Dear Colin
Thank you very much for your swift reply.
So I have some more questions.
>There are a few possible approaches. Run the t-tests and mask with the significant ANOVA findings, or extract beta values for >each person from the significant clusters from the F-test, and do group comparisons on those. The second option may be >best, as you are now running 1 simple t-test for each comparison for each cluster. However, be aware of the difference, as this >approach tests "overall in this cluster does group A differ from B". And this may have issues. For example in a large cluster if >group A > B in some parts but B > A in others. It is not always fair to assume that all voxels in a large cluster will show the >same effect. So if you have large clusters, whole brain t-test masked with the F-stat may be best.
I am sorry that I am a beginner of the statistical analysis and that send mails repeatedly.
How do I extract these beta values of the cluster?
I am very grateful if you help me.
Thank you very much.
Takuya
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