Hello,

Is it advisable to use entire FreeSurfer regions (e.g., I'm using Precuneus in one analysis in the attached image) in seed-to-voxel resting state second-level analyses? The reason I ask is because when I look at group-level FC results, it appears to cover the entire brain (see attached image). Is it better to use a small sphere (i.e., 5mm) around specific coordinates instead? Any feedback would be greatly appreciated!

Thank you!