[Freesurfer] FreeSurferColorLUT labels

2013-02-26 Thread Susan Alice McLaughlin
Hi, In FreeSurferColorLUT.txt (Freesurfer 5.1), there is a label for the inferior colliculus (7100), but this structure seems only to be labeled collectively with other brainstem structures (16) in aparc.a2009s+aseg. It appears from posts in the mail list that only a subset of the labels in

[Freesurfer] FDR threshold on functional data

2013-02-04 Thread Susan Alice McLaughlin
Hi, I am looking at functional group surface data analyzed with mri_glmfit in tksurfer (using Freesurfer 4.1). I would like to threshold using FDR - but only within a specified label - and then see the resulting functional data map. Once I have the functional dta loaded as an overlay, I have

[Freesurfer] Trouble performing Monte Carlo simulation constrained to label

2013-01-07 Thread Susan Alice McLaughlin
Hi, I am trying to run a Monte Carlo simulation on functional data constrained to a label using Freesurfer 4.0.1. I did not use Qdec for data analysis. Looking at a previous post - https://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2010-November/016290.html - I see that I should: 1)

[Freesurfer] Monte Carlo

2012-12-20 Thread Susan Alice McLaughlin
Hi Doug, I am trying to run a Monte Carlo simulation on functional data constrained to a label. Looking at a previous post - https://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2010-November/016290.html - I see that your advice is to 1) constrain when running mri_glmfit, then 2) use

Re: [Freesurfer] functional ROI analysis

2012-12-04 Thread Susan Alice McLaughlin
--seg yourlabel.func.nii --mask zstat1.nii --maskthresh 2 --masksign abs --o sum.dat The cope and the zstat are now volumes. doug On 11/26/12 8:26 PM, Susan Alice McLaughlin wrote: Hi Doug, Thanks for the quick answer. Sorry to be dense, but does this need somewhere to include registration

[Freesurfer] functional ROI analysis

2012-11-26 Thread Susan Alice McLaughlin
Hi, I am hoping do a surface-based functional ROI analysis on subject-specific ROIs that are both defined structurally and are masked by an all/nothing functional contrast. func2roi-sess seems perfect for this except that my data are not in an FS-FAST data/analysis structure, but are instead

[Freesurfer] resending question about 3rd level analysis

2012-08-23 Thread Susan Alice McLaughlin
Hi, I'm resending this e-mail, as it didn't seem to go through correctly yesterday: I’m a Freesurfer novice, and I’m confused about how to run a 3rd level cross-subject analysis on the surface using as input cross-run .gfeats from 10 subjects generated from a 2nd level analysis in FSL.

[Freesurfer] 3rd level surface analysis of fMRI data

2012-08-22 Thread Susan Alice McLaughlin
Hi,I’m a Freesurfer novice, and am confused about how to run a 3rd level cross-subject analysis on the surface using as input cross-run .gfeats from 10 subjects generated from a 2nd level analysis of fMRI data in FSL.Following the directions posted at

[Freesurfer] recon-all

2012-07-29 Thread Susan Alice McLaughlin
Hi Freesurfer experts, We’ve been collecting structural (1mm isotropic) and functional (2.75x2.75x3mm) data on a Philips 3T scanner using an 8-channel head coil. We are reconstructing each subject’s surface and mapping functional data processed in FSL’s FEAT to the surface. For some subjects,