sampler after keyboard + time

Comments

• eduard

  November 2023

  Hi Guillaume,

  Have you seen the Advanced delay item? If I am not mistaken you can simply add this one after the keyboard response, specify the desired time, and then put the item you need afterwards. This should work, right?

  Eduard

  
• guipru

  November 2023

  Hi Eduard

  Thank you for your return

  Advanced delay do not support coroutines

  My goal :

  stimulus

  keyboard Response

  then after response at X ms --> tone (sampler) if correct response

  :)
• eduard

  November 2023

  Well, you need to tell me that you are doing this in a co-routine, you know.

  The simplest solution is to copy the last sketchpad to after the response and set its duration to 95 ms. If the sketchpad is identical to the previously presented visual information, then the screen won't change after the response was given for 100 ms, so you have effectively an extra delay of 100 ms.

  Does this make sense?

  Eduard

  
• guipru

  November 2023

  Hi Eduard,

  I thank you. Indeed, I think I didn't detail the task enough.

  In my phase (see image) that I have 2 sketchpads: a stimulus is presented for 250 and remains on the screen for this period of time. At the same time (thanks to the coroutine) I have a second sketchpad which runs and waits for the response (this is a trick that I found, otherwise either the stimulus disappears with the response or... it bugs!) .

  After the response (there are two stimuli with correct response S1 = "a" and S2 = "b") I would like a tone to appear:

  T1 if S1 and therefore "a" BUT after a delay after/following the response of 100 ms;

  T2 if S2 and therefore "b" BUT after a delay after/following the response of 750 ms.

  Thank you +++ for the help because "je patauge dans la semoule/I'm floundering in semolina" as they say in France :)

  

  
  
• guipru

  November 2023

  Hi Eduard,

  I thank you. Indeed, I think I didn't detail the task enough.

  So we can see in the phase (see image) that I have 2 sketchpads: a stimulus is presented for 250 and remains on the screen for this period of time. At the same time (thanks to the coroutine) I have a second sketchpad which runs and waits for the response (this is a trick that I found, otherwise either the stimulus disappears with the response or... it bugs!) .

  After the response (there are two stimuli with correct response S1 = "a" and S2 = "b") I would like a tone to appear:

  T1 if S1 and therefore "a" BUT after a delay after/following the response of 100 ms;

  T2 if S2 and therefore "b" BUT after a delay after/following the response of 750 ms.

  Thank you +++ for the help because "I'm floundering in semolina" as they say in France :)

  
  

  

  
  
• eduard

  November 2023

  I am not sure I understand, but I don't think you need a co-routine. You want your stimulus to be visible for 250 ms, at the same time you start response collection up to 2000 ms. After the response, you don't want the stimulus to disappear, but to continue to be on the screen until the end of the trial. In the mean time, depending on the condition and the response, you will play a specific tone after X ms following the response. Is this correct?

  Eduard

  
• guipru

  November 2023

  Almost !

  The stimulus appears for 250 ms then disappears, the participant can respond at any time (generally it is after 250 ms) but I must be able to record a response during these 250 ms or after (with a maximum of 2000 ms).

  Afterwards it's exactly that: once the participant has responded (when the key is pressed) a delay of X ms then a sound (=a sound is triggered after X ms of the response).

  This is mainly my difficulty: to make this sound "trigger" after a delay in the response

  Thank you Eduard++
• eduard

  November 2023

  Newexperiment.osexp

  Hi,

  I don't think this is possible with co-routines. You'll have to add the delays to the sequence following the co-routine, as demonstrated in that example. Please adapt it to your needs and try it out (focusing on the timing). The experiment as it is, does not work yet!

  If you can't get this to work, I can provide a fully coded example.

  Eduard