brain electrical grids and computing grids: a perfect match mike x cohen
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Brain electrical grids and computing grids: A perfect match Mike X Cohen](https://reader036.vdocuments.us/reader036/viewer/2022062517/56813b70550346895da47a1d/html5/thumbnails/1.jpg)
Brain electrical grids and computing grids:A perfect match
Mike X Cohen
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The brain
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GREEN
The behavior
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Brain electrical activity
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Cutting-edge EEG recording technology
256 electrodes1 kHz sampling
~5 GB/hour
![Page 6: Brain electrical grids and computing grids: A perfect match Mike X Cohen](https://reader036.vdocuments.us/reader036/viewer/2022062517/56813b70550346895da47a1d/html5/thumbnails/6.jpg)
Mag
nitu
de
(a)
Phas
e an
gle
(q)
real
*real
imag.m
q
a
Data dimension explosion
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21437174
Beamforming for source localization
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Data dimensions:
1) Space (spherical or 3D)2) Time3) Frequency (power vs. phase)4) Experiment condition5) Connectivity6) Subjects
Why we need computational power
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Example of typical results
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It gets worse:Anatomical connectivity is also important.
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Voxels
Voxe
ls
EEG connectivity matrix
Voxels
Voxe
ls
DTI connectivity matrix
EEG single-trial power MNE conflict effect Seeded tractography
Linking anatomical and functional connectivity
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The problem:
Brain data analyses involve many repeated transformations of very large
data matrices.
Standard computers cannot handle these analyses without annoying interventions.
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The solution:
A scalable, dynamic, and remotely accessible grid of processors.
![Page 14: Brain electrical grids and computing grids: A perfect match Mike X Cohen](https://reader036.vdocuments.us/reader036/viewer/2022062517/56813b70550346895da47a1d/html5/thumbnails/14.jpg)
*Note: open to collaborations starting in 2013!