afni.nimh.nih.gov

> By "trial-by-trial covariate" do you mean some behavior measure at the trial level?
Yeah it's subjective ratings for each trial, I want to model habituation effects (like I would do for regular behavioral data).

> You can specify the model the way you prefer through the -model option in 3dLMEr.
Yes that's what I'm thinking of doing but I can seem to find any people "doing" it and I wondered if it was even possible or if there were caveats that I couldn't think of.


David