Touch responses wrong when cursor not showing with Xpyriment, crashes with PsychoPy

Comments

• eduard

  August 2018

  Hi bal,

  Do you have an error message for us? Maybe you could also upload your experiment. Without having a little more detail it is hard to help you (unless of course someone run into the same issue before).

  Thanks,
  Eduard

  
• bal

  August 2018

  Hi Eduard,

  Thanks for offering to help.

  
  Here is a screenshot of the error message I get when I try to run it with PsychoPy. Not sure if this can tell us anything about what is going wrong?
• eduard

  August 2018

  Hi,

  Here a little excerpt from the documentation:

  function Mouse.get_click_release(**resp_args)
  New in v3.2.0
  
  Collects a mouse-click release.
  
  Important: This function is currently not implemented for the psycho backend.
  

  So, psychopy is not really an option for you. We can try to fix what is wrong with expyriment, but then again, we need more details on the issue (see above)

  Eduard

  
• bal

  August 2018

  Thanks for your quick reply.
  I see, so I cannot use the key_release function with PsychoPy and I cannot use the touchscreen while hiding the cursor with Xpyriment. I would really like both of these functions in my experiment, as it is important for me to record the moment the participant releases a key as well as the correct coordinates that they touch on the screen. I need to hide the mouse because when it is not hidden it pops up on the screen and could be a distraction that could alter the RT data.
  I wonder if there is any other option in this case?
  I just thought about whether I could change the cursor to black, which would make it appear invisible in the experiment, but I just read these threads (thread1cogsci.nl/forum/index.php?p=/discussion/1634/open-inline-help-change-mouse-color-to-white thread2forum.cogsci.nl/index.php?p=/discussion/3499/changing-cursor-colour) and it seems that it is difficult to do that.
  I have attached my experiment in case you can find any other solution by looking at it.
  Thanks again for your help!
• eduard

  August 2018

  Hm, that is annoying. When I try the experiment myself, I don't see the cursor. So basically, it works like it should be. Which tablet are you working with and which operating system do you use?

  Eduard

  
• bal

  August 2018

  That is strange! I'm working with an ELO 2201L touchscreen monitor with Windows 7 (I think - I would need to double check the version of windows but I'm not at that computer right now).
• DahmSF

  August 2018 edited August 2018

  

  Hi bal,
  I was planning something similar with touchscreen, but have not tested the mouse(visible=False) on the touchscreen yet. Lifting the hand from the touchscreen does work!
  I'll upload part of my script. Maybe this piece of code can help you.

  By the way: If you set the cursor into the middle of your button, it should not distract very much. If you have, two buttons however... well...

  Greetings
  Stephan
• DahmSF

  August 2018 edited August 2018

  upload did not work...new try
• bal

  August 2018

  Thanks DahmSF. However I am not very good with code so I am struggling to see which part of your code might help me. I do indeed have more than one touch screen button, which makes things difficult!

  Since Eduard was able to run the experiment without the mouse appearing on his machine, I tried to run my experiment on another touch-screen laptop (with the same screen resolution), and the mouse does not appear, but now the experiment is not presenting properly in full screen, see photo:

  I'm not having much luck with this experiment! Is there anything else I can do to get the experiment to run on my original machine (Windows PC with touchscreen monitor) without the mouse showing? Any way I can change to cursor to black or something?