Yes, the green lines are the surface, so if you don't have a surface, you won't see green lines. You should that the volumes "line up". For talairach, this is to mostly make sure that the edges of the brains are about the same place and that the orientations are about the same.

doug

karlkarl wrote:

Hi,

I started to use Freesufer and finished the first step of recon-all. When I checked the talairach transform, the tutorial said there should be green lines which can be turned on or off by clicking the image window and hitting the s key. But it didn't work for me. Is this because the green lines only appear when you finally finish the surface reconstruction? At this point, what details in the target and moveable volums in the tkregester2 images should i pay attention to before moving to the next step?

thanks

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