions to optimize seed germination timing.
    1. Neuroscience

    Impaired speed encoding and grid cell periodicity in a mouse model of tauopathy

    Thomas Ridler et al.
    Dementia-related tau pathology reduces speed encoding in the medial entorhinal cortex and is associated with reduced grid cell function, whilst head direction tuning remains intact.
    1. Neuroscience

    Thalamic theta phase alignment predicts human memory formation and anterior thalamic cross-frequency coupling

    Catherine M Sweeney-Reed et al.
    Building on previous work (Sweeney-Reed et al., 2014), it is shown that the timing of the theta rhythm of the right anterior thalamic nucleus predicts human memory formation.
    1. Neuroscience

    Distinct mechanisms mediate speed-accuracy adjustments in cortico-subthalamic networks

    Damian M Herz et al.
    Dynamic changes in activity and connectivity of the human subthalamic nucleus reflect whether a decision will be made in haste or with caution.
    1. Neuroscience

    Node of Ranvier length as a potential regulator of myelinated axon conduction speed

    I Lorena Arancibia-Cárcamo et al.
    Node of Ranvier length is similar at successive nodes along single myelinated CNS axons, but differs between axons, and could potentially be tuned to adjust the conduction velocity of each axon.

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