Hi Doug,
The output of the analysis is a volume with performance values in each voxel. the performance ranges between 0 to 1 and I want to see if across subjects there is any region with above chance performance (Chance is 0.5).
Maryam
On Mon, Oct 1, 2012 at 6:10 PM, Douglas N Greve greve@nmr.mgh.harvard.eduwrote:
Hi Maryam, I must confess ignorance on search-light analysis. Can you give me more background on what it is, the output data, and what you want mri_glmfit to tell you? doug
On 09/30/2012 09:46 PM, Maryam Vaziri Pashkam wrote:
Hi Dough,
I have run a searchlight analysis on 10 subjects and want to run a random effects analysis with mri_glmfit across subject. I have the results of each subject projected on the fsaverage surface. But I have no idea how to make it to
- compare the values in each voxel with 0.5 instead of 0
- how to make it ignore the fact that I dont have variance for each
subject and only have a single performance value (support vector machine performance) for each voxel (it looks like the mri_glmfit needs a ces.var.nii)
Any idea how I can do this? Sorry if this is a rookie question. I am totally new to searchlight and random effects analysis in fsfast.
Thanks, Maryam
-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
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