Dear All,

I have the same issue regarding the estimation failure on the attention tutorial. I replaced the old spm_estimate_PPI.m file with the updated patch file but instead I have this error:

VOI has 549 voxels in 3x3x3 space

VOI has 549 voxels in 3x3x3 space. This is in the the same space as the input data and functional mask.
VOI has 549 voxels in 3x3x3 space
VOI has 549 voxels in 3x3x3 space. This is in the the same space as the input data and functional mask.
Estimation Failed
Warning: Missing conditions!!! Invalid Contrast
Invalid Contrast
Warning: Missing conditions!!! Invalid Contrast
Invalid Contrast
PPI Contrasts were not estimated for some reason.

Any idea on how to solve this issue?

Best regards,

Konstantinos