I am working on  fMRI data from 5-6 year old  children. I wanted to use a pediatric template for normalization. I downloaded the 4.5–8.5 y.o (prepuberty) NIHPD template from (http://nist.mni.mcgill.ca/?p=974). Thereafter, I converted the files to .nii format. Visualization of nii files reveal perfectly ffine images (Attached is the template).​​​​​​​​​​​​​​​​​​​​​​​​​​​​

I am using old segment in SPM12. I enter the subject data T1 image (Data) and tissue probability maps from the template (grey matter, white matter and csf ). Once I run segment the  output files c1 (grey matter), c2 (white matter) and c3 (csf) are empty. The segmentation fails giving me null images.

Does anyone know why this happens?

What tissue probability maps should I use for segmentation (old segment) in  pediatric population? Then how do I use the output in normalization?

Please let me know if anyone has faced the same issue before. 

Thanks
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