Estimating whole brain dynamics using spectral clustering

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• Yi Yu (University of Cambridge; University of Bristol)
• Thursday 25 August 2016, 10:00-10:40
• Seminar Room 1, Newton Institute.

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SNAW02 - Network science and its applications

The estimation of time-varying networks for functional Magnetic Resonance Imaging (fMRI) data sets is of increasing importance and interest. In this work, we formulate the problem in a high-dimensional time series framework and introduce a data-driven method, namely Network Change Points Detection (NCPD), which detects change points in the network structure of a multivariate time series, with each component of the time series represented by a node in the network. NCPD is applied to various simulated data and a resting-state fMRI data set. This new methodology also allows us to identify common functional states within and across subjects. Finally, NCPD promises to offer a deep insight into the large-scale characterisations and dynamics of the brain.  This is joint work with Ivor Cribben (Alberta School of Business).

This talk is part of the Isaac Newton Institute Seminar Series series.

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