Dear Hongchuan
the conjunction analysis as I know it, works as follows:
- create a model including all conditions you're interested in
- create all necessary contrasts
- in the contrast manager choose the contrasts you want to "conjunct" by
pressing ctrl + clicking on every of these contrasts. You'll see on the
right side of the window your design matrix with all contrasts piled up
above it.
This contrast "accumulation" gives you, as far as I know, all voxels which
are significantly activated by ALL chosen contrasts.
any corrections by wiser people appreciated ;-)
hope this helps,
Karen
On Wed, 1 Dec 2004 16:50:07 +0800, Hongchuan Zhang <[log in to unmask]> wrote:
>Dear list,
>
> Where can I find detailed description for group-level conjunction
analysis procedure (how to perform in the SPM window)? I did not find any
information in the email list. Thank you!
>
>
>Hongchuan
>
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