Reply-To: | | [log in to unmask][log in to unmask]> wrote: >>>>>>>> This means that the connectivity of X and Y are parametrically modulated by your PM variable. For example, if swallow number is your PM and you have a positive value for the PPI PM, then you would interpret this as the connectivity is increasing with each swallow (see Humbert and McLaren 2014). >>>>>>>> >>>>>>>> Hope this helps. >>>>>>>> >>>>>>>> Best Regards, >>>>>>>> Donald McLaren, PhD >>>>>>>> >>>>>>>> >>>>>>>>> On Wed, Sep 23, 2015 at 5:58 PM, Aser A <[log in to unmask]> wrote: >>>>>>>>> Hi all, >>>>>>>>> >>>>>>>>> I have a design (task) where I also included parametric modulation (PM) in. >>>>>>>>> >>>>>>>>> I think performed PPI in the main effect of the task as well as the PM. >>>>>>>>> >>>>>>>>> My question is more related to understanding the meaning of PPI in the PM. So say for example if region X was shown to be connected with region Y in the PPI of the PM. >>>>>>>>> >>>>>>>>> Does this indicate that both regions are functionally behaving in the same way and have similar relationship of the PM? >>>>>>>>> >>>>>>>>> Or in other words how would you explain this ? >>>>>>>>> >>>>>>>>> Many thanks >>>>>>>>> >>>>>>>>> Aser >[log in to unmask] |