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Johannes Fahrenfort

@fahrenfort.bsky.social
1.7K followers 975 following 413 posts

Assistant Prof at VU Amsterdam. Neuroscience of consciousness, decision making. Computational modeling. Pet method: EEG. Critical of subjective measures. Co-PI in the consciousbrainlab.com with @svangaal.bsky.social and @timostein.bsky.social.

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Reposted by Johannes Fahrenfort
Roberto De Filippo @roberto-defilippo.bsky.social · 22/09/2026
created a website to convert any DOI to a elegant banner for presentations robertodf.github.io/doi-banner/
robertodf.github.io
DOI Banner — paper citation banners for slides
Paste a DOI, get a transparent citation banner for your slides. PNG and SVG, no server, no tracking.
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Matthias Nau @matthiasnau.bsky.social · 16/07/2026
Thrilled to share our new #preprint, and super proud of @zednud.bsky.social and our work on eye–brain dynamics during eyes-closed rest and sleep! Also excited to share that Zach started his PhD with me recently! 🎉 Lots of ideas and cool work ahead. Follow him on Bluesky and check out his thread! 🧵
Zach
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Heleen Slagter @haslagter.bsky.social · 19/08/2026
PhD position (4 years, paid) on an NWO-funded project on the Role of Foveal Processing in Spatial Attention at Vrije Universiteit Amsterdam, the Netherlands, supervised by Dr. Mieke Donk (main PI) and me! For more information: workingat.vu.nl/vacancies/ph...
workingat.vu.nl
Vacancy — PhD position (4 years) on the Role of Foveal Processing in Spatial Attention
Are you interested in understanding how attention shapes what we see? Would you like to combine behavioural experiments, psychophysics, and eye tracking to uncover how the brain selects and prioritise...
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Matthias Nau @matthiasnau.bsky.social · 19/08/2026
🚨 Job alert 🚨 Our department @vuamsterdam.bsky.social is hiring an Assistant Professor in Cognitive Neuroscience! Join our lovely community here in beautiful Amsterdam! 🧠🔥 Deadline: October 15 Apply: workingat.vu.nl/vacancies/as...
workingat.vu.nl
Vacancy — Assistant Professor in Cognitive Neuroscience
Join the Department of Experimental and Applied Psychology (Vrije Universiteit Amsterdam) as Assistant Professor in cognitive neuroscience.
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Meidas Sassy™ 🐬 @filosia.bsky.social · 25/09/2026
"How wonderful it is, that nobody needs to wait a single moment before starting to improve the world." - Anne Frank Anne wrote this in the darkest of times! If she could then, when the whole world was literally crumbling around her, while she was locked in an attic.. Then.. can't we too? #resist
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Nicolás Sánchez-Fuenzalida @n41c0.bsky.social · 31/08/2026
now out at @nconsc.bsky.social 🥳
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Nicolás Sánchez-Fuenzalida @n41c0.bsky.social · 28/08/2026
🙌🍾🎉 new paper w/ @svangaal.bsky.social, Z. van den Hurk @timostein.bsky.social & @fahrenfort.bsky.social where we attempted to replicate a classical unconscious priming study by Vorberg et al. (2003) using an improved single-subject Bayesian approach. 1/8
academic.oup.com
Evidence for unconscious priming using a Bayesian single-subject approach
Abstract. Many studies have claimed the existence of unconscious priming, but a valid statistical procedure for substantiating such claims is often lacking
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Johannes Fahrenfort @fahrenfort.bsky.social · 07/08/2026
Excellent work by @n41c0.bsky.social together with @cjungerius.bsky.social @smfleming.bsky.social and @svangaal.bsky.social and yours truly finally published in @natcomms.nature.com!
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Jet Lageman @jetlageman.bsky.social · 29/07/2026
Our latest work indicates that when we have to choose how to act to reach our goals, we do not just select the correct motor commands; we select between integrated representations of goals, actions, and expected sensory outcomes. Our results invite us to rethink how the brain controls action!
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Nicolás Sánchez-Fuenzalida @n41c0.bsky.social · 21/07/2026
well on time for my bi-yearly post I'm sharing the final version of this very cool work we started with @cjungerius.bsky.social @smfleming.bsky.social @svangaal.bsky.social @fahrenfort.bsky.social in 2021, when I was young and full of hope. Now out in @natcomms.nature.com 1/11
nature.com
The act of detecting a stimulus contaminates measures of conscious experience with decision biases - Nature Communications
A central challenge in consciousness research is determining whether people truly experience a stimulus. Here, the authors show that context biases traditional detection measures, whereas continuous r...
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Mike Frank @mcxfrank.bsky.social · 22/06/2026
If p < 0.05, you "reject the null." That's what many stats courses teach you to do. This week's Experimentology chapter argues that this binary, dichotomous frame can sometimes be useful but is the wrong default for psych experiments — there is a broader toolkit available! 🧵 experimentology.io
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Johannes Fahrenfort @fahrenfort.bsky.social · 23/05/2026
AI knows how to solve the climate crisis. Very easy. Didn’t have to think long. One sentence solution:
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Johannes Fahrenfort @fahrenfort.bsky.social · 20/05/2026
😂
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Johannes Fahrenfort @fahrenfort.bsky.social · 04/05/2026
Why on earth would the @apastyle.bsky.social allow citing LLMs if there is no way to find out where the LLM got its information from and/or whether the information is factual? We don't cite Google searches either, we cite actual sources 🙄 pfff halfwhits apastyle.apa.org/blog/cite-ge...
apastyle.apa.org
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Johannes Fahrenfort @fahrenfort.bsky.social · 04/05/2026
The Problem With Counterfeit People By Daniel C. Dennett archive.is/MqDsh
archive.is
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Matthew Cobb @matthewcobb.bsky.social · 02/05/2026
Excellent reminder from @garymarcus.bsky.social of all the arguments about why chatbots(a far better term than the misleading “AI”) are not conscious, using Dawkins’ daft infatuation as the starting point.
open.substack.com
Richard Dawkins and The Claude Delusion
The great skeptic gets taken in
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Mar Hicks @histoftech.bsky.social · 03/05/2026
Chinese researchers have created a bamboo-based plastic as strong as petroleum-based plastics, which can fully biodegrade in soil in just 2 months phys.org/news/2025-10...
phys.org
Bamboo-based plastic can be made to biodegrade quickly, but still holds up in tough conditions
A new method to produce strong, biodegradable plastic from bamboo is reported in Nature Communications this week. The bioplastic resembles oil-based plastics in strength, shapability, and thermal stab...
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Johannes Fahrenfort @fahrenfort.bsky.social · 03/05/2026
@rutgerbregman.com please watch this interview with Tucker Carlson! For all his wrongs, he seems to somehow be decent (deugt 😂) and agree with you about the core problem of America (financial inequality and the power of capital). Bizarre and anthropologically fascinating! youtu.be/2tpMkUCvqrs
youtu.be
What Does Tucker Carlson Really Believe? I Went to Maine to Find Out. | The Interview
YouTube video by The Interview
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Rufus Rock @rufusrock.bsky.social · 25/04/2026
Apparently, I think AI is more aware than most people do... Learn how you think about #consciousness compared to the crowd on awareometer.com
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Johannes Fahrenfort @fahrenfort.bsky.social · 14/04/2026
How is your day?
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Felienne Hermans @felienne.bsky.social · 05/04/2026
Skipped a week, sorry non-Dutch friends! But this week's newsletter is translated again! www.felienne.nl/2026-14/#eng... (Including a translation of my opening remarks in The Dutch Parliament this week on AI in schools)
felienne.nl
AI in week 14
In de Tweede Kamer, een gebrek aan vibe coding en heel veel podcasts!
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The New York Times @nytimes.com · 03/04/2026
The U.S. Forest Service is closing 57 of its 77 research facilities in 31 states under a reorganization plan announced this week, threatening science that looked at how wildfires, drought, pests and global warming are putting pressure on forests.
nyti.ms
Forest Service Will Close Research Stations That Study Wildfire Risk
Scientists say their work on fires and climate change could be lost as the agency moves its headquarters to Utah from Washington and shuts 57 research stations.
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Johannes Fahrenfort @fahrenfort.bsky.social · 11/03/2026
Best PhD job advert. Ever.
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Johannes Fahrenfort @fahrenfort.bsky.social · 10/03/2026
Interesting!
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Simon Kuestenmacher @simongerman600.bsky.social · 09/03/2026
A timely reminder that social progress doesn’t come easy. The idea of half the population not being allowed to vote might sound bizarre now but was reality until embarrassingly recently.
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Johannes Fahrenfort @fahrenfort.bsky.social · 05/03/2026
I gave talk about subjective and objective approaches in the study of conscious perception last week in a BAMΞ workshop @uni-bamberg.de hosted by @johanneskleiner.bsky.social @jolienfrancken.bsky.social and @ronyhirsch.bsky.social. You can find the recording here: www.youtube.com/watch?v=S1zB...
youtube.com
Johannes Fahrenfort: Subjective and Objective Approaches in the Study of Conscious Perception
YouTube video by Mathematical Consciousness Science
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Andrey Chetverikov @achetverikov.bsky.social · 04/03/2026
Recently, van der Stigchel and colleagues posted a provocative commentary suggesting that we should be wary of bots in online behavioral data collection (🧵by @cstrauch.bsky.social here: bsky.app/profile/cstr...). But should we? Here is my response letter osf.io/preprints/ps.... 1/5
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Heleen Slagter @haslagter.bsky.social · 29/01/2026
What is the brain for? Active inference is widely discussed as a unifying framework for understanding brain function, yet its empirical status remains debated. Our review identifies core predictions across the action-perception cycle and evaluates their empirical support: osf.io/preprints/ps...
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Jet Lageman @jetlageman.bsky.social · 26/01/2026
Do goal-directed actions minimize prediction error? Together with @haslagter.bsky.social and @fahrenfort.bsky.social I identified falsifiable predictions of active inference and reviewed the extent to which they are supported by empirical results. Read the preprint here: tinyurl.com/2by8k3h6
osf.io
OSF
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Johannes Fahrenfort @fahrenfort.bsky.social · 22/11/2025
WHY IS NOBODY PANICKING OVER HUGE DRONES ABOVE SENSITIVE MILITARY / NUCLEAR INSTALLATIONS ACROSS NEW JERSEY, DENMARK, GERMANY, BELGIUM, THE NETHERLANDS ETC. SHOOT THEM DOWN FFS!
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Sebastiaan Mathôt @cogsci.nl · 12/11/2025
Most of you know @suryagayet.bsky.social as a successful visual-attention researcher. But he also had an active #music career as a #rap artist. And like Jay-Z before him, he has briefly come out of retirement with a new album. Check it out—it's very good! 🎤🎶 open.spotify.com/album/7HrnAB...
open.spotify.com
Drijfzand
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Nicolás Sánchez-Fuenzalida @n41c0.bsky.social · 07/11/2025
it is time to make my biyearly post because I put a preprint out🎉🍾😀. we (w/ @svangaal.bsky.social, Z. van den Hurk, @timostein.bsky.social & @fahrenfort.bsky.social) attempted to replicate a classic unconscious priming study by Vorberg et al. (2003) using a single-subject Bayesian approach.
osf.io
OSF
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Alina Studenova @studenova.bsky.social · 19/10/2025
Great overview conceptualizing approaches for studying sensory conscious perception👏. I, myself, had research experience with both subjective and objective approaches, but it was nice to learn the great landscape and where I land. Table 1 is especially informative.
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Johannes Fahrenfort @fahrenfort.bsky.social · 17/10/2025
Pre-print 🎉 "Subjective and objective approaches in the study of conscious perception" will be a chapter in www.horizon-minds.com. We explain that subjective and objective are poorly defined constructs and provide a taxonomy. doi.org/10.31234/osf... with @svangaal.bsky.social @timostein.bsky.social
doi.org
OSF
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Hugo Spiers @hugospiers.bsky.social · 17/10/2025
What could possibly go wrong?! nypost.com/2025/10/16/b...
nypost.com
Top US Army general says he’s using ChatGPT to help make key command decisions
Maj. Gen. William “Hank” Taylor told reporters that he’s been using ChatGPT to refine how he makes choices affecting thousands of troops.
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Johannes Fahrenfort @fahrenfort.bsky.social · 17/10/2025
I feel seen...
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Johannes Fahrenfort @fahrenfort.bsky.social · 17/10/2025
Pre-print 🎉 "Subjective and objective approaches in the study of conscious perception" will be a chapter in www.horizon-minds.com. We explain that subjective and objective are poorly defined constructs and provide a taxonomy. doi.org/10.31234/osf... with @svangaal.bsky.social @timostein.bsky.social
doi.org
OSF
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Johannes Fahrenfort @fahrenfort.bsky.social · 15/10/2025
I thought we only did this on April 1st?
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The Transmitter @thetransmitter.bsky.social · 13/10/2025
Figuring out how the brain uses information from visual neurons may require new tools, writes @neurograce.bsky.social. Hear from 10 experts in the field. #neuroskyence www.thetransmitter.org/the-big-pict...
thetransmitter.org
Connecting neural activity, perception in the visual system
Figuring out how the brain uses information from visual neurons may require new tools. I asked nine experts to weigh in.
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Johannes Fahrenfort @fahrenfort.bsky.social · 02/10/2025
Who thinks this is an acceptable statement about Code Availability given the move towards Open Science? Are you out of your mind @ethz.ch? Today is 2025, not 2005. I'm also surprised that @natcomms.nature.com accepts such a statement. It is ridiculous really. Paper here: doi.org/10.1038/s414...
Code availability: The code of the pupil-based biofeedback algorithm cannot be made publicly available since it is proprietary software of ETHZurich and cannot be shared beyond the detailed description of the algorithm given in the methods section. However, researchers interested in verifying and reproducing our results can do so on location in a secured environment at the Neural Control of Movement Laboratory, ETH Zurich, upon signing a confidentiality agreement.
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derek guy @dieworkwear.bsky.social · 01/10/2025
australian street style, 1973
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Johannes Fahrenfort @fahrenfort.bsky.social · 01/10/2025
This is impressively good
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Johannes Fahrenfort @fahrenfort.bsky.social · 01/10/2025
It's looking increasingly less likely that AI will take over the world and replace humanity in the process. Maybe GPT-6?
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Johannes Fahrenfort @fahrenfort.bsky.social · 01/10/2025
The EU wants to ban words like "burger" for veggie burgers. What are we supposed to call it then? Veggie thing formerly known as burger? Go do something useful with your time idiots, this is why the UK left. Please sign petition and stop the meat lobby. weplanet.yourmovement.org/p/noconfusio...
weplanet.yourmovement.org
Stop the EU’s Ban on “Meaty” Words for Plant-Based Foods
Sign now
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Matthieu Chidharom @matthieu-mx.bsky.social · 28/09/2025
1/ Why are we so easily distracted? 🧠 In our new EEG preprint w/ Henry Jones, @monicarosenb.bsky.social and @edvogel.bsky.social we show that distractibility is associated w/ reduced neural connectivity — and can be predicted from EEG with ~80% accuracy using machine learning.
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Johannes Fahrenfort @fahrenfort.bsky.social · 29/09/2025
This is a dumb take. Students already know how to use AI. Regardless, we need to teach them *about* AI, and they need to learn fundamental skills (find sources, reason, write, program) *without* AI. Only once such core skills are acquired can they even evaluate AI output.
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Ted McCormick @tedmccormick.bsky.social · 28/09/2025
If you don’t teach your students your subject, you’re not doing your job. If you teach your students to ask AI first, you’re ensuring they’ll never be *needed* for any job. You’re also guaranteeing that knowledge of your subject slowly dies. Asking ChatGPT is gaining neither knowledge nor skills.
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Mariusz @mariusz.cc · 27/09/2025
Another example of my favorite recent quote I saw somewhere: “the dumbest person you know is being told by AI they’re absolutely right”
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Alina Studenova @studenova.bsky.social · 26/09/2025
Simulations are fun! Especially with the right tools😉. @willenjoy.bsky.social and I (with support from Mina Jamshidi) made a toolbox for simulating EEG/MEG data meegsim.readthedocs.io I put together a quick simulation using it for this short clip. Took me 10 minutes (no, really!) #brainmovies
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Johannes Fahrenfort @fahrenfort.bsky.social · 26/09/2025
This all sounds great, but I think it starts with requiring that people power their studies to detect Null effects. Pick a SESOI and do power analysis for a TOST rather than NHST. Publication will be much easier for such results whichever way the chip falls. Or go Bayes. dx.plos.org/10.1371/jour...
dx.plos.org
Ending publication bias: A values-based approach to surface null and negative results
Sharing knowledge is a fundamental principle within the scientific community, yet null and negative results are still being underreported. This Consensus View discusses the problem of such publication...
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