Dear Joaquim,

If 'multimodal' analysis used with images of the same modality only understand as 'overlap' analysis, how could compare the OCD with other anxiety disorders? Just like the paper published Arch Gen Psychiatry 2010; 67:701-711. Should I use Linear model analyses: comparing two groups, binarized OCD as 1, others as 0, then filter OCD?

Thanks a lot in advances!