Dear SPMers,
we are working with SPM5 and have a question regarding vdm5-files.
We are using the fieldmap toolbox to create one vdm5-file per subject. But
in our study we have two EPIs per subject. There is only a short break of 4
minutes between the two EPIs.
Is it reasonable to use the same vdm5-file for both EPIs?
We were thinking, as the subjects are moving slightly during the EPI, it
might be appropriate to run a second fieldmap for the second EPI.
What do you think?
Thanks to your help
Sebastian
|