Re: [HCP-Users] where are the head shape file for MEG

2015-06-19 Thread Elizabeth Anne Bock, Ms
@humanconnectome.org; Jair Montoya; Alexandre Gramfort; Francois Tadel Subject: Re: [HCP-Users] where are the head shape file for MEG I am not sure I fully understood what you would like to do in MNE and Brainstorm bur maybe the following are of help : In the anatomy directory there is an ascii file

Re: [HCP-Users] where are the head shape file for MEG

2015-06-19 Thread Elizabeth Anne Bock, Ms
-users@humanconnectome.org; Alexandre Gramfort; Francois Tadel Subject: Re: [HCP-Users] where are the head shape file for MEG Hi Beth, Allow me to chime in here: I would discourage you to rely on the fiducial and landmark locations as provided. These I have clicked in the 1mm anaromical images

Re: [HCP-Users] where are the head shape file for MEG

2015-05-19 Thread Timothy Coalson
If you are talking about resampling the low-resolution data onto the higher resolution mesh, yes, you can resample either direction (uses the same files, in fact, just reverse them). You will need the spheres used to downsample the surface in the first place. Look at

Re: [HCP-Users] where are the head shape file for MEG

2015-05-18 Thread Glasser, Matthew
...@mcgill.ca, Alexandre Gramfort alexandre.gramf...@gmail.com, hcp-users@humanconnectome.org hcp-users@humanconnectome.org, Eric Larson larson.eri...@gmail.com Subject: Re: [HCP-Users] where are the head shape file for MEG Hi, I included Eric here who also is an author of PySurfer which we

Re: [HCP-Users] where are the head shape file for MEG

2015-05-18 Thread Timothy Coalson
Back on this other question, wb_command indeed does not do decimation of the remove vertices from existing topology variety. The usual way to do surface downsampling with wb_command is to generate a new sphere with the desired number of vertices (and highly regular topology/spacing), and then

Re: [HCP-Users] where are the head shape file for MEG

2015-05-17 Thread jan-mathijs schoffelen
Hi Denis, Indeed the meshes’ vertices are indeed already registered in surface space, i.e. to the fsaverage, and are obtained from the 32k meshes provided in the structural processing package. However, we used wb_command for the subsampling, which as far as I know is in fact doing a

[HCP-Users] where are the head shape file for MEG

2015-05-15 Thread Elizabeth Anne Bock, Ms
I just downloaded the MEG data from the 500 Subjects + MEG2 Data Release. I see from the documentation that the MEG data should include a head shape file. This is not present in my downloaded set. Where can I get these? Thanks, Beth

Re: [HCP-Users] where are the head shape file for MEG

2015-05-15 Thread Denis-Alexander Engemann
I was wondering wheather the transforms would be suitable for mapping the freesurfer surface coordinates to the helmet space. If this step would work, the transforms and the coreg would be usable with other software such as for example the MNE suite. We could then write a routine that skips the

Re: [HCP-Users] where are the head shape file for MEG

2015-05-15 Thread Georgios Michalareas
Dear Beth, the head shape files are not provided with the data. The reason for this is that headshape digitization includes points around the nose, the eyes, the forehead and the entire head. This means that this information could lead to identification of a subjects identity. This is also the

Re: [HCP-Users] where are the head shape file for MEG

2015-05-15 Thread Elizabeth Anne Bock, Ms
: 514.718.6342 From: Denis-Alexander Engemann [denis.engem...@gmail.com] Sent: Friday, May 15, 2015 9:44 AM To: Georgios Michalareas Cc: Elizabeth Anne Bock, Ms; hcp-users@humanconnectome.org; Jair Montoya; Alexandre Gramfort Subject: Re: [HCP-Users] where are the head shape

Re: [HCP-Users] where are the head shape file for MEG

2015-05-15 Thread Georgios Michalareas
Michalareas *Cc:* Elizabeth Anne Bock, Ms; hcp-users@humanconnectome.org; Jair Montoya; Alexandre Gramfort *Subject:* Re: [HCP-Users] where are the head shape file for MEG I was wondering wheather the transforms would be suitable for mapping the freesurfer surface coordinates to the helmet space