Dear Vladimir, Thank you a lot! Best regards! -- Haoran LI (MS) Brain Imaging Lab, Research Center for Learning Science, Southeast University 2 Si Pai Lou , Nanjing, 210096, P.R.China At 2011-06-01 16:41:07,[log in to unmask] wrote: Dea Haoran, This is not relevant for ERP. Just use one session per subject. Vladimir Sent using BlackBerry® from Orange From:飞鸟 <[log in to unmask]> Sender:"SPM (Statistical Parametric Mapping)" <[log in to unmask]> Date:Wed, 1 Jun 2011 16:32:38 +0800 To:<[log in to unmask]> ReplyTo:飞鸟 <[log in to unmask]> Subject:[SPM] What does session mean in Bayesian model selection? Dear spm's users, Thanks for your concerning!I have a simple question about session in BMS batch, that is, I don't understand clearly what session means. I do DCM for ERP, and should I specify different sessions per subject? The word session appears in BMS>Data>Subject>Session. Thank you a lot! -- Haoran LI (MS) Brain Imaging Lab, Research Center for Learning Science, Southeast University 2 Si Pai Lou , Nanjing, 210096, P.R.China