[FieldTrip] EEG source reconstruction using fieldtrip (MRI not available)

[Ying Li]

Hi Johanna,

That is exactly what I want! Appreciate your help so much! : )

Best,

Ying


On Sun, May 18, 2014 at 1:35 AM, Johanna Zumer <johanna.zumer at gmail.com>wrote:

> Dear Ying,
>
> Yes, that is possible (although in an ideal world, one does have the
> subject's real MRI).
>
> You might gain some help from
> http://fieldtrip.fcdonders.nl/example/align_eeg_electrode_positions_to_bem_headmodel
>   or http://fieldtrip.fcdonders.nl/tutorial/headmodel_eeg (which also
> then links you to http://fieldtrip.fcdonders.nl/template/headmodel) for
> the case of using the MNI brain).
>
> Best,
> Johanna
>
>
>
> 2014-05-17 23:23 GMT+01:00 Ying Li <yingli.ucla at gmail.com>:
>
>> Dear all,
>>
>> Fieldtrip provides a great tool of using MRI to do MEG source
>> reconstruction (
>> http://fieldtrip.fcdonders.nl/tutorial/minimumnormestimate). Now I want
>> to do EEG source reconstruction. The EEG cap we used is the standard 10-10
>> system, but the MRI of the subject is not available. I'm thinking to use
>> another person's MRI instead (i.e. the MNI template). Does fieldtrip
>> provide some tools to match the electrode location and the head model from
>> another person?
>>
>> In addition, since MEG sensor positions are always defined relative to
>> the fiducial coils, so we don't need to transform it into CTF coordinate
>> system any more. When doing EEG source reconstruction, is there any extra
>> steps needed? (i.e. transform the EEG sensor to some certain coordinate
>> system, etc.) Thanks a lot!
>>
>> Best,
>>
>> Ying
>>
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>
>
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