[Mne_analysis] source localizing frequency bands

[Matti Hamalainen]

On Dec 3, 2009, at 3:35 AM, Pavan Ramkumar wrote:

> Hi Matti,
>
> Thank you for clarifying these issues. I thought I would take this
> opportunity to ask a related question.
>
>>
>> If you are not interested in very low frequencies, I think the empty
>> room highpass could be set to a higher value than 0.1 Hz, e.g., 1  
>> or 2
>> Hz to cut of the prominent low-frequency noise which will  not be in
>> the band of interest anyway.
>>
>
> By corollary, would you recommend filtering the empty room data to  
> very
> low frequencies (< 1 Hz, say) before computing the noise covariance  
> matrix
> if that happens to be the band of interest?

Hi Pavan,

I meant filtering the very low frequencies *out*, i.e., setting the  
pass band to, e.g, 1 -  40 Hz.

- 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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