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  • Nov
    29

    Victor Barranca: Reconstruction of Neuronal Network Connectivity and Rivalrous Percepts Via Compressive Sensing of Network Dynamics

    McCormick-Engineering Sciences and Applied Mathematics (ESAM)

    11:15 AM M416 and online at https://northwestern.zoom.us/j/96091762215, Technological Institute

    EVENT DETAILS

    Title: Reconstruction of Neuronal Network Connectivity and Rivalrous Percepts Via Compressive Sensing of Network Dynamics

    Speaker: Victor Barranca, Associate Professor of Mathematics, Swarthmore College

    Abstract: Neuronal network connectivity demonstrates sparsity on multiple spatial scales and natural stimuli also possess sparse representations in numerous domains. In this talk, we underline the role of sparsity in the efficient encoding of network connectivity and inputs through nonlinear neuronal network dynamics. Addressing the fundamental challenge of recovering the structural connectivity of large-scale neuronal networks, we leverage properties of the balanced dynamical regime and compressive sensing theory to develop a theoretical framework for efficiently reconstructing sparse network connections through measurements of the network response to a relatively small ensemble of random stimuli. We further utilize sparse recovery ideas to probe the neural correlates of binocular rivalry through dynamic percept reconstructions based on the activity of a two-layer network model with competing downstream pools driven by disparate image stimuli. The resultant model dynamics agree with key experimental observations and give insights into the excitation/inhibition hypothesis for autism.

    **Please note, this event will be held in-person, as well as online via Zoom at the following link: https://northwestern.zoom.us/j/96091762215

    Special Note: This colloquium is on Tuesday at 11:15am, the new regular time for the applied math colloquium.

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    TIME Tuesday, November 29, 2022 at 11:15 AM - 12:15 PM

    LOCATION M416 and online at https://northwestern.zoom.us/j/96091762215, Technological Institute    map it

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    CONTACT Ted Shaeffer    ted.shaeffer@northwestern.edu EMAIL

    CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  • Jun
    10

    Northwestern Engineering PhD Hooding and Master's Degree Recognition Ceremony

    McCormick School of Engineering and Applied Science

    9:00 AM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 9:00 AM - 11:00 AM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Jun
    10

    Northwestern Engineering Undergraduate Convocation

    McCormick School of Engineering and Applied Science

    2:00 PM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 2:00 PM - 4:00 PM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Aug
    14

    Undergraduate Quantum Summer School

    McCormick School of Engineering and Applied Science

    All Day Ford Motor Company Engineering Design Center

    EVENT DETAILSmore info

    TIME Wednesday, August 14, 2024

    LOCATION Ford Motor Company Engineering Design Center    map it

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    CONTACT Dongyang Li    lidongyang@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Aug
    15

    Undergraduate Quantum Summer School

    McCormick School of Engineering and Applied Science

    All Day Ford Motor Company Engineering Design Center

    EVENT DETAILSmore info

    TIME Thursday, August 15, 2024

    LOCATION Ford Motor Company Engineering Design Center    map it

    ADD TO CALENDAR

    CONTACT Dongyang Li    lidongyang@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science