150 results found
    1. Neuroscience

    The functional organization of excitation and inhibition in the dendrites of mouse direction-selective ganglion cells

    Varsha Jain, Benjamin L Murphy-Baum ... Gautam Bhagwan Awatramani
    Accurate direction-selective information is present within small sections of the dendrites, raising the possibility that single dendrites utilize parallel processing schemes to process motion information.
    1. Neuroscience

    Spatially displaced excitation contributes to the encoding of interrupted motion by a retinal direction-selective circuit

    Jennifer Ding, Albert Chen ... Wei Wei
    The direction-selective circuit in the retina adjusts the contributions of excitatory and inhibitory mechanisms under different stimulus conditions to generate context-dependent neural representations of visual features.
    1. Neuroscience

    Preserving inhibition with a disinhibitory microcircuit in the retina

    Qiang Chen, Robert G Smith ... Wei Wei
    A disinhibitory motif in the retina mediates noise resilience of motion detection using an inverted algorithm of disinhibition due to the interplay between network activity and synaptic plasticity.
    1. Neuroscience

    Formation of retinal direction-selective circuitry initiated by starburst amacrine cell homotypic contact

    Thomas A Ray, Suva Roy ... Jeremy N Kay
    Selective synapse formation in a retinal motion-sensitive circuit is orchestrated by starburst amacrine cells, which use homotypic interactions to initiate formation of a dendritic scaffold that recruits projections from circuit partners.
    1. Developmental Biology
    2. Neuroscience

    Protocadherin-dependent dendritic self-avoidance regulates neural connectivity and circuit function

    Dimitar Kostadinov, Joshua R Sanes
    Patterning of dendrites by protocadherin-dependent self-avoidance and self/non-self discrimination is required for proper function of a retinal circuit that computes the direction of motion.
    1. Neuroscience

    Stimulus-dependent recruitment of lateral inhibition underlies retinal direction selectivity

    Qiang Chen, Zhe Pei ... Wei Wei
    Synapse-specific genetic manipulations show that distinct GABAergic inputs are differentially recruited to encode motion direction in the retina in a stimulus-dependent manner.
    1. Neuroscience

    A projection specific logic to sampling visual inputs in mouse superior colliculus

    Katja Reinhard, Chen Li ... Karl Farrow
    Transsynaptic viral tracing reveals that neurons in the superior colliculus employ projection specific rules to the sampling of retinal inputs, directing distinct visual features to different downstream targets.
    1. Neuroscience

    Retinotectal circuitry of larval zebrafish is adapted to detection and pursuit of prey

    Dominique Förster, Thomas O Helmbrecht ... Herwig Baier
    The retinotectal map in zebrafish exhibits location-specific, functional specializations to match prey object movement in the visual field during the hunting sequence.
    1. Neuroscience

    Retinal direction selectivity in the absence of asymmetric starburst amacrine cell responses

    Laura Hanson, Santhosh Sethuramanujam ... Gautam B Awatramani
    Experimental and computational models reveal how parallel 'core' mechanisms shape direction selectivity at the dendrites of starburst amacrine cells and ganglion cells in the mouse retina.
    1. Neuroscience

    Local processing in neurites of VGluT3-expressing amacrine cells differentially organizes visual information

    Jen-Chun Hsiang, Keith P Johnson ... Daniel Kerschensteiner
    Neurite arbors of VGluT3-expressing amacrine cells (VG3-ACs) process visual information locally uniformly detecting object motion while varying in contrast preferences; and in spite of extensive overlap between arbors of neighboring cells population activity in the VG3-AC plexus encodes stimulus positions with subcellular precision.

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