no, sorry. I'll leave that for Doug and Marie
Bruce
On Wed, 6 May 2015, Jane
Garrison wrote:
Thanks so much Bruce. I also posted yesterday asking about whether it was
possible to get LGI values for a spherical ROI based on a particular mni
coordinate (I’ve been using Qdec so far for group analysis but can’t work out
how to draw the ROI nor how to pull the LGI values. Would you have any advice?
Thanks again,
Jane.
Dr Jane Garrison
Director of Studies, Psychological and Behavioural Sciences
Robinson College, University of Cambridge
Behavioural and Clinical Neuroscience Institute (BCNI)
Department of Psychology
University of Cambridge
Downing Street
Cambridge
CB2 3EB
jr...@cam.ac.uk
01223 764428
On 6 May 2015, at 13:33, Bruce Fischl <fis...@nmr.mgh.harvard.edu> wrote:
Hi Jane
we don't really see much blurring of folding patterns with the
high-dimensional spherical warp so you might as well use them all
(although there might be issues with memory - perhaps Doug can comment if
this is still true).
cheers
Bruce
On Wed, 6 May 2015, Jane
Garrison wrote:
Hi,
I have a question about the utility of the make_average_subject command.
I have a schizophrenia study with 115 subjects and am worried about using the
Freesurfer average brain, given that scz patients have distinct morphological
aspects to their brains. I am therefore considering making an average brain
from my subjects, but have read some old posts cautioning against this, since
an average brain taken across a large number may be too indistinct to be of
value.
Is there a recommendation on this - should I produce an average across all my
subjects, or should I maybe use a small (20?) sample of my subject brains to
create an average?
Thanks so much
Jane.
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