To get sig maps for  an individual, this is problematic but I could
probably come up with a work-around. For a group analysis, you can
simply compute each taskreg separately, then subtract the two prior to
running mri_glmfit.
doug

On 11/10/2014 01:36 PM, Caspar M. Schwiedrzik wrote:
> Hi!
> A quick follow-up:
> I have a taskreg file with 6 continuous predictors. I would like to
> run specific contrasts, e.g., predictor 1 vs. mean(predictor 2:6).
> From what I gather, selxavg3-sess will run automatic contrasts on
> taskregs, but the automatic contrasts are against baseline. This is
> not what I need at this point.
> mk-contrast-sess does not like what I am putting in because I do not
> have a paradigm file in which condition numbers are specified.
> Is there a way to compute specific contrasts between multiple
> taskregs, and if not, is there a workaround?
> Thank you very much, Caspar
>
>
> 2014-11-06 15:23 GMT-05:00 Caspar M. Schwiedrzik
> <cschwiedrz@rockefeller.edu <mailto:cschwiedrz@rockefeller.edu>>:
>
>     Hi!
>     I have several external regressors in my analysis that I configure
>     with -taskreg in mkanalysis-sess (something like -notask -taskreg
>     nameoffile 6).
>     I was wondering how to set up mkcontrast-sess to contrast these
>     regerssors given that I do not have a paradigm file for them.
>     Can I just do something like -a 1 -c 2 -c 3 -c 4 -c 5?
>
>     Thanks, Caspar
>
>
>
>
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MGH-NMR Center
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