MEG math documentation

✉️ Mailing List Archive (read-only)
1

Hello,

Does anyone know of a comprehensive document that explains all of the math
one uses to go from raw data to source localized data? Such a document
would include maxfilter equations (SSS, tSSS, maxmove, etc), all of the
computational geometry that's done on the structural files, and the fwd/inv
equations. I know the MNE manual has some of these equations scattered
throughout, but is there any other resource?

-Dan Howarth
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2

Hello Dan,

there is the big Matti H?m?l?inen et al. MNE paper, written by the original authors of the MNE package. It contains everything there is to know about source localization:

http://journals.aps.org/rmp/abstract/10.1103/RevModPhys.65.413

it doesn?t contain the maxfilter equations though.

3

Hi Dan,

regarding SSS, Samu Taulu's work includes a lot of math:

Taulu, S. & Kajola, M., 2005. Presentation of electromagnetic multichannel data: The signal space separation method. Journal of Applied Physics, 97(124905), pp.1?10.

Best regards,
Anja

4

Hi,

there is the big Matti H?m?l?inen et al. MNE paper, written by the original authors of the MNE package. It contains everything there is to know about source localization:

Rev. Mod. Phys. 65, 413 (1993) - Magnetoencephalography---theory, instrumentation, and applications to noninvasive studies of the working human brain

this paper is great but it will not give you all the details about the
MNE solver
that is currently implemented in 2016. I fear the materials are indeed a bit
scattered.

The best we can do with little time is to add all the relevant refs in
the Notes and References
sections of the function docstrings.

See eg:

http://martinos.org/mne/dev/generated/mne.preprocessing.maxwell_filter.html#mne.preprocessing.maxwell_filter

But for example in :

http://martinos.org/mne/dev/generated/mne.minimum_norm.make_inverse_operator.html#mne.minimum_norm.make_inverse_operator

we could do better.

any volunteer?

Best,
Alex