[Mne_analysis] writting raw fif files with mne_ex_read_write_raw

[Ghuman, Avniel (NIH/NIMH) [F]]

Hi Matti,

Good point. What would you suggest if we are using empty room noise to build the noise covariance matrix?

Best Wishes,
Avniel


On 4/21/11 2:42 PM, "Matti Hamalainen" <msh at nmr.mgh.harvard.edu> wrote:


On Apr 21, 2011, at 2:40 PM, sheraz at nmr.mgh.harvard.edu wrote:

Dear All,

In continuation of this current thread I have a question, when we do PCA
we apply projection vector on the leadfield also.

ICA is also spatial filtering, should not ICA spatial vector should also
be applied to the Lead field.


Hi,

If the noise covariance is derived from the ICA-processed data, whitening automatically accounts for the dimension reduction caused by the ICA.

- Matti




---------

Matti Hamalainen, Ph.D.
Athinoula A. Martinos Center for Biomedical Imaging
Massachusetts General Hospital

msh at nmr.mgh.harvard.edu








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