Hello, I am having an issue where I had solid results, but now I cannot seem to recreate/find them again.

I had processed resting data in fmriprep. Uploaded that to Conn. Smoothed [8 8 8], denoised with normal denoising (including a parameter for each resting session). Then I had run analysis and found solid results!

So, I then also processed task data in fmriprep. Each run has 4 different tasks run up to 5 times per run. I imported that into Conn too. Reran denoising for all, and now not only have resting sessions as a variable, but also each task as a variable (e.g. 4 sessions, 4 tasks, 5 sections of each task in each run). 

Now when I run my old same analysis for resting data, I no longer have the same significance. I lost several significant clusters, and those that still exist are smaller.

I do not feel that adding on analysis of task data should have deleted the significance I found in resting data, since those sessions/runs are independent of each other. Task results should not impact resting results?

Why did this occur? Is it because in denoising I am now not only controlling for 4 resting sessions, but also for 4 tasks over 4 sessions (16 more parameters) in denoising? How can I fix this so I can see my original resting results again? Maybe there is a way to denoise only resting sessions for resting data, and then denoise the task events for task data only?

Thanks!