The problem: I have some areas in MEG I would like to track as "ROI"s. 
To do this, I need labels for those areas which are active clusters. In 
MEG, I can convert an activity map into a .w file, which is the 
"paint" format used for overlays in tksurfer.

So the new problem: I have a .w file, which contains clusters of areas 
which are above a threshold value. I want label files for each cluster.

mri_surfcluster, which seems similar to what I need, does not output 
labels, or anything like it, so far as I can tell.

Does a method exist, or should I invent one?


(an example of this would be: do a vision experiment in MEG. primary 
visual areas will be active, so a blob shows up over there in MEG. If I 
want to see the behavior of that blob vs. time, I need a label. I am 
hoping there exists a way to send the image of the blob (or blobs) from 
MEG to surfer as .w files, and then figure out automatically where 
clusters (blobs) appear, and then create a label file for each one)

Daniel Goldenholz
-----------------------------------------------------
Cell: 617-935-9421      http://people.bu.edu/danielg/

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