Dear Keith,
If the electrode locations in EEGLAB are just standard locations (e.g.
extended 10-20) you can just assign default electrode locations in
SPM (via 'Prepare') and then you'll have the fiducials as well.
If not, the simplest thing to do would be to export the electrode
locations from EEGLAB to an .sfp file, add the fiducials to that file
and then import it to SPM also via 'Prepare'.
There used to be no such thing as 'ficudials' in EEGLAB. If it's a new
feature perhaps it can be better supported. If you can send me a small
example .set file I'll look how it can be done. For technical reasons,
however, it can only be included in the SPM release next year.
Best,
Vladimir
On Tue, Dec 8, 2009 at 5:12 AM, Keith Lee <[log in to unmask]> wrote:
> Dear SPMers..
> I have '.set' files using EEGLAB. It contains N(electrodes) + 3(fiducial
> point) channels.
> Three fiducial channels did not check at 'Channel in data array' in channel
> location menu of EEGLAB(7.1.4.15b) and have only coordinate values extracted
> from 3D digitizer.
> When I did '3D Source Reconstr' in SPM8 after converting '.set' files as
> SPM8 data, I couldn't select three fiducial channels on Co-register step.
> If I click the Co-register menu, I can select just N channels except three
> fiducial point.
> How can I select these three fiducial point?
> please give your help.
> Thank you.
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