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Missing planes should not be an issue.

There is likely an image with no data OR all the data is the same. Have you
checked every time point to make sure there is data and the images are
different from each other?

Best Regards,
Donald McLaren, PhD


On Thu, Sep 24, 2015 at 8:17 AM, Liemburg, EJ (med) <[log in to unmask]>
wrote:

> Dear all,
>
>
>
> I am am analyzing first level ASL data in native space. Because the low
> image values of ASL I have already turned of implicit masking and created
> an explicit mask. However, for one subject I still get the error ‘No inmask
> voxels – empty analysis’. I think  I still get this error because a few
> planes do not contain positive values for this subject (although there is a
> brain in the other planes). I tried to solve this by commenting parts of
> the spm_spm file, but did not succeed.
>
>
>
> Can anyone suggest how to estimate the design for this particular subject.
>
>
>
> Regards,
>
>
>
> Edith
>
>
>
> I would prefer not to delete planes from the data, as I will normalize the
> betafiles after the first level and do a group analysis
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