Re: [Freesurfer] Amazon EC2 Version of FreeSurfer 5.1 Available

2011-11-11 Thread Pedro Paulo de Magalhães Oliveira Junior
I've put together the basic tutorial on getting started using Amazon AWS system: It's in the same place Nick pointed out: https://surfer.nmr.mgh.harvard.edu/fswiki/AmazonCloud - Pedro Paulo de Magalhães Oliveira Junior

Re: [Freesurfer] Amazon EC2 Version of FreeSurfer 5.1 Available

2011-11-11 Thread Thomas Ballinger
I had previously worked on a script which, given Amazon EC2 credentials, would spin up the instance, upload freesurfer data and run it, then send an email when done - if this would be helpful to anyone I'll bother to finish it, we use local compute resources so I never quite bothered. Now that

[Freesurfer] flipping surface data

2011-11-11 Thread kelsi
Hi Freesurfers, Is there a tool to flip the orientation of surface data to the opposite hemisphere? We are working with stroke patients, and I would like to do analysis of the contralesional hemisphere of all the patients. However, this requires putting them on the same hemisphere for ttests,

Re: [Freesurfer] Amazon EC2 Version of FreeSurfer 5.1 Available

2011-11-11 Thread Nick Schmansky
thanks Pedro Paulo! Thomas, yes that script would be useful. A handy 'use case' for a contributor to add to that wiki page would be to show how to use your script to process the 40 tutorial subjects we supply on our site. n. On Fri, 2011-11-11 at 09:11 -0500, Thomas Ballinger wrote: I had

[Freesurfer] Job posting for Purdue BME (fwd)

2011-11-11 Thread Bruce Fischl
FYI -- Forwarded message -- Date: Fri, 11 Nov 2011 11:58:19 -0500 From: Thomas Talavage t...@purdue.edu Subject: Job posting for Purdue BME Hi all --- Purdue has posted a job announcement for our BME department, including (substantial) potential to hire someone into medical

[Freesurfer] mri_glmfit search space = 0

2011-11-11 Thread kevin bickart
Hi all, I am conducting a contrast of z (r) maps from 3 seed-based resting-state networks (e.g., 1 2 and 3). To eliminate the influence of anticorrelations on the contrast results, I thresholded the z (r) maps at 0 before running mri_glmfit, thereby eliminating voxels with negative z (r) values.

Re: [Freesurfer] mri_glmfit search space = 0

2011-11-11 Thread Douglas N Greve
Hi Kevin, the problem is that once you threshold for 0, there are no voxels that have non-zero values in all of the input subjects. Such voxels are pruned because there is not a good model for them. The GLM code does not do a different design at each voxels. In general, doing such thresholding

[Freesurfer] using expert-options on initial run

2011-11-11 Thread Michael Harms
Hi guys, There is an issue with recon-all abending if you use the -expert option on the very first call to recon-all, because recon-all attempts to copy to $subjid/scripts/expert-options before the scripts directory has been created. As an attempted workaround I manually created an empty

[Freesurfer] DTI Group Analysis Study

2011-11-11 Thread Antonella Kis
Hi, I am trying to do a DTI Group Analysis study using a MNI152 standard space for registration. 1). I wonder in case I want to use MNI 152 and not CVS space using TRACULA if I have to follow all the steps     starting Setting Up a Configuration File to run Tracula and then to  continue

Re: [Freesurfer] using expert-options on initial run

2011-11-11 Thread Nick Schmansky
thanks, i've fixed recon-all locally for the next release. i added this line: mkdir -p $subjdir/scripts before this line: set XOptsPreExist = $subjdir/scripts/expert-options n. On Fri, 2011-11-11 at 14:52 -0600, Michael Harms wrote: Hi guys, There is an issue with recon-all abending if

Re: [Freesurfer] using expert-options on initial run

2011-11-11 Thread Bruce Fischl
Hi Mike that's just our way of ensuring that people using the expert opts are actually experts :) Bruce On Fri, 11 Nov 2011, Michael Harms wrote: Hi guys, There is an issue with recon-all abending if you use the -expert option on the very first call to recon-all, because recon-all

Re: [Freesurfer] using expert-options on initial run

2011-11-11 Thread Michael Harms
Ok, so a successful work-around strategy currently would be a two command approach: recon-all -s $subjid -i input.nii recon-all -s $subjid -all -expert expert.opts But it would be nice if recon-all -s $subjid -i input.nii -expert expert.opts worked as well :) cheers, -MH On Fri, 2011-11-11

Re: [Freesurfer] DTI Group Analysis Study

2011-11-11 Thread Anastasia Yendiki
1. Currently trac-all uses only the MNI template, not CVS. So yes, all steps apply. 2. See the tracula tutorial, section outputs from tracula, to see where to find the MNI-space outputs. 3. What clusters are you talking about? Do you want to do a voxel-based analysis? If so, why are

[Freesurfer] Freesurfer - problem with automatic labeling of V1 using the Hinds method in 5.1.0

2011-11-11 Thread Andrew Bock
Hello, I am having a similar problem to one described on the freesurfer mail archive, where I receive the following error when trying to identify V1 using the Hinds method (i.e. recon-all -s subject -label_v1): processing subject V1_average... MRISreadVertexPosition(white): could not open file

Re: [Freesurfer] Amazon EC2 Version of FreeSurfer 5.1 Available

2011-11-11 Thread Thomas Ballinger
I've posted two scripts -- one for starting an instance and one for running freesurfer -- using Pedro's AMI. They're in Python, and require two additional Python packages which are easily installable. If people find this a good starting point, please send me suggestions or code (including

Re: [Freesurfer] Amazon EC2 Version of FreeSurfer 5.1 Available

2011-11-11 Thread Nolan Nichols
Thanks, Pedro! I am glad to see that you posted a public AMI for freesurfer. And thanks to Thomas for producin documentation on how to use it. This thread inspired me share a StarCluster AMI (ami-27f1384e in the us-east-1 region) that I built for batch FS jobs, which includes the initial setup