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On vacation until early September 2026 :sun:
While my last “vacation” was mostly working twice as hard, and wasting away employer mandated vacation days from last year, this time it will be a real vacation in a sunny country with beaches :beach_with_umbrella:, sea … |
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0 | 40 | June 15, 2026 |
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Action needed to save PsychToolbox
Dear colleague, PsychToolbox (PTB) was first released 30 years ago this year and remains one of the most widely used software packages for running behavioural experiments. It offers unrivalled cross-platform visual and … |
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0 | 825 | March 31, 2025 |
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Psychtoolbox Demos / Tutorials
Hi all. A while back I wrote a bunch of demos for PTB. These seemed to prove useful to folk, but thanks to Adobe I was for a long time not able to update my website. I also got a lectureship, so my time for doing coding… |
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36 | 4692 | August 6, 2025 |
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Posting guidelines
These are user-led forums (and most of us are busy doing our own research), so if you wish to stand the highest chance of getting a useful reply, please make sure you try to craft a clear descriptive post. If you are ne… |
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0 | 2079 | February 18, 2020 |
| Subscription Model Q&A |
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31 | 1903 | August 1, 2026 |
| License activation |
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1 | 49 | July 13, 2026 |
| Not using pageflips on recent AMD RDNA 4 gpu's on Ubuntu 24.04, Debian 13 |
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6 | 113 | June 11, 2026 |
| Screen GetImage |
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2 | 55 | May 19, 2026 |
| Quick fix for Mac Tahoe timing issues |
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18 | 348 | April 17, 2026 |
| Invalid MEX-file error on MATLAB |
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1 | 73 | April 3, 2026 |
| KbQueueCheck Documentation |
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7 | 99 | March 18, 2026 |
| Code check: Unusual reaction times (like less than 100 ms) for an AX-CPT task coded using PTB version 3.0.19 |
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1 | 54 | March 13, 2026 |
| Windows 11 Compatibility - requesting a statement to show IT |
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3 | 115 | March 4, 2026 |
| Eyelink calibration freeze in fullscreen on Apple Silicon Macs |
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3 | 152 | March 3, 2026 |
| VBL endline beamposition queries and audio timestamping issues 2 |
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4 | 99 | March 3, 2026 |
| Psychtoolbox 3.0.22.2 "The long long slog" :face_with_bags_under_eyes: |
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0 | 81 | March 2, 2026 |
| First stimulus in Psychtoolbox trial consistently ~30 ms shorter than expected when chaining flips with vbl |
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4 | 100 | February 15, 2026 |
| GStreamer x Windows 11 issue |
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3 | 122 | January 28, 2026 |
| Serial trigger to BrainVision TriggerBox stops working after OS upgrade (Windows 11)I |
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5 | 133 | January 27, 2026 |
| Timing / Performance issues on macOS 26 Tahoe |
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31 | 942 | December 21, 2025 |
| Psychtoolbox is on christmas vacation from now on. Also, don't upgrade to macOS Tahoe! :christmas_tree: |
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0 | 105 | December 21, 2025 |
| Cant install run Psychtoolbox in matlab |
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4 | 122 | December 21, 2025 |
| I am recieving a value of 10 for the screen number when I only have 2 screens |
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1 | 55 | December 12, 2025 |
| Compatibility Issues Between PTB and MATLAB Versions |
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1 | 81 | December 12, 2025 |
| Ac_compute_device_uuid's output is based on invalid pci bus info |
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2 | 109 | December 11, 2025 |
| Problems installing PTB on Linux |
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19 | 430 | November 13, 2025 |
| Frame sequential stereo with Volfoni glasses and VPIXX |
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2 | 85 | November 5, 2025 |
| Modern OLED displays for vision science |
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10 | 1152 | November 4, 2025 |
| Joystick driver |
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3 | 277 | October 27, 2025 |
| ASIO now dual licensed under GPLv3 |
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0 | 84 | October 22, 2025 |