# Blog

**URL:** https://discourse.psychopy.org/c/blog/16.md

[Latest](https://discourse.psychopy.org/latest.md) · [Categories](https://discourse.psychopy.org/categories.md) · [Tags](https://discourse.psychopy.org/tags.md)

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## [About the Blog category](https://discourse.psychopy.org/t/about-the-blog-category/17348)

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**Author:** [@jon](https://discourse.psychopy.org/u/jon)\
**Replies:** 0

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This is a new section (in 2020) of the forum for longer discussions that will hopefully remain relevant for long periods.

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## [Wakefield's Daily Tips](https://discourse.psychopy.org/t/wakefields-daily-tips/43371)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 123\
**Last updated:** [September 21, 2026, 2:27pm UTC](https://discourse.psychopy.org/t/wakefields-daily-tips/43371 "2026-09-21T14:27:52Z")

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Run the latest version of your experiment When you synchronise changes to your experiment, you may need to clear your browser cache to see those changes online (using Ctrl-Shift-R, Ctrl-F5, or equivalent). If this does n…

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## [Eye-tracking development for Pavlovia](https://discourse.psychopy.org/t/eye-tracking-development-for-pavlovia/14667)

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**Author:** [@Julia\_Landsiedel](https://discourse.psychopy.org/u/Julia_Landsiedel)\
**Replies:** 78\
**Last updated:** [September 7, 2026, 7:08am UTC](https://discourse.psychopy.org/t/eye-tracking-development-for-pavlovia/14667 "2026-09-07T07:08:00Z")

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Hi all, I was wondering whether there are any plans to develop eye-tracking for online experiments. There is existing open-source web-based eye-tracking Javascript code: WebGazer.js: Democratizing Webcam Eye Tracking o…

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## [Validating AI-Drafted Visual Stimuli Before They Enter a PsychoPy Study](https://discourse.psychopy.org/t/validating-ai-drafted-visual-stimuli-before-they-enter-a-psychopy-study/47582)

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**Author:** [@Martyn\_Foster](https://discourse.psychopy.org/u/Martyn_Foster)\
**Replies:** 1\
**Last updated:** [July 28, 2026, 11:28am UTC](https://discourse.psychopy.org/t/validating-ai-drafted-visual-stimuli-before-they-enter-a-psychopy-study/47582 "2026-07-28T11:28:24Z")

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Generative image tools are increasingly used to draft visual stimuli for cognitive and perceptual experiments—mood boards, placeholder scenes, sketch-guided mockups, or quick variants of a stimulus set. Before any of the…

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## [Sending markers to EEG through serial port](https://discourse.psychopy.org/t/sending-markers-to-eeg-through-serial-port/5311)

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**Author:** [@louroprata](https://discourse.psychopy.org/u/louroprata)\
**Replies:** 14\
**Last updated:** [May 23, 2026, 3:54pm UTC](https://discourse.psychopy.org/t/sending-markers-to-eeg-through-serial-port/5311 "2026-05-23T15:54:06Z")

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Hi I am stuck with a problem related with sending triggers through serial port and I would be truly grateful if anyone could give any help / advice: OS : Win 10 PsychoPy version : 1.90.1 What are you trying to achiev…

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## [HP 255 G10 laptop compatibility issues](https://discourse.psychopy.org/t/hp-255-g10-laptop-compatibility-issues/46095)

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**Author:** [@asdfghjkl](https://discourse.psychopy.org/u/asdfghjkl)\
**Replies:** 1\
**Last updated:** [November 27, 2025, 5:12pm UTC](https://discourse.psychopy.org/t/hp-255-g10-laptop-compatibility-issues/46095 "2025-11-27T17:12:54Z")

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Hi! I’m looking to buy laptop to run Psychopy experiments on. Does anyone know of any compatibility issues of the HP 255 G10 model with the below specifications? AMD Ryzen 5 7535U 8 + 8 GB RAM 512 GB SSD AMD Radeon 6…

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## [Gamma calibration error (using monitor center)](https://discourse.psychopy.org/t/gamma-calibration-error-using-monitor-center/45022)

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**Author:** [@Yuval\_Even\_Zahav](https://discourse.psychopy.org/u/Yuval_Even_Zahav)\
**Replies:** 3\
**Last updated:** [July 8, 2025, 3:47pm UTC](https://discourse.psychopy.org/t/gamma-calibration-error-using-monitor-center/45022 "2025-07-08T15:47:00Z")

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Hey, I am trying to do manual grayscale gamma calibration using the monitor center. I keep getting this error message: Does anyone know how to solve it? Does anyone know another way to do a manual gamma calibrati…

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## [Wakefield's Daily Tips - Index](https://discourse.psychopy.org/t/wakefields-daily-tips-index/43722)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 0\
**Last updated:** [February 3, 2025, 9:38am UTC](https://discourse.psychopy.org/t/wakefields-daily-tips-index/43722 "2025-02-03T09:38:16Z")

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Here is an index of the posts in my daily tips thread, grouped into topics. I will edit this post as I add the tips. Fundamentals Builder isn’t Coder Data filenames Experiment Settings Filtering components Pilot mode P…

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## [PsychoPy Python to Javascript crib sheet](https://discourse.psychopy.org/t/psychopy-python-to-javascript-crib-sheet/14601)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 23\
**Last updated:** [June 17, 2025, 4:51pm UTC](https://discourse.psychopy.org/t/psychopy-python-to-javascript-crib-sheet/14601 "2025-06-17T16:51:36Z")

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Many people come to this forum because their experiment works fine locally but doesn’t work online. The reason is that the Python code needs to be translated to Javascript and the auto translate that was added to PsychoP…

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## [Colour schemes for colour-blind participants](https://discourse.psychopy.org/t/colour-schemes-for-colour-blind-participants/42994)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 0\
**Last updated:** [November 20, 2024, 3:40pm UTC](https://discourse.psychopy.org/t/colour-schemes-for-colour-blind-participants/42994 "2024-11-20T15:40:23Z")

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I’ve created a Google sheet which allows the creation of colour lists more suitable for colour-blind participants than the standard primary colours one might use. The reference for the colours is Tol (2021). Tol, P. …

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## [Any VR application?](https://discourse.psychopy.org/t/any-vr-application/4325)

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**Author:** [@Takashi](https://discourse.psychopy.org/u/Takashi)\
**Replies:** 14\
**Last updated:** [March 27, 2025, 12:02pm UTC](https://discourse.psychopy.org/t/any-vr-application/4325 "2025-03-27T12:02:38Z")

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OS: Ubuntu 16.04 Psychopy version: 1.90 Anyone has tried Psychopy in a VR or AR environment? Where should I start? Any tutorial available? Thank you

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## [Embedded YouTube video success story](https://discourse.psychopy.org/t/embedded-youtube-video-success-story/14464)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 25\
**Last updated:** [November 19, 2024, 12:47pm UTC](https://discourse.psychopy.org/t/embedded-youtube-video-success-story/14464 "2024-11-19T12:47:14Z")

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Using code from Custom web component for online experiments: Forms, surveys, questionnaires, and other web-based content I have just tested the addition of an embedded YouTube video in a PsychoPy experiment. You can view…

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## [Visualisation of triggers sent through LSL on brain vision lsl viewer](https://discourse.psychopy.org/t/visualisation-of-triggers-sent-through-lsl-on-brain-vision-lsl-viewer/41544)

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**Author:** [@shruti](https://discourse.psychopy.org/u/shruti)\
**Replies:** 0\
**Last updated:** [September 25, 2024, 5:29pm UTC](https://discourse.psychopy.org/t/visualisation-of-triggers-sent-through-lsl-on-brain-vision-lsl-viewer/41544 "2024-09-25T17:29:22Z")

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I am able to send trigger markers from psychopy using LSL but could not visualise the triggers on the brain vision lsl viewer. Can anybody share the steps of how to fix this issue? Is it relatively straightforward using…

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## [Feedback plays incorrect sound for both images](https://discourse.psychopy.org/t/feedback-plays-incorrect-sound-for-both-images/38730)

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**Author:** [@sambalv](https://discourse.psychopy.org/u/sambalv)\
**Replies:** 0\
**Last updated:** [February 19, 2024, 11:24pm UTC](https://discourse.psychopy.org/t/feedback-plays-incorrect-sound-for-both-images/38730 "2024-02-19T23:24:51Z")

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Using PsychoPy version 2023.2.3 Hi, I’m struggling to get my code to work right. The task at hand is a training task where three images are displayed on the upper area of the screen and then two additional images appear…

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## [Installing PsychoPy on Linux (RHEL)](https://discourse.psychopy.org/t/installing-psychopy-on-linux-rhel/30537)

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**Author:** [@arnon\_weinberg](https://discourse.psychopy.org/u/arnon_weinberg)\
**Replies:** 1\
**Last updated:** [January 9, 2024, 2:56am UTC](https://discourse.psychopy.org/t/installing-psychopy-on-linux-rhel/30537 "2024-01-09T02:56:55Z")

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The official Linux installation documentation is woefully out of date. This is the process I used to install PsychoPy 2022.2.4 on AlmaLinux 9. The below should work on any RHEL 9 compatible distro (Rocky, CentOS, Fedo…

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## [Does PsychoPy have a voice recognition based instruction operating system that reduces mouse and keyboard input during experiments?](https://discourse.psychopy.org/t/does-psychopy-have-a-voice-recognition-based-instruction-operating-system-that-reduces-mouse-and-keyboard-input-during-experiments/37221)

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**Author:** [@okokyun](https://discourse.psychopy.org/u/okokyun)\
**Replies:** 1\
**Last updated:** [October 31, 2023, 12:25pm UTC](https://discourse.psychopy.org/t/does-psychopy-have-a-voice-recognition-based-instruction-operating-system-that-reduces-mouse-and-keyboard-input-during-experiments/37221 "2023-10-31T12:25:41Z")

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Does PsychoPy have a voice recognition based instruction operating system that reduces mouse and keyboard input during experiments? Can this voice-based interface improve operational efficiency in experiments and meet th…

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## [How to install PsychoPy 2022.2.4 on Ubuntu 22.04 using virtualenv](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-2-4-on-ubuntu-22-04-using-virtualenv/30125)

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**Author:** [@bastosfh](https://discourse.psychopy.org/u/bastosfh)\
**Replies:** 16\
**Last updated:** [October 5, 2023, 8:22pm UTC](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-2-4-on-ubuntu-22-04-using-virtualenv/30125 "2023-10-05T20:22:36Z")

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Here, I’ll show how to install PsychoPy in a virtual environment, so we can use python 3.8 instead of python 3.10 (which comes with Ubuntu 22.04), but in a “sandboxed” way, without touching python’s system install. Firs…

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## [Cannot open Psychopy 2023.1.2 on Ubuntu 22.04](https://discourse.psychopy.org/t/cannot-open-psychopy-2023-1-2-on-ubuntu-22-04/34717)

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**Author:** [@ferluna90](https://discourse.psychopy.org/u/ferluna90)\
**Replies:** 3\
**Last updated:** [May 11, 2023, 8:54am UTC](https://discourse.psychopy.org/t/cannot-open-psychopy-2023-1-2-on-ubuntu-22-04/34717 "2023-05-11T08:54:30Z")

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Hi all, I followed the instructions on the website Installation — PsychoPy v2023.2.3 and could install Psychopy in Linux (Ubuntu 22.04.2 LTS, 64 bits, GNOME 42.5). However, I cannot open Psychopy yet. I have the followi…

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## [How to install PsychoPy on Ubuntu 21.10](https://discourse.psychopy.org/t/how-to-install-psychopy-on-ubuntu-21-10/26762)

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**Author:** [@bastosfh](https://discourse.psychopy.org/u/bastosfh)\
**Replies:** 6\
**Last updated:** [May 5, 2023, 1:40pm UTC](https://discourse.psychopy.org/t/how-to-install-psychopy-on-ubuntu-21-10/26762 "2023-05-05T13:40:27Z")

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Hi everyone, I’ve found some time to play with the installation of PsychoPy in Ubuntu 21.10 and, as it went well, I thought someone else could need this. Hopefully, this set of instructions will also work with Ubuntu 22…

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## [PsychoPy Online Demos](https://discourse.psychopy.org/t/psychopy-online-demos/22319)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 10\
**Last updated:** [May 4, 2023, 8:19pm UTC](https://discourse.psychopy.org/t/psychopy-online-demos/22319 "2023-05-04T20:19:10Z")

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If you have routines or experiments that are likely to be useful to others, please create a post in this thread, editing your post to add new demos so there is one post per creator. Ideally set your demos so they can be …

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## [How to install PsychoPy 2022.1.4 on Ubuntu 22.04](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-1-4-on-ubuntu-22-04/29450)

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**Author:** [@bastosfh](https://discourse.psychopy.org/u/bastosfh)\
**Replies:** 13\
**Last updated:** [March 30, 2023, 12:31am UTC](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-1-4-on-ubuntu-22-04/29450 "2023-03-30T00:31:16Z")

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Hi everyone, Ubuntu 22.04 comes with Python 3.10 and I could not - for the life of me - make it work with PsychoPy 2022.1.4. So, the “solution” I found was to install Python 3.9, since they seem to like each other. Fir…

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## [Erasing Brush Drawings](https://discourse.psychopy.org/t/erasing-brush-drawings/33601)

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**Author:** [@Hatice\_Dedetas](https://discourse.psychopy.org/u/Hatice_Dedetas)\
**Replies:** 0\
**Last updated:** [March 2, 2023, 11:09am UTC](https://discourse.psychopy.org/t/erasing-brush-drawings/33601 "2023-03-02T11:09:46Z")

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Dear all, I want to collect data with the brush component in which participants will draw on an image. I also want them to have a chance to erase their drawing if needed. The erase option I found is changing the color o…

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## [How to install Psychopy 2022.2.5 on Ubuntu 22.10](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-2-5-on-ubuntu-22-10/32765)

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**Author:** [@bastosfh](https://discourse.psychopy.org/u/bastosfh)\
**Replies:** 0\
**Last updated:** [January 12, 2023, 7:37pm UTC](https://discourse.psychopy.org/t/how-to-install-psychopy-2022-2-5-on-ubuntu-22-10/32765 "2023-01-12T19:37:15Z")

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Perhaps I should start by saying that I would not recommend setting up a computer to run experiments in a non-LTS release of Ubuntu, since you get less time of support and need to upgrade it more often (which may break t…

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## [Summarise Data tool](https://discourse.psychopy.org/t/summarise-data-tool/28532)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 0\
**Last updated:** [April 10, 2022, 2:11pm UTC](https://discourse.psychopy.org/t/summarise-data-tool/28532 "2022-04-10T14:11:07Z")

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Way back in February 2020, just before running studies online became a priority, I’d finally got around to working on a data summary tool. Last week I finally went back to it and the beta version is ready for testing. …

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## [Demo: Using an external Custom-JSON-Config-File for convenient parameterization of experiments (Online/Offline)](https://discourse.psychopy.org/t/demo-using-an-external-custom-json-config-file-for-convenient-parameterization-of-experiments-online-offline/27917)

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**Author:** [@Luke](https://discourse.psychopy.org/u/Luke)\
**Replies:** 0\
**Last updated:** [March 11, 2022, 10:21am UTC](https://discourse.psychopy.org/t/demo-using-an-external-custom-json-config-file-for-convenient-parameterization-of-experiments-online-offline/27917 "2022-03-11T10:21:56Z")

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Hi all, I wanted to share a small convenience code example to allow an external parameterization of online and offline experiments by using an JSON-File. You can use this JSON-File to avoid regeneration of Py/JS-Files t…

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## [Library of published PsychoPy experiments](https://discourse.psychopy.org/t/library-of-published-psychopy-experiments/27226)

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**Author:** [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Replies:** 1\
**Last updated:** [February 6, 2022, 9:12am UTC](https://discourse.psychopy.org/t/library-of-published-psychopy-experiments/27226 "2022-02-06T09:12:04Z")

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If you have a PsychoPy experiment that you are happy to share which has been used for a publication, please could you add details to this thread? Please include the full reference for the publication, the abstract, a se…

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## [Custom web component for online experiments: Forms, surveys, questionnaires, and other web-based content](https://discourse.psychopy.org/t/custom-web-component-for-online-experiments-forms-surveys-questionnaires-and-other-web-based-content/14423)

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**Author:** [@arnon\_weinberg](https://discourse.psychopy.org/u/arnon_weinberg)\
**Replies:** 33\
**Last updated:** [July 2, 2021, 12:25am UTC](https://discourse.psychopy.org/t/custom-web-component-for-online-experiments-forms-surveys-questionnaires-and-other-web-based-content/14423 "2021-07-02T00:25:26Z")

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While Pavlovia/PsychoJS is seeing increased interest recently, some of PsychoPy’s components have not yet been implemented online. Additionally, there may always be an interest in custom components for online experiment…

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## [Variables empty in online script (looping over dictionaries)](https://discourse.psychopy.org/t/variables-empty-in-online-script-looping-over-dictionaries/14137)

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**Author:** [@aisa2](https://discourse.psychopy.org/u/aisa2)\
**Replies:** 22\
**Last updated:** [February 22, 2021, 5:16pm UTC](https://discourse.psychopy.org/t/variables-empty-in-online-script-looping-over-dictionaries/14137 "2021-02-22T17:16:19Z")

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Description of the problem: I have an experiment, working in builder, which I am trying to transfer to Pavlovia. I am using importConditions to read in a csv file (see this thread for the backstory), but it seemed from …

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## [On improving Equality, Diversity and Inclusivity (EDI) in our community](https://discourse.psychopy.org/t/on-improving-equality-diversity-and-inclusivity-edi-in-our-community/18356)

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**Author:** [@jon](https://discourse.psychopy.org/u/jon)\
**Replies:** 5\
**Last updated:** [February 16, 2021, 10:25am UTC](https://discourse.psychopy.org/t/on-improving-equality-diversity-and-inclusivity-edi-in-our-community/18356 "2021-02-16T10:25:50Z")

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I recently read an excellent article in The Psychologist on Bropen Science is Broken Science. It points out that the Open Science and Open Source Software movements, which you would hope might be more diverse and inclusi…

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## [The timing mega-study (2020)](https://discourse.psychopy.org/t/the-timing-mega-study-2020/10660)

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**Author:** [@jon](https://discourse.psychopy.org/u/jon)\
**Replies:** 9\
**Last updated:** [July 20, 2020, 3:54pm UTC](https://discourse.psychopy.org/t/the-timing-mega-study-2020/10660 "2020-07-20T15:54:30Z")

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Timing mega-study: comparing a range of experiment generators, both lab-based and online You can finally see the preprint of our long-awaited timing study at psyarxiv.com/d6nu5/ and view the data at https://psychopy.org/…

[Next page](https://discourse.psychopy.org/c/blog/16.md?page=1)