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[open] Running time and keypress problems

edited July 2016 in OpenSesame

Hi!

I'm new to OpenSesame and I'm still getting used to it, so...
I designed a self-paced reading with a question after each sentence. The problem is that the response to keypress is taking about 5-6 seconds. The experiment is not too big (2 loops: training and trial; 35 cycles total) and I have no idea of how make it faster.
I'm affraid this delay will interfere in RT!

Besides, I have a problem with keypress on the question: the key has to be pressed twice to validate. I'd like that being pressed once would be enough.

Please, if anyone knows how to fix it..

Comments

  • edited 6:34PM

    Hi,

    Could you tell us what you did so far, that is how your experiment looks like, which OpenSesame items you use, etc...

    the key has to be pressed twice to validate

    This sounds as if you wait twice for a keypress. This usually happens if you don't set the timeout in the item that presents the stimuli (e.g. a sketchpad) to 0, but leave it being set to keypress. To fix you just need to change the timeout settings of your stimulus presentation item to 0 (once you give more detail how you present them, I can also give more detail how to fix it).

    Does this make sense?

    Eduard

    Buy Me A Coffee

  • edited 6:34PM

    Well, I'm using xpyriment as back-end. I have a Block sequence with a form-consent, a welcome sketchpad, 4 instructions sketchpads, two loops (a training and a trial one) and a thank you sketchpad.
    Within each loop I have a sequence with a fixation cross, 4 sketchpads displayng the variables (sentence segments from the loop) and a task sketchpad displayng a question (also a variable from the loop).
    I have three extra items in trial sequence: a keyboard_response, a logger and a sketchpad for pause (I created a variable called Pause and set the Run if based on it; the Pause_sketchpad runs if [Pause] = yes; the others items run if [Pause] = no).
    Also, between the loops I have an extra sketchpad to sinalize the begining of the trial section.

    I didn't know about the timeout = 0. I tried to set a timeout (that would be better) of 3500ms, but it wasn't responsing to keypress... so i set back to 'infinite' (in keyboard_response) and to 'keypress' (in sketchpad). I'll try it! Thx!

  • Hi,

    Sorry for not coming back to this discussion earlier. How is it going? From your description, I don't see why it should take that long to record a keypress. Did you try my suggestion? Did it help? If not, could you upload your experiment?

    Eduard

    Buy Me A Coffee

  • Hi!
    Sorry for not hadding back here, at least not logged in.. Yes it worked! Part of the delaying problem was my computer memory. But the keypress was fixed. Thank you!

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