Also, if you fitting a simple tensor model via ‘dtifit’, you may want to
consider limiting yourself to just the b=1000 shell (+ b=0’s), because the
simple tensor model breaks down for high b-values. There should be a post in
the archive about this.
Cheers,
-MH
--
Michael Harms, Ph.D.
---
That’s right. Matrix1 seeding strategy (seeds on the white matter surface) has
a distance bias that is may ways similar to the one in real tracer data though
via a different mechanism. Matrix3 seeding strategy (seeds in the white
matter) does “correct” for a distance bias in the sense that lon
I believe both binaries will use the grad_dev to perform the correct described
in the bvals and bvecs in a voxelwise manner.
Peace,
Matt.
From:
mailto:hcp-users-boun...@humanconnectome.org>>
on behalf of Athanasia Metoki
mailto:athanasia.met...@temple.edu>>
Date: Monday, October 9, 2017 at 3
Hi
I have a question regarding the MEG Working memory dataset
I have downloaded all the eravg data
but I would like to get the 0-Back average only for the face condition
(not for the tool)
is it available or do i have to compute it by myself ?
and in this case, how can I do this ?
thanks
_
I think you will need to go in the matlab preferences and fix that. I don’t
recall exactly where it is, but it should be easy to find on google. Basically
you need to turn off the array size limit. Alternatively you need to run the
job on a machine with more RAM.
Peace,
Matt.
From: Sang-Yo
That looks like a generic matlab error related to the amount of memory the
computer has. The memory requirements for some of these scripts are fairly
high (the machines we often use have 64GB of memory).
Tim
On Mon, Oct 9, 2017 at 9:58 AM, Sang-Young Kim wrote:
> Dear Matt:
>
> I ran the mult
You could also make a cortical-only version of the cifti file.
-cifti-separate will give you the cortical data, and the medial wall
excluding ROIs, which you can then use in -cifti-create-dense-scalar to
re-form them into a dscalar file. You could instead make a cortical-only
template cifti file,
On Sun, Oct 8, 2017 at 11:41 PM, Gopalakrishnan, Karthik <
gkart...@gatech.edu> wrote:
> Thanks Matt and Tim!
>
> Matt, I also wanted to know — in the dDT1 method to obtain WGM-to-WGM
> surface matrix reported in the paper you referenced, the number of
> streamlines isn’t corrected for distance bi
Dear HCP experts,
I would like to analyze some HCP diffusion data. I am using the
preprocessed HCP data from the 900 subjects release.
I would like to do dtifit and run bedpostx and then tractography (I know
dtifit is unrelated to the latter bt I'm mentioning it because I would like
to be consist
Dear Matt:
I ran the multi-run ICA+FIX according to your guideline. But at the last stage
of cleaning the data (e.g., fix_3_clean), I got an error message in the file of
.fix.log. Please see below:
Could you please help me how to handle this issue?
Thanks.
Sang-Young
TR =
0.8000
Elaps
Dear Tim,
Thank you for your reply. I wanted the subcortical data to be 0 so that it
would not interfere with some math operations I wanted to perform using
cortical data only, but I agree with your idea that this is not the optimal
approach (plus the 0's would still affect some of the math oper
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