The presentation of two associated pictures

Hello everyone,
I want to present two images in a row, the first one is a set of faces, the second is a single face which is a member or average face of the previous set. How can I put these two kinds of images into the condition list to guarantee that the single face comes from the previous set instead of others? Should I create a new variable to reconcile the two images before and after?
Thanks for your answer very much!!!


in an Excel-file create four columns (face1, face2, face3, face4) for the first set of faces and a column named target which contains your target. Loop through this Excelfile row by row. In your routine, first present your first set for the desired amount of time, then the target.

You might want to take a look in the book “Building Experiments in PsychoPy: A Step-by-Step Guide”.

Best wishes Jens

Thank you so much! :face_holding_back_tears: I’ll go and read the book seriously.