#Psychopy loop type random no repeat how to
#Psychopy loop type random no repeat code
#Psychopy loop type random no repeat trial

Inside the loop we use the sound.Sound() function to specify that we are dealing with sound files. Then we create a loop to loop through our stimuli and play them.

#Psychopy loop type random no repeat code

Make sure the sound waves are located in the folder that your code is saved in. I have used three sound waves, one that makes dog noises, another that makes cat noises and a third that makes chicken noises. Then we create and object for our sound waves. Next we create a window, just like we did for the visual stimuli. First we import the sound module and the other necessary modules.įrom psychopy import sound, visual, event Playing audio files in an experiment window is simple. Note: remember to cut your sound files so they are in the right time length you need for your experiment. There is a website here that can convert other types of audio files into the.

#Psychopy loop type random no repeat how to

We will specifically be focusing on how to add. This section focuses on implementing audio files into your Psychopy2 script. I can’t think of anything else or what I’m doing wrong.For some experiments you will need to play an audio file for the participant. Would it matter at all if the 10 values (‘jzt’, ‘wzt’,… ) in $stimuli were grouped (at the moment they are in ‘random’ order)? I tried deleting $piano altogether to see whether it being there interferes with the above bit of script which only specifies values from $stimuli. files… but I can’t do it for $stimuli as these values & their number is fixed. I can get around repetition in $piano by creating 30 unique wav. It doesn’t matter what value from $piano is combined with what value from $stimuli as long as neither of these values featured in the preceding trial. Some of them have also been repeated consecutively. Not a lot (one or two items are repeated consecutively) but it’s still there… Also note the 2nd column of my stimuli set $piano containing 10x wav files. …in Begin Experiment there is still repetition. ThisStimulus = (thisStimulus+randint(1,10))%10 ThisStimulus = (thisStimulus+randint(1,9))%10 Would anyone have any idea as to how to get around this problem?Īlso, I need to be able to run this on Pavlovia, but for now getting it working in the builder would be great. When I run it in the builder the 3 letter combinations aren’t showing. The revised sheet linked to the loop has 3 columns only (piano, corrAns, picture). I also created a revised excel sheet where I took out the column containing these 3 letter combinations so as not to confuse the builder. Stimulus_list = *# I have adjusted the values to those in my stimuli sheet. List_ok = True # Yay! The loop won’t run again. Shuffle(stimulus_list) make sure the same target doesn’t appear on consecutive trials This is the code I got from another post (by kmcdubb) same stimuli is still likely to feature twice in a row. I have tried inserting a code element at the beginning of the loop and top of the routine but info in the loop prevails i.e.

#Psychopy loop type random no repeat trial

TRIAL 1: text stimuli ‘ijb’ & sound/a.wav TRIAL 2: text stimuli ‘abz’ & sound/d.wav TRIAL 3: can’t include either text stimuli ‘abz’ or sound/d.wav) I have used the ‘randomize’ function within the builder which is fine but I would like to ensure that no one set of letters or sounds features in consecutive trials (i.e. of text stimuli), correct answers (in response to sound stimuli), and a jpg of a piano key (30x) which is to be displayed at all times. text stimuli (x 30 unique 3-letter-long combinations), sound stimuli (10 varieties input 3x to match no. I have created an excel sheet which contains all the values i.e. Must indicate which sound is the odd one out by clicking either ‘z’ or ‘m’.Hear 3 sounds and must decide which sound is the odd one out.I have designed an experiment (using the builder) where in a single trial participants are simultaneously presented with audio stimuli and text stimuli. Hello, I’m new to PsychoPy & in need of assistance.