Dear fellow FreeSurfers,
I got two small questions, I would be delighted to recieve some guidance on. The first one is for the monkey experts, I want to flatten the full hemispheres of my processed monkey brains, and I got around to cut away the medial wall to exclude those non-cortex areas from the map; where I am stuck now is making "tension relieve" cuts. Mainly my question is, what are the "canonical" cuts people make on monkey brains to flatten them fully (ideally I would like to see them on an inflated monkey hemisphre, but good landmarks would be also very welcome). Second question is about paint-sess/surf-sess. While trying to display my paint-sess created overlays on the inflated surfaces using surf-sess one out of three monkeys (total so far) gives real bad surface maps (they do not match the expected areas of activation from a tkmedit comparison run) and "spams" the surf-sess log with "MRISreadValues: vertex index out of range". If I set -projfrac from 0.5 to 1 I get acceptable maps for this monkey as well and no more errors. So to get to the point, what is the story behind -projfrac and what is it for? I would be really happy to learn more about this variable.
Ahoi & Thanks in Advance Sebastian