Sound files definition

Aris_Karg

I am building an experiment in which I would like to display simultaneous onset of sound files with two orthographic representations (one on the left and one on the right of the screen). Participants, based on what they heard, they have to choose via a button box one of the options to match the sound with the correct option. For this experiment I am struggling in the following:

1. How to make the task forced-choice?
2. On the table of the block loop I cannot find a way to define under my conditions the sound files (I have 2 experimental and 2 contol conditions)
3. Is it possible to measure response times from the onset of the stimuli until the choice?

Thanks in advance for any advice.

eduard

Hi Aris,

All of your questions are covered in the beginner's tutorial. How about to work through it and try to apply the info to your experiment?

Eduard

Aris_Karg

Screenshot 2023-12-04 at 3.28.44 PM.pdf

Screenshot 2023-12-04 at 3.29.03 PM.pdf

Screenshot 2023-12-04 at 3.28.11 PM.pdf

Hi!

I have watched the tutorial that you recommended several times, but still I have some issues in the aforementioned experiment. Here I attach a screenshot that may help understanding my problems with the task.

1. I think I have defined in the block loop the orthographic choices that will be presented simultaneous in the sketchpad but for some reason I get the message that you can see in the screenshot.
2. the button box I use is with two buttons and it also does not work although I think I have linked it with my variables (left choice button can be linked as 1 in the table loop while right choice button can linked as 2 in the table loop) .

I want to measure response times and judgments. Any advice on these problems?

Thanks in advance!

eduard

Hi Aris,

there is no error in your screenshots (the blue banners are expected). I think what happens is that you use Opensesame 4 (the latest release), but follow a tutorial based on Opensesame 3. Perhaps don't watch the video, but check out the written part: https://osdoc.cogsci.nl/4.0/tutorials/beginner/

Without more information on implementation I can't help more.

Eduard