Hellio SPM users I have some unclear questions in working with spm. I will thankful if answer me. My question is: 1. what is Z score in result of spm? and what does it mean? Higher z score is better or not? 2. Can I estimate contrast after getting result after process? 3. what is 1st engievaluate? What can I get from spm result? 4. How can I compare 2 images from results? What factors are important in comparing between 2 images?? 5. I want to compare 2 images with their contrast, resolution. Can I do it or not? Your sincerely Fatemeh Shahmardan