Dear SPM community I'm writing for a suggestion. I'm planning a study in which I aimed at using DCM on fMRI resting state of patients with autism from the open ABIDE dataset. However I have a problem in the analysis, which is probably very basic, that you could help to solve. The downloaded data from the dataset are 4D EPI file in Nifti format. Moreover, from what I understand, there is not the movement regressor file, because the data are completely preprocessed. Therefore, since I have only one file and no regressor, I'm not sure how to complete the first step, namely 'fMRI model specification', to obtain the SPM.mat file that I need to use to extract ROI time series to compute the DCM.
What can I do in this case?
Thanks
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