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eduard

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eduard
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  • That's weird. Well anyway, here it is again: https://osdoc.cogsci.nl/3.2/manual/structure/loop/#pseudorandomization
  • Hi Jonathan, I have the hunch , the automatic ROI definition is not compatible with correct_response definition. So, in order to do provide feedback, you first need to do some computing. The attached experiment includes code to do that. Let me kno…
  • Hi Valentina, Identical response times would only make sense if the loudness was instantly exceeded or only after the timeout. I suppose this is not what happens? Anyway, the messages on the screen should not be the reason that you get weird effect…
  • Hi Jasper, This is not about whether Opensesame supports noise stim or not, but whether the version of Psychopy that is installed has this feature included. (When you import Psychopy and create a window like that, you bypass Opensesame's canvasses)…
  • Hi Kate, I can help, but can you please point me towards where exactly I can give you pointers? :) Eduard
  • Hi, In order to do this, you need to use inline (Python-based) coding. In particular, you can use pygame's (I believe psychopy also has this functionality, but I am not sure. Maybe check it), function that gets keypress and key releases. With this …
  • Hi, Yeah, Opensesame is only covering data collection, not data analysis. There are plenty software possibilities for data analysis. You can use JASP, python (pandas), R, Excel. I suggest you pick one of them and start a tutorial on how to analyze …
    in IAT Help Comment by eduard September 13
  • Hi Fabio, As far as I know, there is no "auto-segmentation" implemented in Opensesame. However, I believe with some Python coding, you should be able to segment words in a sentence and retrieve ROIs with a resonably low latency. Once you …
  • Hi, I am not an expert on video playback, so maybe I am not making sense here, but I think the only* way to accomplish this is to use OpenCV: https://osdoc.cogsci.nl/3.2/manual/stimuli/video/#opencv This is a python library that allows for plenty …
  • Hi Mikael, This sounds like the perfect example for advanced loop operations. The part on "constrain" should do the trick. Check out the documentation here: https://osdoc.cogsci.nl/3.2/manual/structure/loop/#pseudorandomization Let me…
  • Hi Mikael, I would be surprised if images would not be supported. Can you make sure that there are no typos when you include the image|? That also includes the file extension. Otherwise, can you upload your experiment. I could try to have a look. …
  • I see what you mean, but does it really matter? One way or another you would have to code something that other users shouldn't change. No?
  • Oh, sorry, now I see. Yes, what you suggest would be a perfectly fine solution. Just use the `run_if` field in the sequence tab to include the if statement. Good luck
  • Hi Yorgo, that depends what type of randomization you want. If you set order in entrainment to random (as you already do according to your sceenshot), you will get a basic randomization that should be fine. Or did I misunderstand your question? …
  • Hi Paula, This should give you a starting point for implementing your own back button. As long as you keep pressing back on the second form, you'll have to do both forms again. Once you hit anything other than back, the experiment continues. Goo…
  • Hi Maye, Adding videos to sketchpads does not work because sketchpads allow only stationary stimuli. I am not sure about the video plugins of Opensesame, but as far as I know adding stationary stimuli to them is not possible. According to this dis…
  • Hi, can you share the experiment? Maybe I can see what is going on, even without having a touchscreen... Eduard
  • Hi Bar, I close this discussion, as it is the same as your other one.
  • Hi Bar, Normally, one touch should be enough to select something. Can you double check that your sketchpad has set its duration to 0 instead of "keypress"? That would be a common mistake that would cause such a behavior. Eduard
  • Hi Andrew, I don't know how to bring back the toolbar, (I failed to reproduce the error), but you can still use the sequence and loop item, even if they are off screen. Just rightclick on experiment in the overview area and click on append item. Fr…
  • Hi Gergely, The normal approach is to have a lab computer at which participant are doing the task, that is inviting participants to your lab and record their data there is preferred. Providing instructions on how to install things and let them do t…
  • Hi, Did you use the mousetrap plugin? How did you define the ROIs? Maybe you can share your experiment with us? Eduard
  • HI Aslan, Sorry for the late reply. I changed a bit of the code. The main problem was that the image in the sketchpad was not found. This should be fixed now. However, I don't have a joystick to test whether the experiment does what it is supposed…
  • Hi, There is a way to make it work the way it is supposed to work (similar to your approach), but I don't remember what exactly it was. An alternative to bypass the problem is to precompute the value and only then change the coordinates. http://fo…
  • Hi, The problem is that you dont have a row in your loop table. If you just add one line (doesnt really matter with what), the experiment will run. With the current implementation, Opensesame is repeating 0 rows 20 times, which will yield 20 trial…
  • Hi, Do you want to present all images at the same time? Like a sketchpad with 30 small images on it? Or is it also alright if the images are presented sequentially? IN any case, what you want is to add each chosen image to a list. Once you have the…
  • Hi Gabi, My guess is that there is some typo somewhere in the path that makes Opensesame not find the files. Maybe double check the filenames and also the paths. The logic you explained should work in theory. Eduard
  • Hi Radhika, How far did you get already? How do you want the swiping to look? I think the most straightforward solution is to make the position of the stimulus dependent on the currently touched position. The basic approach could look like this: m…
  • Hi Gérard, Yes, you can access sketchpad items in an inline_script. See here: https://osdoc.cogsci.nl/3.2/manual/stimuli/visual/#accessing-a-sketchpad-in-python Anyway, drawing all the stimuli in Python code is not that much more difficult. So, it s…
  • Hi Sabrina, A direct going-back-button is not implemented and not really possible in Opensesame. However, you might bypass the problem by restarting the first page upon clicking of a certain button. That approach is a bit hacky though and could hav…