Dear FSL TBSS people,
I searched and found a post within the archives
regarding designing a "within-group" analysis in TBSS,
where members within the group exhibit different
levels of a specific condition. Despite this, I have
not been able to design such a matrix/contrast set for
my own group of subjects.
I have tried using the Glm_gui (Mac) to set up such a
design for use in randomise. I have also followed
several examples from the Feat2 Practicals from the
lectures to glean how to port that design to tbss.
However, I remain empty-handed, mostly due to lack of
experience with the interface.
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Here is a subset of my subjects from which, if you
could provide an example design.mat/con file set, I
could generalize to my larger pool of subejcts:
two 10-yr old Females
three 14-yr old Females
two 16-yr old Females
So, seven subjects in all.
What would be the design.mat/.con if I would like to
measure how FA is related to the natural log of the
subjects' ages (on a voxel-wise basis).
Any help is appreciated.
Regards,
Robert Terwilliger
University of Pittsburgh
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