[symbol logo]     University of Sydney
[School of Mathematics and Statistics]
Applied Mathematics Seminar
    
  
 
University of Sydney> Maths & Stats> Research> Applied Mathematics Seminar> Abstracts
    

 
 

Michael Breakspear
School of Psychiatry, University of New South Wales, Black Dog Institute, and The Brain Dynamics Centre

The Multiscale Character of Evoked Cortical Dynamics

Wednesday 30th, August 14:05-14:55pm, Carslaw Lecture Theatre 373.

The architecture and the dynamics of the brain have characteristic features at different spatial scales. However, the existence and function of dynamical interdependencies between such scales have not been previously investigated. In this talk we explicate a novel means of addressing this problem using "wavelet functions" - novel mathematical tools which permit a multiscale representation of spatiotemporal data. We have hence observed strong multiscale effects in the temporal and spatial domains of functional neuroscience (EEG and fMRI) data. We discuss the putative contribution of this "multiscale noise" to the dynamics of distributed neocortical dynamics and the robustness of human information processing.