Hi:
I have a visual color fMRI 2nd level study and a BW fMRI 2nd level
study... I want to get the difference of that two studies, ie the
difference of the activation levels between bot fMRI 2nd level
studies... How can I do ?...
Sincerely,
Gonzalo Rojas Costa
> Date: Sun, 22 Jun 2008 03:11:29 +0100
> From: "Christian F. Beckmann" <[log in to unmask]>
> Subject: Re: difference of two second level studies...
>
> Hi
>
> typically by creating an analysis across the different inputs of the
> 2nd level, i.e. modifying your 2nd level analysis to allow you to test
> the difference question. E.g. if your current different 2nd level
> analyses involve calculating a single mean group activation then the
> new 2nd level analysis should be an unpaired (or maybe even paired) t-
> test as illustrated in the FEAT online manual.
> hth
> Christian
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