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adding a sketchpad or feedback item after a specific trial

edited April 2018 in OpenSesame

Hello again,
Thanks again for creating this amazing tool! I've used opensesame for one perception experiment. It worked really well!

I'm at the moment creating a lexical decision experiment where I want a sketchpad/feedback item to appear after a specific trial in a block of randomized trials.

For example, I would like to have 'question 1' item to appear after 'item 1' has played, and 'question2' after 'item2' has been played. I tried to attach the experiment here, but I filed...

I couldn't find any direct inline_script (like specifying some trial orders to make it happen?) that could solve the problem.

I have a solution which is not very straightforward or economical, but I think it might work?
So first I added a sketchpad element called 'question1' in the trial sequence, and used run_if condition to make sure that the 'question 1' will run if [item]=1. Thankfully it worked!!

As I also want to collect the response for 'question 1', so I tried the following two solutions:

1) change the allowed keyboard responses for the sketchpad 'question1'. I came across this discussion here (forum.cogsci.nl/index.php?p=/discussion/401/open-how-to-limit-allowed-response-to-down-key-in-a-sequence-of-sketchpads) and put the adapted code in an inline_script before the skeptchpad . But it didn't work:(

Adapted code:

Import module:

from openexp.keyboard import keyboard

Create keyboard item:

my_keyboard = keyboard(exp, keylist=['a','b'])

Pull keyboard input:

my_keyboard.get_key()

2) add a keyboard response: I only wanted to run this keyboard response if the question 1 is being played. I tried 'question1=YES' and 'question1=TRUE', but they didn't work. I guess there must be something wrong with the syntax...

Thanks a lot in advance!
Mengzhu

Comments

  • The problems could be solved simply by using the condition 'run if [item]=1 for all the added elements that I want to show after the trial 'item' 1. This way is not neat as I have quite a lot of elements that are needed to run after some certain trials. So I am wondering if there is any script that I could use to do this....
    Thank you!

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