[FieldTrip] Dipole time course

Rojas, Don Don.Rojas at ucdenver.edu
Fri Mar 18 16:07:33 CET 2011


I'm sure there are many ways to do this, but one way would be to use the template MRI data from SPM8, co-registering your MEG data with it, and then using the fieldtrip functions to do the ECD analysis, either within SPM or directly in fieldtrip. We've done this many times (and with the same MEG system). I'm happy to provide a few code snippets to you if you are interested in this approach.


Don Rojas

On Mar 16, 2011, at 4:26 PM, Mehmet-Akif Coskun wrote:

Dear FieldTrippers;

I recently start using fieldtrip and so please tolerate if these issues are straightforward.

i need to fit dipoles to M50 and M100 component of my ERPs and get the dipole time course (and also i will need the leadfields because i want to project leadfields of one source to another ERP).
I don't have any MR data. All i have is the raw data, config and hsfiles ( I am using a 248 4D MEG system). I have been told that without any MR, i can still do this in fieldtrip.
I tried using ft_dipolefitting and but since i don't have any volume conduction model, it doesnt work.

So i wonder if there are any predefined models. If not, are there any functions to use to create a model from what i have?

Any help will be greatly appreciated and thanks all for your interest
Mehmet _______________________________________________
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