Tutorial Code not Registering Key Press

Coding
1

Hello,

the attached code closely followed coder tutorial part 2 from the official website. For some reason the code recognizes key presses during the ‘welcome screen’ but it does not register in the next screen. I was not sure why this was occuring. Would very much appreciate your feedback. Thanks
tutorialerror.py (3.4 KB)

2

Hi There,

Please may you share the link to which tutorial you are following ? Looking at your code I am unsure which tutorial this is!

It looks like you are entering a stimulus presentation loop where no key presses are yet being watched, so it will feel like nothing is responsive i.e.:

for thisIncrement in staircase:  # staircase was initialized before. from it we get element thisIncrement.
    # set location of stimuli
    targetSide= random.choice([-1,1])  # will be either +1(right) or -1(left)
    foil.setPos([-5*targetSide, 0])
    target.setPos([5*targetSide, 0])  # in other location

    # set orientation of probe
    foil.setOri(expInfo['refOrientation'] + thisIncrement) #every loop it sets the orientation of the foil image by getting the orientation in expInfo and adding thisIncrement component.

    # draw all stimuli
    foil.draw()
    target.draw()
    fixation.draw()
    win.flip()

Thanks!

3

appreciate the help! Tutorial 2: Measuring a JND using a staircase procedure — PsychoPy v2022.2.4

4

Hi Chris,

Ok I suspect this might be an indentation thing - the while loop in this section needs to be in the same loop as your stimulus presentation loop - hope that helps!

Becca

5

thats exactly what it was. Thank you so much!