Hi Matthieu,

yes, that is possible. Instead of group, you use a variable for your score (and interaction etc). Sometimes it may also makes sense to use score instead of time.

Best, Martin

> On 12 May 2017, at 10:51, Matthieu Vanhoutte <matthieuvanhoutte@gmail.com> wrote:
>
> Dear Freesurfer's experts,
>
> I have searched through the mailing list but haven't found any answer to my question.
>
> Is it possible with LME model to make correlations between for example cortical thickness surface data and cognition scores along time ? As it is possible to test for interaction of group X time, is this also in the same way feasible to test for coognition score X time on cortical thickness ?
>
> Many thanks for your advice !
>
> Best regards,
> Matthieu

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