For subcortical structures, it is as simple as wb_command -cifti-separate
using -volume-all.
For surface data, you would need to map it back into volume, using that
subject's surfaces, thereby losing the advantages of surface registration
(for both analysis and display). You would need to use
We have recently identified an error in the MEG working memory task protocol
description in the HCP 1200 subjects reference manual. A correction will be
made in the upcoming release manual (April 2018 updated 1200 subjects reference
manual including reprocessed 7T data). However, for anyone
Hi all,
Any one knows how to extract activation volume in nifti from cifti file
like this one :
'139435/FMRI/fMRI_EMOTION/tfMRI_EMOTION_hp200_s4_level2.feat/139435_tfMRI_EMOTION_level2_hp200_s4.dscalar.nii'
Best,
Yassine
--
Yassine Benhajali
Doctorant en Neuroanthropologie
au Laboratoire SIMEXP
Hi Benjamin,
Sorry for late reply but I was out of office.
Regarding single trial source analysis I have put together some code
that shows you how to project all motor trials for LH into source space
in a matrix with dimensions:
Nsources * Ntimespoints * Ntrials
beware this matrix for the
I would use an equal amount of both phase encoding directions. You can use
algorithms like MIGP to combine across subjects, or within subjects you can
concatenate after demeaning and potentially variance normalizing. Note that we
recommend using the sICA+FIX cleaned data and if comparing
Hi Michael
Many thanks. Not really but maybe space and not knowing how to combining
them all easily and using a script to do this. Probably because most of the
data I used before was just AP so I was wondering whether really. I need to
do this. Also because of space and finding an automated way
Hi,
“AP” (short for anterior-to-posterior) and “PA” (short for
posterior-to-anterior) refer to the phase encoding direction.
In general, as Jenn said, we recommend using both the AP and PA data, so that
your results aren’t “biased” toward a particular phase-encoding direction.
Is there a
Dear Jenn and all,
Many thanks for your email and replay. Is the AP the fold direction? or
what is it exactly? May I ask if I analyze the data with AP flold direction
is this acceptable? I have used and downloaded other free data (e.g. the
fcon 1000) but all what I analysed before where one nifit
Hi Aser,
First off, if you have 7T preprocessed rfMRI data that we previously released,
do not use it. There was a processing error that we have now fixed and are
preparing to rerelease the corrected preprocessed data in the next couple of
weeks.
If you are processing the unprocessed 7T data
Hello
I am new to the data and apologies if this is a naive question.
All of the data contain or acquired with AP and or PA. If I would like to
use for example conn to analyse the data can I just analyse rest 1 (PA) or
it has to be both? If both how can I combine them or proceed ?
Many thanks
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