Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-11 Thread Timothy Coalson
> roughly the same volume? Also you say that I should "carefully find the > volume" what exactly do you mean by "carefully" > > Thanks in advance, > > Claude > > > From: Timothy Coalson [tsc...@mst.edu] > Sent: 02

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-11 Thread Bajada, Claude Julien
_ From: Timothy Coalson [tsc...@mst.edu] Sent: 02 July 2018 19:28 To: Glasser, Matthew Cc: Harms, Michael; Bajada, Claude Julien; hcp-users@humanconnectome.org Subject: Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure We previously looke

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-03 Thread Claude Bajada
Hi Tim, Thank you very much for your detailed explanation Regards, Claude On it-Tnejn, 02 ta Lul, 2018 07:35 , Timothy Coalson wrote: On Mon, Jul 2, 2018 at 7:13 AM, Claude Bajada mailto:c.baj...@fz-juelich.de>> wrote: 2) from what I understand, structural qualities such as cortical

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Timothy Coalson
tome.org > Subject: Re: [HCP-Users] A few specific questions about the HCP data | MNI > space dedrifting & file structure > > Tim Coalson can explain how to dedrift MNI space (which as Mike says is no > longer true MNI space). > > Peace, > > Matt. > > On 7/2/18,

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Timothy Coalson
On Mon, Jul 2, 2018 at 7:13 AM, Claude Bajada wrote: > > 2) from what I understand, structural qualities such as cortical > thickness etc are measured in the individual's real space. However then, > what I do not understand is the file structure of the HCP data. The > structural measures such as

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Timothy Coalson
We previously looked at the MNI drift, and found that it is almost entirely an affine, even for the nonlinear template. We have a suspicion that this means that it was originally caused by the early MNI linear template, and that the issue was known by the time MNI nonlinear templates were

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Bajada, Claude Julien
? Regards, Claude From: Glasser, Matthew [glass...@wustl.edu] Sent: 02 July 2018 17:21 To: Harms, Michael; Bajada, Claude Julien; hcp-users@humanconnectome.org Subject: Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting &

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Glasser, Matthew
Tim Coalson can explain how to dedrift MNI space (which as Mike says is no longer true MNI space). Peace, Matt. On 7/2/18, 10:10 AM, "hcp-users-boun...@humanconnectome.org on behalf of Harms, Michael" wrote: > >Hi, >Re (1): >If you want to work with streamlines in MNI space then you have to

Re: [HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Harms, Michael
Hi, Re (1): If you want to work with streamlines in MNI space then you have to accept the "drift" (volume expansion) that is part of MNI space itself. Re (2): Maps may be resampled to surfaces in MNI space. But all the FreeSurfer structural quantities that we provide in the

[HCP-Users] A few specific questions about the HCP data | MNI space dedrifting & file structure

2018-07-02 Thread Claude Bajada
Dear experts, I have a few questions: 1) I am currently working on a project using tractography and the HCP data. I have used the HCP provided FNIRT based MNI registration in order to register individual streamlines from "native" or diffusion space (as per post HCP minimal processing pipeline)