Dear all. - what are the .erdf files??????how can I extract them????????I* have some problems in running the SPM???I don`t know what is the error mean?????* *this error is:* *??? Undefined variable "xX" or class "xX.erdf".Error in ==> spm_getSPM at 555df = [xCon(Ic(1)).eidf xX.erdf];Error in ==> spm_results_ui at 263 [SPM,xSPM] = spm_getSPM; ??? Error while evaluating uicontrol Callbackand for define VOI in the resting state which files do I need??( except time series)could you please help me?????I`m a amateur user!!!!!!Best Regards*