29 results found
    1. Neuroscience

    Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish

    Alejandro Vélez, Bruce A Carlson
    Building on previous work (Baker et al., 2015), further evidence is reported for a novel mechanism for sensory coding based on the detection of oscillatory synchrony among peripheral receptors.
    1. Evolutionary Biology
    2. Neuroscience

    Convergent mosaic brain evolution is associated with the evolution of novel electrosensory systems in teleost fishes

    Erika L Schumacher, Bruce A Carlson
    In teleost fishes, the independent evolution of electrosensory systems was repeatedly associated with evolutionary changes in brain region scaling that were independent of changes in brain–body allometry.
    1. Neuroscience

    Generalization of learned responses in the mormyrid electrosensory lobe

    Conor Dempsey, LF Abbott, Nathaniel B Sawtell
    In vivo recordings and computational modeling of the electrosensory lobe of mormyrid fish provide a circuit-level description of how learning generalizes to new situations.
    1. Developmental Biology
    2. Neuroscience

    Insights into electrosensory organ development, physiology and evolution from a lateral line-enriched transcriptome

    Melinda S Modrell, Mike Lyne ... Clare VH Baker
    An unbiased transcriptomic approach reveals that developing paddlefish electrosensory organs express genes essential for mechanosensory hair cell development and synaptic transmission, and identifies candidates for mediating electroreceptor development and function.
    1. Developmental Biology

    Opposing roles for Bmp signalling during the development of electrosensory lateral line organs

    Alexander S Campbell, Martin Minařík ... Clare VH Baker
    In sturgeon, fewer electrosensory organs form after targeting Bmp5 for CRISPR/Cas9-mediated mutagenesis, whereas more form after chemically blocking all Bmp signalling shortly before their primordia emerge, suggesting that Bmp signalling has opposing effects during electrosensory organ development.
    1. Computational and Systems Biology
    2. Neuroscience

    Neural correlations enable invariant coding and perception of natural stimuli in weakly electric fish

    Michael G Metzen, Volker Hofmann, Maurice J Chacron
    Neural circuits in weakly electric fish perform a set of computations to allow natural communication signals to be perceived independently of their context.
    1. Neuroscience

    Spatiotemporal interplay between multisensory excitation and recruited inhibition in the lamprey optic tectum

    Andreas A Kardamakis, Juan Pérez-Fernández, Sten Grillner
    Signals conveyed from two different senses from a given point in space converge onto the same neurons of the optic tectum that trigger the gaze-control-system, and at the same time inhibit other parts of the tectal motor map.
    1. Neuroscience

    Stimulus background influences phase invariant coding by correlated neural activity

    Michael G Metzen, Maurice J Chacron
    Building on previous work (Metzen et al., 2016), a combination of neurophysiological and behavioral approaches reveals that changes in the background strongly impacts invariant coding and perception of behaviourally relevant signals.
    1. Neuroscience

    Feedback optimizes neural coding and perception of natural stimuli

    Chengjie G Huang, Michael G Metzen, Maurice J Chacron
    Neurophysiological and behavioral approaches reveal how coordinated input from descending pathways shapes the tuning properties of electrosensory neurons in order to optimize coding of natural stimuli through temporal whitening.

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