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Gabriel Weindel

@gweindel.bsky.social
481 followers 397 following 149 posts

Psychologist studying human reaction times ( #MentalChronometry) with mathematical models of cognition & electrophysiology ( #EEG, #EMG, #MEG), fanboy of Franciscus Donders. Postdoc (he/him) @ Université de Lausanne, Switzerland gweindel.github.io

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Gabriel Weindel @gweindel.bsky.social · 28/09/2026
For those knowing the ERP Core dataset and the HMP method we developed, here is what applying the latter on the former gives! With single-trials estimates also of course :)
Figure 1A illustrates that HMP model as described in Weindel, van Maanen and Borst 2024. HMP assumes a sequence of neural events (i.e. topographies for EEG) that are recurring across trials from stimulus onset to response. An expectation maximisation algorithm is used to estimate the parameters (I.e. electrode contribution to each event and time distributions leading to each event from the preceding one) and the result is a probability of each event at any sample in the response time interval.
Figure 1B illustrates the application to 4 tasks from the ERP database by Kappenman et al. 2020. The oddball task shows the same sequence between frequent and rare except that in rare there is an additional event furiously resembling a P3. The Eriksen Flanker task shows the same sequence of 5 events except that in the incongruent condition the last two are shifted in time, suggesting conflict source in a late stage of the RT. The face discrimination task shows the same sequence across face stimuli vs other except a component around 170ms with a clear occipital negativity (N170!). Finally the word pair judgement task shows a clear frontal negativity at 400ms (N400!) As difference in the sequence between unrelated and related words.
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Guillaume Pech @guillaumepech.bsky.social · 19/09/2026
Just finished giving a first two-day workshop on eeg for newcomers. github.com/GuillaumePec... Super nice! I'll redo it. Also the opportunity to highlight the importance of pre-registration, and the desire to work on a paper to explain why almost (if not) all eeg studies are exploratory, for now.
github.com
GitHub - GuillaumePech/EEGWorkshop_BXLCuttingGarden: BXL Cutting Garden 2026 - Workshop
BXL Cutting Garden 2026 - Workshop. Contribute to GuillaumePech/EEGWorkshop_BXLCuttingGarden development by creating an account on GitHub.
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Simon Kelly @spk3lly.bsky.social · 18/09/2026
I'm fundraising for my kids' Gaelic sports club by tramping in the mountains and trying not to get lost... please help with a few quid if you can: www.idonate.ie/fundraiser/s...
idonate.ie
Support Simon Kelly's Camino fundraiser on iDonate.ie
Simon Kelly's Camino fundraiser for Naomh Olaf GAA, created by Simon Kelly | iDonate.ie
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Redmond O'Connell @redmondoconnell.bsky.social · 16/09/2026
We're hiring! Applications are invited for a 3-year postdoc position in the labs of Prof Mark Cunningham and @connelllab.bsky.social at the Trinity College Institute of Neuroscience as part of the MAP-IT project investigating the use of OPM-MEG to improve localisation of glioma-associated epilepsy
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CuttingEEG @cuttingeeg.bsky.social · 15/09/2026
🌱 #CuttingGardens 2026 in 6 Days! International M/EEG event cuttingeeg.org/cuttinggarde... 🌍 Can’t travel? No problem! Join the Global Program online: 1️⃣ Apply to #EEG101 before Sept. 18 → www.eeg101.eu/join/ 2️⃣ Accept your invite 3️⃣ Join online 🧠Let’s sync our international brain networks!
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Kianté @kiante.bsky.social · 09/09/2026
A few years ago at MathPsych @singmann.bsky.social and I spoke about making an update. Well here it is new rtdists live on CRAN!
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M.J. Crockett @mjcrockett.bsky.social · 07/09/2026
This summer I led a series of conversations in my lab about "AI" and our research. Some colleagues have shared "AI policies" for their labs and we discussed whether this would make sense for us. We decided it did not, and came up with a different approach. Please feel free to share & adapt!
zenodo.org
Crockett Lab Statement on AI and Scientific Research
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CuttingEEG @cuttingeeg.bsky.social · 24/08/2026
🇳🇱 Groningen, Netherlands #CuttingGardens2026 cuttingeeg.org/cuttinggarde... 🧠 Topics EEG Machine learning & open pipelines, Cognitive modelling: HMP & GAMMs BCI and stimulation 🎓 Tutorials EEG Analysis with MNE, UNFOLD Workshop, HMP Tutorial 🫶 Thank you Groningen Gardeners! 🫶
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Carina Forster @carinafo.bsky.social · 04/08/2026
Two paths to bias! We used neurally-informed drift diffusion models to pull apart explicit vs. implicit perceptual bias and found that pre-stimulus beta power mediates how the last choice biases the next, but only in stable probability environments, now published: 🔗 link.springer.com/article/10.1...
link.springer.com
Two Paths to Bias: Distinct Influences of Stimulus Probability and Previous Choice on Drift Diffusion Parameters - Computational Brain & Behavior
Perceptual decisions are shaped by prior information and choice history, yet their distinct computational implementations remain unclear. Here, we jointly model these sources of bias using hierarchica...
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Gidon Frischkorn @gidon-frischkorn.bsky.social · 09/06/2026
A new #bmm release is available on #CRAN. With this version, #bmm now covers basic response time models. This release contains three new models plus several usability features. Here's what's in it 🧵 venpopov.com/bmm/ #rstats #bayes #openscience
venpopov.com
Easy and Accessible Bayesian Measurement Models Using brms
Fit computational and measurement models using full Bayesian inference. The package provides a simple and accessible interface by translating complex domain-specific models into brms syntax, a powerfu...
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Redmond O'Connell @redmondoconnell.bsky.social · 28/05/2026
New PhD studentship available! Come join the excellent @neuromurphy.bsky.social lab for a very cool project exploring how the brain learns to make decisions that are not tied to specific sensory modalities or movements. In collaboration with @seanfw.bsky.social and myself! bsky.app/profile/neur...
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Dora Matzke @doramatzke.bsky.social · 22/05/2026
There are still a few spots available for the Twelfth Model-Based Neuroscience and Cognition Summer School, which will take place from 10–14 August 2026 at the University of Amsterdam. Be quick — the remaining spots will be filled on a rolling basis, so make sure to register soon!
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Rick den Otter @rickdott.bsky.social · 21/05/2026
New paper out: Trial-level sequence modeling reveals hidden dynamics of dual-task interference. We decoded, at the trial level, the sequence of cognitive operations people take when multitasking. We found that how cognitive operations interleaved across tasks predicted RT and accuracy!
journals.plos.org
Trial-level sequence modeling reveals hidden dynamics of dual-task interference
Author summary In our daily lives, we are often required to juggle multiple tasks at once, for example when operating an in-car device while driving. While multitasking is increasingly common, researc...
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Iris van Rooij 💭 @irisvanrooij.bsky.social · 09/04/2026
“Feel free to adapt and reuse. No attribution needed (…) If you make an adaption that you also want to share, I’d love to know about it, too.” irisvanrooijcogsci.com/2026/04/08/r...
irisvanrooijcogsci.com
Refusal to Review
I wrote the below email, when invited to review a paper that was partially processed by ChatGPT. As I imagine the email could be useful inspiration for others, I decided to make it available. Feel …
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Gabriel Weindel @gweindel.bsky.social · 10/04/2026
A very nice little conference in the memory of a brilliant colleague Laurence Questienne. Consider attending if you're into cognitive control, performance monitoring and listening to talks while seeing the Mediterranean sea
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Benedikt Ehinger @benediktehinger.bsky.social · 08/04/2026
When recording experimental data, have you ever: 1) overwritten data? 2) changed the experiment and forgot when? 3) had a student leave the lab leaving a mess of dataset? 4) noticed how everyone has their own way to transfer data? We published a solution: LSLAutoBIDS - open science by design. 🧵
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Aperture Neuro @apertureohbm.bsky.social · 07/04/2026
Barman et al. describe LSLAutoBIDS, an open-source #Python package that implements an automated workflow for data integration, curation, versioning, and publishing: doi.org/10.52294/001... #OpenDatasets #SpecialIssue @benediktehinger.bsky.social
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Gabriel Weindel @gweindel.bsky.social · 03/04/2026
Recommended, great lab also!
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Camille Grasso @grassocamille.bsky.social · 01/04/2026
Happy to share our new preprint: Uncovering the representational geometry of durations Is time represented along a single mental timeline? We combine behaviour + EEG to show that duration is organised in a richer, multidimensional space. w/ @lnalborczyk.bsky.social & @virginievanw.bsky.social
biorxiv.org
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Imaging Neuroscience @imagingneurosci.bsky.social · 31/03/2026
New paper in Imaging Neuroscience by Lauren C. Fong, Daniel Feuerriegel, et al: Tracing the neural trajectories of evidence accumulation and motor preparation processes during voluntary decisions doi.org/10.1162/IMAG...
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CuttingEEG @cuttingeeg.bsky.social · 27/03/2026
CuttingGardens 2026 is back 🌍 Global EEG & MEG multi-hub meeting 📅 Save the date: Sept 21–25 20+ Gardens worldwide 🇦🇷🇦🇺🇧🇪🇨🇱🇨🇳🇨🇺🇫🇷🇩🇪🇮🇹🇳🇱🇵🇱🇪🇸🇨🇭🇹🇭🇹🇳🇬🇧🇺🇾🇺🇸🇳🇬🇰🇪🇪🇬🇹🇿 Join the movement 🌱 #EEG #MEG #Neuroscience #OpenScience #CuttingGardens
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Gabriel Weindel @gweindel.bsky.social · 24/03/2026
OK folks, this is a very convincing EEG artifact rejection method both theoretically and practically from my short experience. It's the only method I tried that gets rid of pervasive artifacts in a dataset I'm currently analyzing!
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Tomas Ros @neuromeditate.bsky.social · 20/03/2026
youtu.be/qSM5narynzc?...
youtu.be
Walkthrough video of "Return of the GEDAI: Unsupervised EEG denoising based on Leadfield Filtering"
YouTube video by MrTomasros
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Gabriel Weindel @gweindel.bsky.social · 20/03/2026
Very interesting and cool joint modeling! My understanding is: estimate inter-trial variability of drift rate in DDM and prey that it's not also another underlying mechanism that generates slow errors (as is probably the case)
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Melinda Sabo @sabomelinda.bsky.social · 19/03/2026
Super excited to share that our paper, “Multiple Partially Overlapping Neural Modules Orchestrate Conflict Processing,” has been accepted for publication in Imaging Neuroscience! 🎉 1/n w/ @tgro.bsky.social @manuelvarlet.bsky.social Edmund Wascher, Patrick Gajewski direct.mit.edu/imag/article...
direct.mit.edu
Multiple partially overlapping neural modules orchestrate conflict processing
Abstract. Cognitive conflict is a ubiquitous aspect of our daily life, yet its underlying neural mechanisms remain debated. Competing theories propose that conflict processing is governed by either a ...
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Elisabeth Parés Pujolràs @epares.bsky.social · 18/03/2026
"If everyone thinks technological trends are inescapable, they probably will become so. That is why those serious about the human prospect should reject the rhetoric of fatalism and demand something more substantial."
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Hu Chuan-Peng is on paternity leave @hcp4715.bsky.social · 18/03/2026
A new meta analysis from the lab based on an open meta-dataset we have curated in the past few years
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Margaret Mitchell @mmitchell.bsky.social · 11/03/2026
"AI" is not a stochastic parrot.🦜 I wrote this piece a couple weeks ago, but it was hard for me to finish up given AI's role in society and war over the past few weeks. I should share it at some point though. Not perfect, but here it is. medium.com/@margarmitch...
medium.com
No, “AI” is not a Stochastic Parrot 🦜
I’ve recently come across a new flavor of AI denialism making the rounds.
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Gabriel Weindel @gweindel.bsky.social · 13/03/2026
Pressure to use genAI for #ECR is quite high, I feel it weekly... ethical, ecological, economical, privacy- and cognitive-related worries keeps me from joining that ship. I need more time to research not something that creates the illusion of reasoning, if that costs grants or positions, let it be.
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PsychoPy @psychopy.org · 10/03/2026
Want to learn how to contribute to #opensource? 👩‍💻👨‍💻 Never used #Git before? Join us for our free beginner-friendly workshop and learn the basics of contributing to open source projects like #psychopy 🗓 March 19th ⏰ 12:00 PM (UK time) Everyone is welcome 🚀 www.eventbrite.co.uk/e/my-first-p...
eventbrite.co.uk
"My First Pull Request": A Beginners Guide to Open Source with PsychoPy
Make your first pull request and learn how to get started in the world of Open Source Projects!
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Nicolas Clairis @nclairis.bsky.social · 09/03/2026
Based on our WhereToPublish database, we were curious to see if the APCs depend on the publisher type and with relatively no surprise at all, the journals that are for-profit are way above: For-profit journals = 2635 +/- 37€ (mean +/- sem) Non-profit & University Press journals = 1996 +/- 63€ 1/4
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Nicolas Clairis @nclairis.bsky.social · 10/02/2026
Dear all, I'm happy to present you a side project done with @diegoharta.bsky.social @phylogenetrips.bsky.social & Lucas Baudouin regarding the publication landscape in Biology: wheretopublish.github.io 1/4
wheretopublish.github.io
Where to Publish?
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Christoph Strauch @cstrauch.bsky.social · 07/03/2026
We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif... Now in its new dress @elife.bsky.social (convincing & valuable in round 1). If anyone wants to pick up the method, happy to share & explain!
doi.org
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Gabriel Weindel @gweindel.bsky.social · 30/01/2026
Does anyone have experience/resources on how to build interactive #statistics assignments in #R on a distributed computing server (e.g. running #Rstudio server) for more than 500 students?
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Redmond O'Connell @redmondoconnell.bsky.social · 26/02/2026
Check out our new paper which isolates a human brain signal that specifically tracks the growing urgency to commit to a choice pubmed.ncbi.nlm.nih.gov/41611534/. This one was a long time coming! Sterling work from @harveymccone.bsky.social and a bunch of past lab members!
pubmed.ncbi.nlm.nih.gov
A Movement-Independent Signature of Urgency During Human Perceptual Decision Making - PubMed
How does the brain adjust its decision processes to ensure timely decision completion? Computational modelling and electrophysiological investigations have pointed to dynamic 'urgency' processes that serve to progressively reduce the quantity of evidence required to reach choice commitment as time e …
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Gabriel Weindel @gweindel.bsky.social · 26/02/2026
Very interesting and solid study on the contribution of the earliest #EEG index of information processing*, i.e. the C1, to decision-making! *or at least one of the earliest? @elife.bsky.social
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Julia Haaf @juliaha.bsky.social · 26/02/2026
Only two days left to submit your abstract for this year's @mathpsych.org meeting. Some things to consider: 1. The conference is in Canada. 2. If you cannot attend in person, there is a virtual track. Consider submitting there! You can pick the track during the submission process. See you there!
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NeuroLeyla @neuroleyla.bsky.social · 19/02/2026
The OHBM DIC is calling for neuroimagers to share their work with children ages 8-15 and inspire the next generation of Brain Mappers. We welcome submissions to the event in Bordeaux and submissions for satellite events in your local community. This year's website: ohbm-dic.github.io/kidsreview/2...
ohbm-dic.github.io
Brain Mappers of Tomorrow: 2026
The 6th OHBM Brain Mappers of Tomorrow (formerly Multilingual Kids Live Review)
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Michael Pereira @meaperei.bsky.social · 24/02/2026
#hiring Come work with us to better understand the neuronal mechanism underlying perceptual consciousness! 18 months postdoctoral position at INSERM in Grenoble, France. ⌛Application deadline 10 March 2026. euraxess.ec.europa.eu/jobs/408445
euraxess.ec.europa.eu
Postdoctoral researcher on single neuron recordings for consciousness
Contract period: 18 monthsExpected date of employment: June 2026Proportion of work: Full timeSalary: according to INSERM scales (~2900 – 3300 € gross / month based on experience)Desired level of educa...
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Ven Popov @venpopov.bsky.social · 16/02/2026
If you are teaching any kind of statistics, probability or modeling classes, you'll love this website. Contains dozens of interactive simulations of random processes, with sliders, different visualizat options, and full numeric log ouput: www.randomservices.org/random/apps/...
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Tarryn Balsdon @tarrynbalsdon.bsky.social · 13/02/2026
Come join us at BAMB!
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Harrison Ritz @hritz.bsky.social · 03/02/2026
Final paper of my PhD 🤗 www.nature.com/articles/s44... There is growing interest in how cognitive control may improve value-based decision making. However, we find that a recent paper overestimated the role of control in their task, leading to erroneous interpretations of dACC recordings.
nature.com
Misspecified models create the appearance of adaptive control during value-based choice - Communications Psychology
In a new computational analysis of previous work, this study shows that a control-free mechanism better accounts for value-based decisions than an account that assumes top-down control invigorating th...
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Gabriel Weindel @gweindel.bsky.social · 30/01/2026
Does anyone have experience/resources on how to build interactive #statistics assignments in #R on a distributed computing server (e.g. running #Rstudio server) for more than 500 students?
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Pierre Mégevand @vanmedge.bsky.social · 30/01/2026
New PhD and post-doc job openings! Join me and Prof. Nina Kazanina @ Uni Geneva, Switzerland, to take part in an exciting project on relations and binding in language and vision, explored with cutting-edge neurophysiology (#iEEG and MEG). Full details in the job offer below.
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Gabriel Weindel @gweindel.bsky.social · 29/01/2026
Must... Resist... To recode all my python things in Julia to work on main projects... But maybe the speed increase could compensate the invested time? Any alternative experience on why I should not do it?
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Athina Tzovara @athinatzovara.bsky.social · 23/01/2026
We are hiring! We are looking for a postdoc to join our group. Join us to study how the human brain processes and recognizes music with iEEG recordings. Please share and apply! neuro.inf.unibe.ch/menu/announc...
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Andrew Perfors @perfors.net · 22/01/2026
I just created a series of seven deep-dive videos about AI, which I've posted to youtube and now here. 😊 Targeted to laypeople, they explore how LLMs work, what they can do, and what impacts they have on learning, well-being, disinformation, the workplace, the economy, and the environment.
youtube.com
Part 1: How do LLMs work?
YouTube video by Andrew Perfors
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David Brang @dbrang.bsky.social · 20/01/2026
Interpreting EEG requires understanding how the skull smears electrical fields as they propagate from the cortex. I made a browser-based simulator for my EEG class to visualize how dipole depth/orientation change the topomap. dbrang.github.io/EEG-Dipole-D... Github page: github.com/dbrang/EEG-D...
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Victor Férat @vferat.bsky.social · 08/01/2026
Happy to share that our #Python implementation of GEDAI (Generalized Eigenvalue De-Artifacting Instrument) is now available 🐍 💻 🧠 neurotuning.github.io/gedai/dev/in...
neurotuning.github.io
GEDAI — gedai
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