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eduard

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eduard
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  • Hi, log.write_vars() is a function to write multiple variables, if you just want to write a single variable, it still must be in a container (e.g. a list): log.write_vars(var_list = ['acc']) See here: https://osdoc.cogsci.nl/3.2/manual/python/log/#…
  • Hi, That is a weird error. Can you share the experiment here? Have you tried a different backend? Maybe psychopy? Eduard
  • HI SH, This variance is due to small variations in refresh rate, should be random are the variance is really small. So, I don't think you should worry about it. The fact that a response is recorded is first place is a bit weird. That is true. It ba…
  • Hi Inga, I am not sure whether advanced loop operations could also do the trick, but I would opt for an inline_script that takes care of the creation of the trial_sequence. For example following script: import random # zero represents 70% go, 1 re…
  • Hi, Without getting into the structure of the experiment, a way to check accuracy could be following: # first select the first half stimuli import random all_stim = [1,2,3,4,5,6,7,8] random.shuffle(all_stim) first_round_stim = all_stim[:4] # later…
  • Hi Laura, In between blocks you can put inline_scripts, that save the accuracy variables in other variables. These backup variables you can then use to present as feedback after each block. I attach the default template with modifications as exam…
  • Hi, Right, the plugins dont allow multiple videos per display. Instead you can try using the OpenCV library, it is much more flexible and powerful. https://osdoc.cogsci.nl/3.2/manual/stimuli/video/#opencv Good luck, Eduard
  • Hi Mikail, To help you we need more information. Could you share the experiment? Have you used forms in your experiment? If so, you probably accidentally deleted the default title from a form item. If you put some characters in there, the error sho…
  • Hi, Do you mean there is a delay between the screen with "Would you..." in the middle and "improve your chances" on the left and "reduce your chances" on the right and the feedback item that follows ("How would yo…
  • Hi Laurie, I don't work with that plugin or Macs, so, I can't really help. But maybe one of these discussions might: https://forum.cogsci.nl/discussion/2640/troubles-with-media-player-mpy-unable-to-download-ffmpeg-osx You could also try to not use…
  • Hi, If you use tkinter, you basically replace the default window that Opensesame creates when starting the experiment. While certainly possible to do so, it is not necessary. Instead you can just use Opensesame default functions, like a canvas, etc.…
  • Hi Jeronimo, Conceptually, Pygaze doesn't care where the camera is, but it has implementations of a limited number of eye trackers. If the eye tracker that you use is not in that list, you won't be able to use Pygaze to record your eye tracking dat…
  • Hi Adi, There are a number of slider implementations on the forum. If you browse a little you will certainly find something that will help you. I would probably opt for showing everything as an image, and just present a circle on top of it, depend…
  • Well, you have first a feedback item in your sequence, followed by a sketchpad item. The first one has a duration of 5000, the second of 0. Only after that there is a response item. So, that would mean you have to wait for that amount of time before…
  • Hi, As mentioned, using feedback items instead of sketchpads does the trick. As an example, I changed the first sketchpad (If_Left_1) to a feedback item. Once changed it does work. Attached the experiment. [response] = 'z','x','v' This is not val…
  • Hi Lena, I don't see a reason why two keypresses should be required from your script. Could you share the entire experiment with us? Don't forget to include the xlsx file. Thanks, Eduard
  • Hi, If the response is going to be used to indicate whether a sketchpad will be called or not, you should use the run_if field of that sketchpad (you can access if you click on the sequence in the overview area. Then all the items of that sequence …
  • Hi, Try to use a feedback item instead of a sketchpad. The difference between them is whether they are being drawn in the prepare or the run phase. See here for more info: https://osdoc.cogsci.nl/3.2/manual/prepare-run/ Eduard
  • Hi Gerard, It should work, but it doesn't always. @sebastiaan might be able to provide you with more information on why this is. For now, maybe try a different file type? Eduard
  • Hi Lea, Could you post the complete error message? Alternatively, could you simplify or shorten your experiment in a way that I could give it a quick test run that doesn't take very long? Right now it looks like that I would be busy for a quite a w…
  • Hi Kayleigh, I will close this discussion here as it appears to be the same question that i have already answered to in another discussion. Please try to not post the same question multiple times. This makes the forum somewhat messy. Thanks, eduard
  • Hi, I am not an expert on the mousetrap plugin, but I think if you don't have named objects on a sketchpad, you can't use the cursor_roi. @Pascal can you give us some insight here? Eduard
  • Hi, Yes that is possible. In fact it is a very often implemented experiment and rather easy to do. To get started I would recommend though, that you start with the beginner's tutorial: https://osdoc.cogsci.nl/3.2/tutorials/beginner/ This should gi…
  • Hi Omer, As you use psychopy directly, this question is more appropriate to ask on the psychopy forum: https://discourse.psychopy.org/ I don't know how exactly this works, but if dotstim really access the refresh rate directly to decide when to up…
  • Hi, Yes, there are! See here: https://osdoc.cogsci.nl/3.2/tutorials/beginner/ https://python.cogsci.nl/ If you go to osdoc.cogsci.nl, and click on the tutorials tab, you'll get an even longer lists with tutorials. Good luck Eduard
  • Hi Ioli, Can you provide more details on what you did? maybe providing screenshots and/or uploading the experiment. Thanks, Eduard
  • Hi Kayleigh, The error message suggests that at least one of your files has an invalid filename? Did you check whether this is the case? If not, it still would be nice to see the part of your experiment in which you present the images (I suppose th…
  • Hi Lena, What exactly is your problem? To present instructions in a piecemeal fashion, you just need multiple sketchpads (or multiple text widgets in a single sketchpad), and set the duration to keypress. No need for any timing information. Does t…
  • Hi Mgade, Use [correct]=0 or [correct]=1 in the run if field of the feedback item in the sequence table and for all other items that are only shown in one of the two scenarios. To log all the responses, you should add an _inline_script after the fi…
  • Hi, Not sure about that, but you can modify the calibration targets that are shown on the screen. A way to do it is described here: https://forum.cogsci.nl/discussion/3804/child-friendly-calibration-eyelink Does that help? Eduard