[Freesurfer] incongruent coordinates in freeview and *sig.cluster.summary

Hi all, I have done group analysis and see it in freeview. Also I can see my sig.cluster.summary file to find clusters those survived. As I know, the MNIX MNIY MNIZ in the cluster summary file is coordinates for the maximum. The coordinate system is MNI305. Also I input the vertex number at the maximum in freeview, but it echo different coordinate for the vertex from that in cluster summary file. Why? Another question. There is "RAS" symbol at the bottom of freeview window. However I see the coordinates : inferior, posterior, left is negtive, superior, anterior,and right is positive. I suspect the coordinate system is LPI. Is that right? Thanks. All the best. Rujing Zha

2014-04-26

charujing123