> >1) If I've an event related design with TR >= 3 sec and I don't perform
> >slice timing correction and the time and dispersion derivatives are
> >statistical significant, this result could be attributable to
> >the different
> >acquisition time among slices (noise) and it couldn't be
> >attributable to the
> >"bold response" (signal). Is this correct?
>
> Correct, though it is also true for shorter TRs too, and it is only really
> the temporal derivative that is relevant.
I would expand on the above to say that you wouldn't know that it "couldn't
be attributable to the 'bold response'", rather, your first point is the
salient one, that the "result could be attributable to the [slice] timing".
Regards,
Vince
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