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