Hi SPM experts,
I am working on assessing the spectral DCM with a clinical resting-state fMRI dataset.
I have a strong hypothesis proposing that the connectome among the OFC, Amygdala and hippocampus could explain the pathology of this disorder.
However, the hypothesis did not state the connectivity between left and right regions, which makes me wonder how should I specify the connectivity between them in different hemispheres. Given that the spDCM only needs to specify the matrix A, so I want to ask if it is proper to turn off all between-hemisphere connectivity?
Alternative, could I build two spDCMs separately with all left or right regions, instead of putting them in one DCM?
Best,
Qunjun
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