Dear Mina,
you should use:
* spm_dcm_voi to specify new regions (from VOI files)
* spm_dcm_U to specify new inputs (from SPM.mat)
into a DCM model.
See the help of these two functions for more details.
All the best,
Guillaume.
Mina Khoshnejad wrote:
> Hello all,
>
> I was doing the folloing procedure to save some time for the DCM
> analysis for multiple sessions and subjects. Just wanted to make sure if
> it is alright:
>
> 1- I specify my VOIs and SPM.mat separately for each subject.
>
> 2- I did the model specification and model estimation only for subject 1
>
> (call it: DCM_m1.mat).
>
> 3- I copy the DCM_m1.mat to directory of other subjects
>
> 4- I used this command:
>
> spm_dcm_voi('DCM_m1.mat',{'VOI1.mat','VOI2.mat','VOI3.mat','VOI4.mat'})
>
> And I assumed that it it will auatomatically assign my model to the VOIs
> of the other subjects and the onsets (spm.mat).
>
> Am I right in thinking so?
>
> 5- I estimate the DCM_m1 that supposedly has been updated for the new
> subjects!
>
> Many thanks for your comments in advance.
>
> Mina
--
Guillaume Flandin, PhD
Wellcome Trust Centre for Neuroimaging
University College London
12 Queen Square
London WC1N 3BG
|