[Freesurfer] LGI cluster correction

Dear Freesurfer Team, My group has been working with an lGI dataset for a while now and we were able to successfully complete a Monte Carlo cluster correction in FreeSurfer 4.5. It took a very long time but we did not receive any error messages. Now when we try to perform cluster correct

[Freesurfer] Extracting area.pial stats

Dear FreeSurfer team, I have been looking at area.pial differences in two groups using qdec. I would now like to extract stats for each subject at the gyral level (using the Desikan parcellation). I used aparcstats2table with the measure flag set to area. But these numbers seem off. Is

[Freesurfer] Extracting longitudinal rate stats using cluster annot files

Hello Freesurfer team, I have been running a longitudinal analysis and have just finished analyzing the data in qdec and running a cluster correction. I would now like to use the significant cluster annot files to extract the thickness rate stats for each subject and put them in a table.

[Freesurfer] Extracting LGI stats using a label file

Freesurfer team, I have run a group of subjects through the recon-all pipeline with the lgi option. I then looked at differences between two groups in qdec and ran a cluster correction. I would now like to extract the lgi statistics for 3 of these clusters. I have label files for these

[Freesurfer] Talairach coordinates for Desikan gyral regions

Hi all, We are trying to depict spatial relations of each of the Desikan et. al (2006) gyral regions in a separate 3-D graph. To do this we need every regions' center Talairach coordinates in common space, not in relation to any particular group or subject. Is there a way to do this

[Freesurfer] Talairach coordinates for gyral regions

Hi all, How can I get the Talairach coordinates for the center of each of the gyral regions? Is this information listed somewhere or do I need to calculate it, if so how would I do that? Thank you. Briana ___ Freesurfer mailing list Freesurfer

[Freesurfer] Symbol to indicate a missing value for a discrete variable in a qdec data table

Hello, I am new to freesurfer and have created a qdec data table but have a few missing data points for a discrete variable. When using a continuous variable placeholder zeros are used. What should be typed into the table to indicate a data point is missing for a discrete variable? T

[Freesurfer] Qcache error

Hello, I am new to Freesurfer and have recently encountered an error when trying to run a qcache on one of my subjects. Below is the error. I would appreciate any advise you can give. Thanks! Reading source surface reg /misc/data14/jen/practicesurfacedatabase/CMO/surf/lh.sphere.reg No