Here’s a description of the experiment that I am trying to setup using Superlab and would appreciate any help I can get.
Each trial consists of the following: 1) 3 sec fixation cross → 2) Picture of a face (either sad or happy face) displayed for 6 seconds → 3) 500 ms fixation cross → 4) A word that will be displayed until participant responds or if no response occurs within 5 seconds, the next trial begins → 5) 8 second intertrial interval.
Order of pictures presented:
There are two sets of pictures (i.e., 16 sad faces and 16 happy faces) that I would like to present in a pseudorandom order. No more than 3 sad faces or 3 happy faces (chosen randomly from the stimulus list) should be presented in a row. I am not sure how you implement this design. Should the stimulus lists be separate (i.e., one for sad faces and another for happy faces) or should there be only one stimulus list? I am not sure how to setup the macro either.
In the second part of the experiment, I would like participants to view the pictures again but in the exact SAME ORDER as was initially presented but this time, they are asked to rate the picture. How do I make the pictures appear in the exact SAME ORDER as was initially presented?
Note: I have attached the experiment but used text instead of pictures in the stimulus lists.