Dear Evgeny,
SPM5 also accepts non-integer numbers for onsets in scans, so this is
not an issue at all. Just pick sec or #scans as your unit of time and
express your measures in the proper unit, as a floating point number.
Good luck,
Bas
Evgeny Gutyrchik schreef:
> Hello All,
>
> I have an original [fMRI] block design defined in milliseconds and not
> coordinated with TR. What would be better (advisable / correct):
>
> a) to define the protocol in milliseconds
>
> b) to define the protocol in volumes (scans), always round up to the
> nearest volume
>
> c) to define the protocol in volumes, drop "transitional" volumes
> (overlapping for two adjacent conditions)
>
> ?
>
> Thanks,
> Evgeny
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Dr. S.F.W. Neggers
Division of Brain Research
Rudolf Magnus Institute for Neuroscience
Utrecht University Medical Center
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