Re: [Freesurfer] Bonferroni multiple comparison correction

2009-11-20 Thread Bruce Fischl
Hi Jon, what statistical tests are you running? That defines what the bonferroni correction will be. For example, if you are testing for thickness differences in each parcellation unit, then you need to correct for the # of parcels. cheers, Bruce On Fri, 20 Nov 2009, Jonathan DuBois wrote:

[Freesurfer] Bonferroni multiple comparison correction

2009-11-20 Thread Jonathan DuBois
When correcting for multiple comparisons with Bonferroni for FS parcilation statistics, is it necessary to adjust for all parcellations (35) or just the variables (in our case mean thickness and surface area)? Assuming that no prior hypothesis is used to constrain the number of parcellations. Than

Re: [Freesurfer] how to use my own template

2009-11-20 Thread Bruce Fischl
Hi Guang, it depends what you want. The .gcs file is what we use to generate the automated parcellations. It needs to match the registration that you used to build your template, so the parcellation may not work well for you with your own template cheers Bruce On Fri, 20 Nov 2009, Guang Zeng w

[Freesurfer] how to use my own template

2009-11-20 Thread Guang Zeng
Hello, there, I built our own template, and gonna use it to test some subjects. Currently, I have two questions, (1) How can I use my template, In "recon-all.sh", I found that their two places where ?h.average.curvature.filled.buckner40.tif are called, so I just need to change all the "?h.a

Re: [Freesurfer] Error in template initialization.

2009-11-20 Thread Martin Reuter
Hi, this usually happens when the RAS center is incorrect in your data. It is not really a bug, but we prepared a version that does not use the ras coordinates but the center of mass instead for initial alignment. What operating system are you running? Cheers Martin On Nov 20, 2009, at 8:2

Re: [Freesurfer] Error in template initialization.

2009-11-20 Thread Bruce Fischl
yup, looks like a bug. Can you arrange to send the data to Martin? thanks Bruce On Fri, 20 Nov 2009, Hui Zheng wrote: > Hi all, > > We have a problem in longitudinal processing. The mri_robust_template > somehow chopped off a part of the brain (attached image). Any idea how to > correct this? Wi