Hi - yes that's right - see previous similar emails for the standard
caveats.
Cheers.
On 31 Aug 2009, at 08:45, Reut Granot Halevy wrote:
> so just to make sure I understand the manuals , if i have 2 test
> scores for
> each subject and i would like to find voxels correlating with each
> test and not
> with age should my design be:
> group EV1 EV2 EV3
> test1 test2 age
> where all scores are demeaned
>
> and the contrasts
>
> EV1 EV2 EV3
>
> 1 0 0
> -1 0 0
> 0 1 0
> 0 -1 0
> considering i want to find both positive and negative correlations.
>
> thanks
> reut
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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