Dear Kevin,
> Karl Friston wrote:
>
> > ...Increasing
> > the smoothing (of the con??? or beta???.img) prior to the 2nd level
> > analysis might improve your sensitivity (e.g. 8mm FWHM).
>
> Let me make sure I understand this.
>
> Do you mean that you would smooth the statistical summary image before
> running the across-subjects analysis, after the con???.img itself had
> already been generated by smoothing the original data?
Yes. This avoids having to re-run the first-level analysis. You would
only need to smooth a little bit at the second level to supplement the
first-level smoothing.
I hope this helps - Karl
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