Dear Caroline,

You have to only enter one 'art_regression_outliers_and_movement_f*.mat' file in multiple regressors option in the first-level design matrix. This file contains both outliers and realignment parameters from preprocessing.

Best,

Indrajeet

On Mon, May 18, 2015 at 6:00 PM, Caroline <[log in to unmask]> wrote:

Dear SPM experts,

I use Art toolbox to check motion in my data. When performing 1st level analyses, I would enter motion parameters in multiple regressors. Should I use 'art_regression_outliers_and_movement_f*.mat' or 'rp_f*.txt' from preprocessing ?

Thank you so much
Best regards
Caroline