afni.nimh.nih.gov

Hi Davide,

Getting clusters outside the brain does not necessarily mean the model is bad. It might mean the design allowed for too much stimulus correlated motion, or even that there is ghosting in the EPI. Often, such patterns are okay, once we understand where they are coming from. Sometimes they are not okay.

Look at the patterns on the edge of and outside of the brain. Where are you seeing false activation?

- rick