Couldn't do picture matching and couldn't do the experiment under one loop

cogitoss

I am trying to do a visual memory task with same person's 7 different facial expressions

I want to show a -lets say- happy face picture first and then randomly showed 7 picture that includes happy face. I want participants to remember and detect the happy face.

I figure it out how can I do randomization
but I couldn't do matching phase and I couldn't do the experiment under one loop

I would be very grateful if someone tell me where is the problem

Here is my experiment's overview

Knante

Hi Cogitoss,

I'm not sure what the issue is here and it's difficult to derive it from a picture alone. If you provide some more information it's easier to understand the problem.

I want to show a -lets say- happy face picture first and then randomly showed 7 picture >that includes happy face. I want participants to remember and detect the happy face.

Do you have only 7 different stimuli, or are they chosen from a larger file pool? If you have a larger file pool you could add the stimuli into a list and use random.shuffle to shuffle the list every trial. Have a look on the forum, there are many topics on lists.

I figure it out how can I do randomization
but I couldn't do matching phase and I couldn't do the experiment under one loop

By the looks of it you have created a different loop for every stimulus type (e.g. emotion), you can reduce this by adding a stimulus type variable into you Practice_loop and also into your Experiment_loop. Then you will only need one sequence, in this sequence the first sketchpad displays the facial expression participants need to remember, followed by the set of pictures with the target and the distractors.

If you have not already done so, the tutorials are a nice way to start.

Good luck,

Laurent