dear Chris

I am a neurosurgeon starting to learn VSLM analysis with NiiStat.  
I have 2 questions :
1) predict injured tissue will only cause poorer performance not better performance > Is there a possibility to "predict injured tissue cause better performance not poorer performance ?"
2) the region that survive thresholds are flipped (when it says Right, it is in fact left). I think this is due to the orientation of my lesion's mask. Is there a way to flip the mask horizontally in the script ?

I don't have any coding knowledge (sorry about that)

Thank you very much for your time

Pierre