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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)

  • Feb
    4

    Science, Art, and the Search for Meaning: Exhibition Opening Conversation with Dario Robleto

    Block Museum of Art

    2:00 PM McCormick Auditorium, Norris University Center

    EVENT DETAILSmore info

    TIME Saturday, February 4, 2023 at 2:00 PM - 3:30 PM

    LOCATION McCormick Auditorium, Norris University Center    map it

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    CONTACT Block Museum of Art    block-museum@northwestern.edu EMAIL

    CALENDAR Block Museum of Art

  • Feb
    7

    Keaton Burns: Solving Partial Differential Equations Exactly Over Polynomials

    McCormick-Engineering Sciences and Applied Mathematics (ESAM)

    11:15 AM M416, Technological Institute

    EVENT DETAILS

    TIME Tuesday, February 7, 2023 at 11:15 AM - 12:15 PM

    LOCATION M416, Technological Institute    map it

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    CONTACT Ted Shaeffer    ted.shaeffer@northwestern.edu EMAIL

    CALENDAR McCormick-Engineering Sciences and Applied Mathematics (ESAM)

  • Feb
    15

    Professional Development Series: Conflict Resolution

    McCormick School of Engineering and Applied Science

    12:00 PM The Hive, Room 2-350, Ford Motor Company Engineering Design Center

    EVENT DETAILS

    TIME Wednesday, February 15, 2023 at 12:00 PM - 1:00 PM

    LOCATION The Hive, Room 2-350, Ford Motor Company Engineering Design Center    map it

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    CONTACT Kimberly Higgins    kimberly.higgins@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Mar
    11

    Winter Classes End

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, March 11, 2023

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Mar
    18

    Spring Break Begins

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, March 18, 2023

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Mar
    24

    Winter Degrees Conferred

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Friday, March 24, 2023

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Mar
    27

    Spring Break Ends

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, March 27, 2023

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar