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Brain electrical grids and computing grids: A perfect match Mike X Cohen

Brain electrical grids and computing grids: A perfect match Mike X Cohen. The brain. The behavior. GREEN. Brain electrical activity. Cutting-edge EEG recording technology. 256 electrodes 1 kHz sampling ~5 GB/hour. Data dimension explosion. imag. m. *. a. q. real. real.

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Brain electrical grids and computing grids: A perfect match Mike X Cohen

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  1. Brain electrical grids and computing grids: A perfect match Mike X Cohen

  2. The brain

  3. The behavior GREEN

  4. Brain electrical activity

  5. Cutting-edge EEG recording technology 256 electrodes 1 kHz sampling ~5 GB/hour

  6. Data dimension explosion imag . m * a q real real Magnitude (a) Phase angle (q)

  7. Beamforming for source localization 21437174

  8. Why we need computational power Data dimensions: Space (spherical or 3D) Time Frequency (power vs. phase) Experiment condition Connectivity Subjects

  9. Example of typical results

  10. It gets worse: Anatomical connectivity is also important.

  11. Linking anatomical and functional connectivity Seeded tractography MNE conflict effect EEG single-trial power EEG connectivity matrix DTI connectivity matrix Voxels Voxels Voxels Voxels

  12. The problem: Brain data analyses involve many repeated transformations of very large data matrices. Standard computers cannot handle these analyses without annoying interventions.

  13. The solution: A scalable, dynamic, and remotely accessible grid of processors.

  14. *Note: open to collaborations starting in 2013!

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