Hello Andreas,
I would suspect that these differences are still driven by the high-pass filter change - changes in voxel intensities from this will alter the susan-smoothing behaviour in film.
Kind Regards
Matthew
> Hi Steve,
>
> Thanks for the quick reply.
>
> Earlier posts refer to improvements due to bug fixes etc (e.g. https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1410&L=FSL&P=R150130&1=FSL&9=A&J=on&d=No+Match%3BMatch%3BMatches&z=4) , I posted because I couldn't quite understand how any of the listed fixes in 5.0.7-8 in http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/WhatsNew#anchor1 results in different COPE's (except possibly the highpass filter change???).
>
> Re how much - Cope and copeVar seems to differ quite a bit, with the general pattern that 5.0.8 results in higher COPE but also higher VARCOPE mainly in anterior parts. In other parts 5.0.6 results in higher copes, but nevertheless lower varcopes than 5.0.8.
>
> The broad pattern of differences seem to map quite well onto B0 corrections (e.g., 'unwarping shift map') - which suggests that at least some of it is due to a change in how fieldmap corrections are implemented? (but 'What's new' lists no such change?).
>
> Cheers,
>
> Andreas
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