The ?h.sphere.reg is a "registration surface". It is sort of like having a registration matrix in that the matrix tells you how to map to a common space but does not actually do the mapping for you. If you want to map surface values (eg, thicknesses) to a common space, then use mri_surf2surf (usually with fsaverage as the target). Alternatively, if you are doing a group analysis, you can use mris_preproc, which will run mri_surf2surf for you.
doug
wanlin wrote:
Hello all: After processing cortex reconstruction using Freesurfer, i find that the number of vertices of ?h.sphere.reg for different people is different, How to make sure the point correspondence? the tutorial said that the ?h.sphere.reg file is the results of alignment between subjects and the standard template. If I want to perform hypothesis test for some features on every vertex, How should i do?
thanks
wanlin
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