Colorbar values

Hello, 

at the 2nd level analysis I have results thresholded after correcting for multiple comparisons. Can you pls help me with the following questions?

1. When I use the surface display, I call the colorbar and I see the range of values. Are these T or z?
2. When I load the (exported) mask on BrainNet, the range on the colorbar is different. Why?

Thanks a lot!

Athena