Dear experts,
I am trying to understand the structure of my 1st level posterior covariance (GCM.Cp of each subject) following a spectral DCM analysis.
In total, I have 13 nodes (hence 169 parameters). I would have expected that the posterior covariance matrix of each subject should be 13X13, but instead it is 169X169. I am confused and was wondering why this might be the case. I hope you can help.
Best,
Lavinia U.
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