sebastiaan
About
- Username
- sebastiaan
- Joined
- Visits
- 7,303
- Last Active
- Roles
- Administrator
Comments
-
Great! =D>
-
(Quote) The log-files are in comma-separated format, which you can open in all commonly used spreadsheet. For Excel, see: * http://office.microsoft.com/en-001/excel-help/import-or-export-text-txt-or-csv-files-HP010099725.aspx Also, you can use the…
-
(Quote) I've never done this, but assuming that processing load scales up linearly with framerate, I actually think it should be possible. I did most of the Mantra validation stuff on a 1.6 Ghz intel atom netbook! The timecritical part of Mantra has…
-
Discussion appears to have moved to: * http://www.cogsci.nl/forum/index.php?p=/discussion/384/opensesame-0-27-1-for-os-x-available
-
(Quote) Yes, you would have three separate programs running (two servers and one "synchronization script"), but that can easily be done on a single (reasonably modern) computer. Cameras have names such as /dev/video0, which you can use to …
-
Hi Jakub, (Quote) No, one instance is tied to one specific camera. (Quote) This should be possible, yes. The timestamps in the logfile are in milliseconds from the moment of initialization. By themselves, these are not suitable for synchronization…
-
Hi Frank, PyGame (which is used by OpenSesame) requires an audio card (even when you don't actually use audio), so chances are that the computer either doesn't have an audio card at all, or the audio drivers don't work properly. In the first case t…
-
Hi Emme, There is a detailed tutorial available here: * http://osdoc.cogsci.nl/usage/step-by-step-tutorial/ It should provide you with the basic knowledge necessary to build a simple priming experiment in OpenSesame. Cheers, Sebastiaan
-
Thank you, and good luck with your studies!
-
(Quote) Do I understand correctly that you want to randomly select one row from a loop table? You can do this by setting repeat to a value smaller than 1. Say that you have 10 cycles, and set repeat to 0.1, then only 1 cycle (=row) will be executed.…
-
Hi Luke, Great that you managed to get this far! If you have information to add for the triggers page, please don't hesitate to post (or add directly). (Quote) Could it be that you have placed the code in the prepare phase of the inline_script ite…
-
I figured you were frustrated, and of course I can understand that (I don't wish E-Prime on anybody). Please don't hesitate to post further questions after you have done the tutorial. You will find the forum more welcoming than it might seem now!
-
Hi Michel, Thanks for pointing this out. I added it to an existing (very similar) issue: * https://github.com/smathot/OpenSesame/issues/159 Cheers! Sebastiaan
-
Hi, I'm sorry to hear about your problems with E-Prime. However, I'm afraid that this post will not get you the answers that you need, because essentially you're asking someone to build the experiment for you. The 'few pointers' that you mention, a…
-
Hi Floor, By default, OpenSesame uses a sampling frequency of 48 Khz, and doesn't automatically resample files with a different sampling rate. If, for example, your file has a sampling rate of 44.1 Khz, you will need to pitch it down by a factor of…
-
Hi Martine, Interesting structure! There are few things here. The first is that you use a [correct] = 1 break-if statement. This makes sense, but it does require that correct is set back to 0 before you start the trial sequence again. Otherwise the…
-
When you insert an advanced_delay, the experiment simply pauses for the duration of the delay. You won't be able to do anything in parallel, such as recording participant responses. In your case, you will need to implement your own custom text inpu…
-
(Quote) The example that I posted does not restart by itself, so this must be a consequence of your experiment structure. Perhaps you could post a screenshot of your overview area? (Quote) As Edwin points out, if you have added the slider to a diff…
-
The loop item does random sampling without replacement. For example, if you have a loop table like this ... (Image) ... every number between 1 and 10 will appear exactly once. If this is not what you have in mind, could you please be a bit more s…
-
Hi Martine, (Quote) Right, then I understood correctly. Perhaps you can first try my suggestion (which should do exactly this!) and if you get stuck please post what you have and we take it from there. (Quote) Could you perhaps post the script for…
-
I'm afraid that forms do not currently support a timeout value. However, you may want to take a look at this discussion: * http://forum.cogsci.nl/index.php?p=/discussion/350/solved-fixed-time-for-open-questions/p1 PS. Please post a question only o…
-
Hi Alex, Ah, I initially missed that you had multiple text inputs on one screen. I can see how that can be really slow. I'm afraid I don't have any better solution than splitting the form across multiple screens, as you did. The reason that forms …
-
Hi Ineke, OpenSesame experiments are platform independent, but they do require that all plug-ins used by the experiments are installed on the system. In your case, the questionnaire plug-ins are probably missing: * http://osdoc.cogsci.nl/plug-ins/…
-
Well, a few days and a few benchmarks later: http://www.cogsci.nl/blog/miscellaneous/216-running-psychological-experiments-on-a-raspberry-pi-with-opensesame
-
Hi Alex, Did you try switching to a different back-end and changing the back-end settings, as described here? * http://osdoc.cogsci.nl/forms/performance-issues-and-troubleshooting/ It's true that forms can be really slow, but given the optimal ba…
-
Hi Martine, I'm not sure I understand your question. Do you want to have a single block_loop, which can run a number of different trial sequences? If so, you could create a number of different trial sequences, say trial_sequence1, and trial_sequen…
-
Hi Sophia, If you are not interested in the trajectory of the mouse, it would be easier to use forms with image_button widgets. But since you generally are interested in the trajectory in the visual world paradigm (?), let's see how you can prevent…
-
Great! Good luck with your experiment.
-
(Quote) Great! I added it to the list. (Quote) I think these modules are indeed your best bet, the stackoverflow approach seems a bit more complex than necessary. Regarding the name resolution error: Are you trying to connect to computers on your l…
-
(Quote) I guess this illustrates how variable these things are. My personal experience is also more like this: Expyriment is faster and more stable than PsychoPy. Still, the poll suggests that most people feel otherwise. In case anybody is intereste…