Hi Buyean
> Dear SPMers,
> I am investigating if there is a significant relationship between the level
> of dopamine receptors and one of the cognitive tasks.
> There are twelve binding potential images (e.g., images of dopamine receptor
> density) and 12 numbers for the cognitive task.
> I will greatly appreciate if someone can guide me with this analysis.
> (fowarding emails, any website, or any reading material that I can start with).
> Based on my reading of numerous websites, I think I need to use the simple
> regression, but there are many options in SPM2 and I am not sure which
> option I need to choose.
I'm not familiar with receptor binding but I'm quite confident with the
approach you suggest.
In SPM simply use the regression analysis with cste (the cste modellig
the mean activity) and regress, ie find the the voxels in which you have
a correlation, the cognitive test values. First enter the 12 images then
add 1 regressor and enter the scores. Estimate and look at the result
:-) that's it.
Hope this helps
Cyril
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