sebastiaan
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Hi Wouter, The only situation in which I've seen this happening is when PsychoPy and PyGame functions are mixed. For example, calling the PsychoPy timing functions when using the legacy and xpyriment back-ends is relatively harmless, but for some r…
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Hi Michel, In what sense doesn't the script work? Does the experiment run way too slowly? In that case, as you already suggest, the problem is probably that your computer's video card isn't fast enough to generate the stimuli online. I'm not sure w…
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Hi Paolo, You can achieve this by closing the default logfile at the start of the experiment, providing a new name, and reopening the logfile. Of course, to determine the new name for the logfile, you need to use some logic to see which session-num…
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Hi Mike, The osexception class is only available in OpenSesame 2.8.0, i.e. the current development version. I added a small fix for backwards compatibility with earlier version of OpenSesame. To get this fix you should get the latest snapshot from …
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Hi Boris, An actual error message or description of what doesn't work would be helpful! ;) Cheers, Sebastiaan
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Hi Ben, (Quote) If you want to do (relatively) complex things with video, such as custom scaling and drawing additional things on top of the video surface, you're probably best of writing a custom script with opencv. This is not as difficult as it …
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Hi, Welcome to the forum! I'm guessing that you have set the duration of the sketchpad that contains the word to 'keypress' and have this sketchpad followed by a keyboard_response. Is that right? If you want the word to stay visible until the par…
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Hi Kevin, Just a quick tip: It seems like OpenSesame crashes when you launch the experiment, right? So not while working in the GUI? To avoid bringing the entire program down when this happens, you can select 'Run experiment in a different process'…
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Hi Johannes, This sounds like a problem with (de)initialization. Generally speaking, it is known that in some cases this causes trouble, which is actually why the 'Run experiments in a separate process' option exists. What exactly causes the issue …
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Hi Boris, The issue of pseudo-randomization has come up a few times before on this forum. There are some tools available to prepare a pseudo-random list beforehand, or you can use some scripting to accomplish this in OpenSesame. For relevant discu…
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Hi Asma, If I understand correctly, you want to have a dynamic stimulus display, in which five words move around the display for five seconds. At the same time, the participant can freely click anywhere on the display as many times as he/ she wants…
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Hi Elena, To play back video in OpenSesame, you require a plug-in. The two main plug-ins are the media_player_vlc and the newer media_player_gst, which differ primarily in the underlying library that is used for video playback. I don't believe that…
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(Quote) In principle, I would say that the contrast is defined as the difference in brightness between the two colors, and is unrelated to the overall brightness. So 10 and 12 would have the same contrast as 100 and 102. However, I suppose that thi…
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Hi Roni, This seems to be an error that results from non-Latin characters in your filename. However, this problem should be resolved (at least) as of version 0.27.4. Are you using an older version of OpenSesame? If yes, then updating should resolve…
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(Quote) Indeed, the script did not auto-apply changes, as it should. I more-or-less fixed this (I'll upload a new pre-release later today), but the result is that the script editor automatically closes. This will be improved upon with a later releas…
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Closing as duplicate of #729.
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Hi Roni, Could you please post the contents of opensesame.exe.log? That file will contain the actual error message. Cheers, Sebastiaan
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(Quote) When I wrote this, it slipped my mind that the software stack that is required for the media_player_gst is a bit too large to include by default. But if we manage to trim this down, we can include the media_player_gst by default.
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(Quote) You were running from source, right? I suspect that this is a bug that has already been resolved in the latest versions of PyQt4, because I cannot reproduce it. Does it happen as well when you use the latest pre-release package? (Quote) Yes…
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Hi Nadia, This message is presumably due to an error in the syntax of your OpenSesame script, and unrelated to the end-of-line bug discussed here. Would you mind opening a new discussion for this? Please include details about the error message, wha…
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(Quote) Right, I see. The text_display plug-in is in deprecated in favor of forms, but neither are really suitable for what you want to do. I would just use a sketchpad item to present the fixation cross and the word, because a sketchpad will allow …
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@dschreij (Quote) Hmm, that sounds like a Qt4 issue. I'll see if I can replicate it on my machine (which is also a 1366x768 laptop) and, if so, what can be done to fix this. Suggestions welcome! @drorgarbi (Quote) Thanks for pointing this font ou…
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Hi Dror, Thanks for the feedback! (Quote) Good point. I filed a feature request on this (#216). (Quote) The Hebrew (= Droid Sans Hebrew) font does indeed not contain Latin characters, but I would be open to replacing this font by one that does. I…
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Hi Daniel, Great work! Indeed, it works really well. When I package the next 2.8.0 pre-release, I'll include the media_player_gst plug-in as well. Cheers and merry Christmas, Sebastiaan
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Hi Isabel, In theory, the size of a Gabor patch is infinite: The contrast is high in the center and becomes progressively lower with increasing eccentricity--but never exactly zero. So you would typically specify the size of a Gabor patch by the st…
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Hi Kevin, Could you explain in more detail how you are presenting the fixation cross and word? Are you using a sketchpad, an inline_script, or something else, and do you have a code snippet to illustrate the problem? (Quote) This confused me a bit…
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A small tip: As of 2.8.0 it should no longer be necessary to flip strings around as Dror suggests (although it's in principle a fine solution). * http://osdoc.cogsci.nl/usage/text/#bi-directional-text-support Bi-directional-text support is new and…
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As of 2.8.0~pre11, the editor component now automatically validates your Python code using pyflakes. A convenient timesaver that notifies you of obvious typos, syntax errors, etc.: (Image) @drorgarbi (Quote) In quick run, OpenSesame simply creat…
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If I understand correctly what you want to do, it's not too hard. First, I would add a column to your loop table that indicates whether on a given trial the stimulus is a word or a picture. For example like so: (Image) Then you can use a Show-if…
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Hi Daniel, Ah, thanks for spotting that one. It should be fixed in the latest pre-release (currently pre8). I also included the updated media_player_vlc. Unless there are any real bugs that arise, I think I will wait for one major issue to be reso…