How about dummy motion regressors for those subjects whose motion
parameters I don't want to include (trying to keep down the amount of
data to throw out ...)?
Michael T Rubens wrote:
> You need to keep the number of covariates constant across subjects.
>
> -Michael
>
> On Thu, Apr 30, 2009 at 1:59 PM, Esther Fujiwara <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> Is it possible to include motion parameters in first level analyses
> for some
> subjects (i.e., those moving around more) but not others if all
> subjects are
> later combined in a second level analysis? I suppose not, but I am
> not sure why.
> Thanks for any comments!
> Esther
>
>
>
>
> --
> Research Associate
> Gazzaley Lab
> Department of Neurology
> University of California, San Francisco
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