Tips Martin Pyka on 03 May 2012 01:35 pm
Changing the starting position of the EM for DCM
When you have already preassumptions with regard to the coupling strength of the neural parameters or the hemodynamic parameters you can start the estimation of a DCM with a certain starting position.
All you have to do is, create a variable DCM.M.P and assign new values to it, e.g:
load dcm_file
DCM.M.P = DCM.M.pE;
% alter DCM.M.P
save dcm_file DCM
The EM-algorithm will begin with the parameters specified in DCM.M.P.