Hello,

We are analyzing data using DCM in SPM8. We have encountered a situation where the BMS output consists of more than 1 model (3-4 models out of 5 possible models) in Occam's window. The posterior probabilities of these models are not so high (~0.3). More so, sometimes 2 models receive the exact same probability. What is the winning model in such case? Is it likely to have such low probabilities? Also, in such a case, which model is the mEP calculated on?

Thank you,

Tamar