Dear All
I am studying on DCM for
ERP , for this , I use EEG dataset and I extract ERP information from it which
for each subject, leads to a 83*129*275 matrix ,where 83 indicates number of
trials , 129 indicates the number of channels and 275 is number of samples in
each trial. The database is visual memory
rather than auditory.
In our EEG dataset we also have the electrode
locations in Cartesian x, y, z coordinates, and the polar coordinate system as well .
I wonder if SPM toolbox
in 3Dsource part, could give any information regarding to identification of the
active regions on the brain Such as coordinates of the DCM requires in the
electromagnetic model part. If yes, what is the algorithm which enable SPM to
get to the source information by using channel information?
How can I load my own
dataset in SPM? , so far I couldn’t do it at all in any part of SPM, I mean
neither in 3Dsource part and nor in DCM (load data) part.
best regard
vafa89