# \#eyetracking **URL:** https://mne.discourse.group/tag/eyetracking/103.md [Latest](https://mne.discourse.group/latest.md) · [Categories](https://mne.discourse.group/categories.md) · [Tags](https://mne.discourse.group/tags.md) --- ## [BIDS: Eye tracking files with MEG data](https://mne.discourse.group/t/bids-eye-tracking-files-with-meg-data/11963)
**Author:** [@jstout211](https://mne.discourse.group/u/jstout211)\ **Replies:** 3\ **Last updated:** [September 30, 2026, 8:51pm UTC](https://mne.discourse.group/t/bids-eye-tracking-files-with-meg-data/11963 "2026-09-30T20:51:34Z")
Hi All, What is the best BIDS compatible practice for incorporating eyelink eyetracking data with MEG data (specifically CTF .ds datasets/folder). We are posting some data on openneuro as part of the NIMH\_HV protocol, … --- ## [Which way is up after using mne.preprocessing.eyetracking.convert\_units to convert screen coordinates?](https://mne.discourse.group/t/which-way-is-up-after-using-mne-preprocessing-eyetracking-convert-units-to-convert-screen-coordinates/11844)
**Author:** [@Cathaway](https://mne.discourse.group/u/Cathaway)\ **Replies:** 1\ **Last updated:** [May 28, 2026, 3:14pm UTC](https://mne.discourse.group/t/which-way-is-up-after-using-mne-preprocessing-eyetracking-convert-units-to-convert-screen-coordinates/11844 "2026-05-28T15:14:30Z")
We know that EyeLink trackers defaults to setting (0, 0) as the top left corner of screen, with positive Y values referring to areas below it and MNE defaults to using screen centre as (0, 0), but what about the Y-axis … --- ## [Issues in loading and visualising the calibration data in EyeLink .asc files](https://mne.discourse.group/t/issues-in-loading-and-visualising-the-calibration-data-in-eyelink-asc-files/11510)
**Author:** [@martalp](https://mne.discourse.group/u/martalp)\ **Replies:** 8\ **Last updated:** [May 21, 2026, 4:11pm UTC](https://mne.discourse.group/t/issues-in-loading-and-visualising-the-calibration-data-in-eyelink-asc-files/11510 "2026-05-21T16:11:29Z")
Platform Windows-11-10.0.26100-SP0 Python 3.13.5 Core mne 1.10.1 (latest release) numpy 2.1.3 (MKL 2023.1-Product with 14 threads) scipy 1.15.3 matplotl… --- ## [1-year Engineer position in Paris for portable eeg and physio devices with LSL](https://mne.discourse.group/t/1-year-engineer-position-in-paris-for-portable-eeg-and-physio-devices-with-lsl/11836)
**Author:** [@kdoelling](https://mne.discourse.group/u/kdoelling)\ **Replies:** 0\ **Last updated:** [May 19, 2026, 10:46am UTC](https://mne.discourse.group/t/1-year-engineer-position-in-paris-for-portable-eeg-and-physio-devices-with-lsl/11836 "2026-05-19T10:46:17Z")
Feel like spending some time in Paris? Have experience with portable eeg systems, eyetrackers and physiological recording devices? Come help a consortium of universities in the Ile-de-France region setup new portable neu… --- ## [Just a little bit of code refactor](https://mne.discourse.group/t/just-a-little-bit-of-code-refactor/11667)
**Author:** [@1himan](https://mne.discourse.group/u/1himan)\ **Replies:** 1\ **Last updated:** [January 20, 2026, 10:19am UTC](https://mne.discourse.group/t/just-a-little-bit-of-code-refactor/11667 "2026-01-20T10:19:52Z")
Could that be refactored to - loc = np.full(12, np.nan) ? --- ## [Dealing with NaNs and missing data in pupil and eyetracking data](https://mne.discourse.group/t/dealing-with-nans-and-missing-data-in-pupil-and-eyetracking-data/11470)
**Author:** [@aabielefeldt](https://mne.discourse.group/u/aabielefeldt)\ **Replies:** 0\ **Last updated:** [September 3, 2025, 9:30am UTC](https://mne.discourse.group/t/dealing-with-nans-and-missing-data-in-pupil-and-eyetracking-data/11470 "2025-09-03T09:30:44Z")
Hello dear Forum, this has been probably a bit too long coming therefore apologies for this post being so long. I saw in an 2023 post by @scott-huberty that the issue of NaNs in eyetracking data had been raised, but co… --- ## [Epoching eyetracking data caused pupil data to be NaN'd](https://mne.discourse.group/t/epoching-eyetracking-data-caused-pupil-data-to-be-nand/11433)
**Author:** [@Cathaway](https://mne.discourse.group/u/Cathaway)\ **Replies:** 1\ **Last updated:** [August 15, 2025, 5:29pm UTC](https://mne.discourse.group/t/epoching-eyetracking-data-caused-pupil-data-to-be-nand/11433 "2025-08-15T17:29:37Z")
System setup: Platform Windows-10-10.0.19045-SP0 Python 3.13.5 | packaged by conda-forge | (main, Jun 16 2025, 08:20:19) \[MSC v.1943 64 bit (AMD64)\] Executable A:\\Subjects\\anaconda\\en… --- ## [ValueError read\_raw\_eyelink missing channel name in annotations](https://mne.discourse.group/t/valueerror-read-raw-eyelink-missing-channel-name-in-annotations/10846)
**Author:** [@MargotSteijger](https://mne.discourse.group/u/MargotSteijger)\ **Replies:** 6\ **Last updated:** [February 26, 2025, 3:41pm UTC](https://mne.discourse.group/t/valueerror-read-raw-eyelink-missing-channel-name-in-annotations/10846 "2025-02-26T15:41:16Z")
Hi, I recently started using the mne toolbox for the preprocessing of my Eyelink pupil data and for most files this works fantastically, but I have a few files where the read\_raw\_eyelink function gives me the following … --- ## [Upcoming NIH Workshop: Insights Into Cognitive And Neural Function Through Eye Tracking](https://mne.discourse.group/t/upcoming-nih-workshop-insights-into-cognitive-and-neural-function-through-eye-tracking/9224)
**Author:** [@pmolfese](https://mne.discourse.group/u/pmolfese)\ **Replies:** 1\ **Last updated:** [August 16, 2024, 8:00pm UTC](https://mne.discourse.group/t/upcoming-nih-workshop-insights-into-cognitive-and-neural-function-through-eye-tracking/9224 "2024-08-16T20:00:30Z")
The Center for Multimodal Neuroimaging (CMN; cmn.nimh.nih.gov) and the fMRI Core Facility (FMRIF; fmrif.nimh.nih.gov) are proud to announce our upcoming workshop September 4-5 on “Insights Into Cognitive And Neural Funct… --- ## [mne.io.read\_raw\_eyelink failure: "adjust times" sub-function does not work/can't merge](https://mne.discourse.group/t/mne-io-read-raw-eyelink-failure-adjust-times-sub-function-does-not-work-cant-merge/9012)
**Author:** [@LinaTeichmann1](https://mne.discourse.group/u/LinaTeichmann1)\ **Replies:** 7\ **Last updated:** [July 2, 2024, 4:18am UTC](https://mne.discourse.group/t/mne-io-read-raw-eyelink-failure-adjust-times-sub-function-does-not-work-cant-merge/9012 "2024-07-02T04:18:18Z")
Hi there, I am using the mne.io.read\_raw\_eyelink function and am encountering an issue for some of my subjects where the adjust times sub function in utils throws an error. I am using: MNE version: 1.7.1 operating sys… --- ## [Problem reading binocular data with mne.io.read\_raw\_eyelink()](https://mne.discourse.group/t/problem-reading-binocular-data-with-mne-io-read-raw-eyelink/8555)
**Author:** [@inespontsanc](https://mne.discourse.group/u/inespontsanc)\ **Replies:** 3\ **Last updated:** [March 26, 2024, 4:52pm UTC](https://mne.discourse.group/t/problem-reading-binocular-data-with-mne-io-read-raw-eyelink/8555 "2024-03-26T16:52:40Z")
Hello, I am having trouble reading eyelink data using mne.io.read\_raw\_eyelink() and SR Research’s edf2asc converter from python (running terminal commands). In order to convert the eyelink .edf file to .asc, I use the … --- ## [mne.viz.plot\_compare\_evokeds for eyetracking](https://mne.discourse.group/t/mne-viz-plot-compare-evokeds-for-eyetracking/7816)
**Author:** [@dizor](https://mne.discourse.group/u/dizor)\ **Replies:** 6\ **Last updated:** [November 9, 2023, 8:33pm UTC](https://mne.discourse.group/t/mne-viz-plot-compare-evokeds-for-eyetracking/7816 "2023-11-09T20:33:18Z")
Hello all, I am trying to apply the 30\_epochs\_metadata.py tutorial to my eye tracking data. It is not the intended application, but I thought it could be useful and stumbled across a problem. Maybe it is of interest. M… --- ## [Issue with read\_raw\_eyelink()](https://mne.discourse.group/t/issue-with-read-raw-eyelink/7787)
**Author:** [@Lizzie](https://mne.discourse.group/u/Lizzie)\ **Replies:** 6\ **Last updated:** [November 6, 2023, 3:10pm UTC](https://mne.discourse.group/t/issue-with-read-raw-eyelink/7787 "2023-11-06T15:10:34Z")
Hi, I am using read\_raw\_eyelink() to import an .asc file: raw = read\_raw\_eyelink(fname) But I get the following error when running this line: --\> 125 if tokens\[0\]\[0\].isnumeric(): # Samples ref='~/anaconda3/envs/… --- ## [Reading eyelink data (\`.edf\`) --\> empty annotations](https://mne.discourse.group/t/reading-eyelink-data-edf-empty-annotations/7771)
**Author:** [@sappelhoff](https://mne.discourse.group/u/sappelhoff)\ **Replies:** 2\ **Last updated:** [November 1, 2023, 1:26pm UTC](https://mne.discourse.group/t/reading-eyelink-data-edf-empty-annotations/7771 "2023-11-01T13:26:19Z")
Hi all, and specifically @scott-huberty! In my lab, we produce eyelink data files (.edf, using SR Research eyelink eyetrackers). We send markers to the system using code like this: tk.sendMessage(f"{ord(byte)}") where… --- ## [Problem with read\_raw\_eyelink()](https://mne.discourse.group/t/problem-with-read-raw-eyelink/7243)
**Author:** [@DaniG](https://mne.discourse.group/u/DaniG)\ **Replies:** 12\ **Last updated:** [July 28, 2023, 3:41pm UTC](https://mne.discourse.group/t/problem-with-read-raw-eyelink/7243 "2023-07-28T15:41:41Z")
Hello, I am trying to import an .asc file using read\_raw\_eyelink(): raw = read\_raw\_eyelink(fname) However, I get the following error: Loading /Users/dani/Desktop/test.asc Pixel coordinate data detected. Pass \`scaling… --- ## [eyetracking and qt browser: traces of x/y position disappear](https://mne.discourse.group/t/eyetracking-and-qt-browser-traces-of-x-y-position-disappear/7254)
**Author:** [@sappelhoff](https://mne.discourse.group/u/sappelhoff)\ **Replies:** 8\ **Last updated:** [July 19, 2023, 7:34pm UTC](https://mne.discourse.group/t/eyetracking-and-qt-browser-traces-of-x-y-position-disappear/7254 "2023-07-19T19:34:28Z")
MNE version: 1.4.2 operating system: Ubuntu 22.04 (but same issue on macOS) I am following the tutorial on reading eyetracking data: Importing Data from Eyetracking devices — MNE 1.5.1 documentation The first coding…