Dear Gabor
Thank you very much for your advice.
As you say "24" or "1" seems appropriate for the reference slice, but after some thought and also following advice from more experienced people I have chosen "12" as the reference slice. This is also related to the microtime onset, as you say. I have set the microtime resolution at "24" (because I have 24 slices per scan), and the microtime onset at "12", as these are also recommended values in SPM 8 manual p. 243.
Any comment from you as well as from other experts would be greatly appreciated.
With many thanks,
Kazuhiro Yamada
Physiology, Univ. of Oita Faculty of Medicine
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