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rogier kievit

@rogierk.bsky.social
5K followers 1.6K following 315 posts

Professor of Developmental Neuroscience @DondersInst and @radboudumc. Developmental cognitive neuroscience, brains, cognitive performance, longitudinal modeling, sourdough, science & Rstats.

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Reposted by rogier kievit
Rik Henson @rhens.bsky.social · 25/09/2026
So thankful to the University of Cambridge for enabling a new chapter in the long history of the APU/CBU (since MRC decided to close all its units…)
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Dr Vanessa @hpsvanessa.bsky.social · 25/09/2026
Cannot tell you how much I hate this & how ashamed & angry I am that @ukri.org have taken this step. We KNOW this sort of gAI is socially biased, we KNOW it favours slopAI output over human-written. Our research landscape is falling apart due to underfunding, & they do this? it's *appalling*
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Jan Vanhove @janhove.bsky.social · 18/09/2026
New blog post: "Cluster analysis: A skeptic’s guide". In which I ask a few questions that social scientists wishing to identify hidden classes in their data ought to address. janhove.github.io/posts/2026-0...
A two-dimensional scatterplot showing a three-cluster solution.

Caption: "Figure 2: A visualisation of a Latent Profile Analysis fit. Such visualisations may help readers appreciate that the clusters aren’t nicely separated and that the researchers’ notion of clusters may not correspond to their own."Table of contents:

Refresher: What is cluster analysis?
What are the clusters for?
What clusters, exactly?
Does the pipeline work?
What does the solution look like?
When running follow-up analyses, how is the uncertainty in the cluster assignments taken into account?
Was it worth it?
Conclusion
References
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Bill Chopik @chops310.bsky.social · 14/09/2026
Hi, I'd like to apply for the lifetime achievement award. Although my chronological age would seemingly render me ineligible, my biological age? Firmly in the eligibility window. How old do I feel (subjective age)? I'm at death's door. Thank you for your consideration
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Eiko Fried @eikofried.bsky.social · 11/09/2026
Ever since this happened, I have never given journals sole ownerhip of my supplemental materials .. eiko-fried.com/blog/supplem...
eiko-fried.com
Supplementary materials fail | Eiko Fried
A few months ago, we published a new paper Fried, E. I., van Borkulo, C. D., Cramer, A. O. J., Boschloo, L., Schoevers, R. A., & Borsboom, D. (2017). Mental disorders as networks...
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Jørgen Heszlein @heszlein.bsky.social · 12/08/2026
New estimate of Elon Musk’s death toll just dropped www.thelancet.com/journals/lan...
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rogier kievit @rogierk.bsky.social · 11/08/2026
Unfortunate, yet understandable and clearly very carefully deliberated course changes at OSF. Anyone who's worked on anything OS related knows that getting funding for exciting new projects is hard, let alone sustained, long term funding. OSF has been the foundation for many improvements in science.
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Leah Banellis @leahbanellis.bsky.social · 23/07/2026
Sensing your body (‘Interoception’) is everywhere in theories of mental health. But when we tested how well hundreds of people sensed their heart and lungs, the link to symptoms was almost nowhere to be found. 💣 🚨New @natmentalhealth.nature.com paper 🚨🎉 asks why 🧵 www.nature.com/articles/s44...
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Anne Scheel @annemscheel.bsky.social · 23/07/2026
New preprint w/ Leo Tiokhin & @lakens.bsky.social! Registered Reports (RRs) are great for science b/c publication is guaranteed before results are known, reducing publication bias & QRPs. This feature supposedly also makes them great for *scientists*. But is that really true? 1/ tinyurl.com/4sy993rr
tinyurl.com
Career incentives make Registered Reports unattractive under realistic academic conditions
Registered Reports are a publication format designed to reduce publication bias by guaranteeing publication before results are known. This guarantee is considered attractive in the prevailing ‘publish...
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 24/07/2026
'The enormous and overwhelming -not to say pathetic- admiration, even adoration of the author for her subject is barely acceptable'
static.klipy.com
Gordon Ramsay Says 'Pathetic' on MasterChef
ALT: Gordon Ramsay Says 'Pathetic' on MasterChef
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Admirable Women @admirablewomen.bsky.social · 16/07/2026
Neuroscientist Dr. Brenda Milner is recognized as one of the fundamental founders of modern cognitive neuropsychology. She proved the hippocampus is essential for forming long-term "declarative" memory (facts, names & events). She was born #OTD in 1918--she's 108 years old today! #WomenInSTEM
A color photograph of Dr. Brenda Milner (born 1918), the pioneering British-Canadian founder of cognitive neuropsychology whose landmark work mapped localized memory in the human hippocampus. Seated and facing left, she engages an audience with an expressive, animated posture, both hands raised in gestural emphasis. Her short, silver-gray hair is styled back with soft volume, framing a deeply lined, intent face with a focused expression. She wears a tailored, dark navy and black textured tweed jacket over a simple cream blouse. A multi-strand necklace of dark, polished beads hangs around her neck, and a small, delicate pin is affixed to her left lapel. A flesh-colored over-ear microphone wire curves across her cheek. The dimly lit stage setting shows a blurred equipment in the background under subtle stage lighting, giving the composition a dynamic, scholarly atmosphere that highlights her enduring intellectual passion.
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Mike X Cohen PhD, Sincxpress Education @mikexcohen.bsky.social · 15/07/2026
Are you a neuroscientist considering a transition to AI? I wrote some thoughts about it. mikexcohen.substack.com/p/transition...
mikexcohen.substack.com
Transitioning from neuroscience to AI?
Some tips from someone who's done it (sort of)
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Jamie Cummins @jamiecummins.bsky.social · 14/07/2026
Today we launch the first stable release of RegCheck: v1.0.0. RegCheck makes it easier and quicker to compare study registrations to published papers for consistency - something we know is important in principle, but rarely done in practice. A 🧵 on what's new: regcheck.app
regcheck.app
RegCheck
RegCheck is an AI tool to compare preregistrations with papers instantly.
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Albert Pinto @70sbachchan.bsky.social · 05/07/2026
The insanity of the world summarised in two headlines "US fossil fuel power spending to beat China for the first time in decades" "Heat dome over eastern US sends electricity prices soaring"
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Dan Quintana @dsquintana.bsky.social · 06/07/2026
Our department just announced a new Associate Professor position in quantitative research methodology 🇳🇴 One of the favorable qualifications is experience with open science practices + R/Python experience www.jobbnorge.no/en/available...
jobbnorge.no
Associate Professor in Quantitative Research Methodology (302697) | University of Oslo
Job title: Associate Professor in Quantitative Research Methodology (302697), Employer: University of Oslo, Deadline: Tuesday, September 1, 2026
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rogier kievit @rogierk.bsky.social · 03/07/2026
This is the most exciting projects I've worked on - Bringing together new methods and large datasets to answer an increasingly important question. Our findings (led by @njudd.com) suggest wildfire pollution has a measurable, negative impact on neurocognitive development in children
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rogier kievit @rogierk.bsky.social · 01/07/2026
Outlook can't open a Teams link in an email directly in Teams - but their shortcut to 'add to music as a spoken track' is, presumably, what they think is the next best thing.
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 26/06/2026
"I doubt that it’s worth publishing a handful of graphs that few would find surprising and that anyone else could generate in a day off."
static.klipy.com
Man Throws Trash Bag with NZA INDA BIN
ALT: Man Throws Trash Bag with NZA INDA BIN
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Samira Shackle @samirashackle.bsky.social · 25/06/2026
I have to say, it's making me feel a little insane hearing commentators say Ed Miliband shouldn't be chancellor because of his "ideological zeal" for Net Zero, in a week where temperatures are so extreme that my kids are being sent home early every day and it's regularly 30 degrees inside my house
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rogier kievit @rogierk.bsky.social · 22/06/2026
In the Netherlands, edtech platforms (Prowise, Gynzy) track performance and implement adaptive testing at the trial level. Regardless of their merits & drawbacks (both exist aplenty), are people aware of other countries (especially global south/LMIC's) that widely use such platforms in schools?
An image of a child practicing vocabulary on a tablet
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 15/06/2026
"The reported mean of 7.7 is misleading because it appears that close to half of your participants are scoring below that mean"
static.klipy.com
Man Calculating with Math Equations Overlay
ALT: Man Calculating with Math Equations Overlay
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 21/06/2026
"I have received one highly negative review and wondered whether it could be overcome by other reviews. I conclude that the answer is no"
static.klipy.com
Man Holds 'No' Sign
ALT: Man Holds 'No' Sign
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 15/06/2026
Who are 'we' you ask? We are your favourite online celebration of the harsh, the weird, the passive aggressive, the active aggressive and the downright mean comments practicing scientists receive on a regular basis. Because a review shared is a review halved* (*proverbs aren't our forte)
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 15/06/2026
"I am afraid this manuscript may contribute not so much towards the field's advancement as much as towards its eventual demise."
static.klipy.com
Grim Reaper: Death's Solitude
ALT: Grim Reaper: Death's Solitude
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ShitMyReviewersSay @shitmyreviewerssay.bsky.social · 15/06/2026
You thought we'd disappeared - Nothing could be further from the truth. After a four year silent retreat, cleansing ourself from the energy of The Other Place and the lingering aftertaste of several hundred harsh reviews, we're back! We'll be reposting the back catalogue & taking new submissions.
static.klipy.com
Zhakk Harn: Guess Who's Back Raccoon
ALT: Zhakk Harn: Guess Who's Back Raccoon
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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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BrainHelpDesk @brainhelpdesk.bsky.social · 05/06/2026
Antwoord door @rogierk.bsky.social van het @radboudumc.bsky.social; redactie: @samdekater.bsky.social van het @dondersinst.bsky.social: brainhelpdesk.nl/vraag/leer-j... Heb jij ook een #brein #vraag? Stel hem bij de @brainhelpdesk.bsky.social en we komen met een #antwoord!
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BrainHelpDesk @brainhelpdesk.bsky.social · 05/06/2026
Answer by @rogierk.bsky.social of the @radboudumc.bsky.social; editing and translation by @samdekater.bsky.social of the @dondersinst.bsky.social: brainhelpdesk.nl/en/vraag/lee... Do you also have a #brain #question? Ask it at the @brainhelpdesk.bsky.social and we will come up with an #answer!
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rogier kievit @rogierk.bsky.social · 31/05/2026
Spoiler alert: This is the practical exam when you apply for dutch citizenship
A photo of a cargobike with a very large (2.5 meter) cardboard box in it
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rogier kievit @rogierk.bsky.social · 28/05/2026
Congratulations - A heroic effort on an important topic by a stellar team of researchers
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Mark Riedl @markriedl.bsky.social · 14/05/2026
ArXiV has a new LLM policy (Screenshots with alt text so you don’t have to click through to the other place and see all the stupid responses)
Attention @arxiv authors: Our Code of Conduct states that by signing your name as an author of a paper, each author takes full responsibility for all its contents, irrespective of how the contents were generated. 1/If generative AI tools generate inappropriate language, plagiarized content, biased content, errors, mistakes, incorrect references, or misleading content, and that output is included in scientific works, it is the responsibility of the author(s). 2/

We have recently clarified our penalties for this. If a submission contains incontrovertible evidence that the authors did not check the results of LLM generation, this means we can't trust anything in the paper. 3/The penalty is a 1-year ban from arXiv followed by the requirement that subsequent arXiv submissions must first be accepted at a reputable peer-reviewed venue. 4/

Examples of incontrovertible evidence: hallucinated references, meta-comments from the LLM ("here is a 200 word summary; would you like me to make any changes?"; "the data in this table is illustrative, fill it in with the real numbers from your experiments") end/
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rogier kievit @rogierk.bsky.social · 13/05/2026
My fave work event: the annual writing retreat of the Lifespan Cognitive Dynamics lab. We wrote, cooked, went on long walks & discovered each other’s niche passions (traditional dance, metros, temperature, the best cats in Nijmegen & more), and I did more writing in 3 days than in 3 'normal' weeks
A group of people straddling the germany/netherlands geographical borderA group photo of 14 researchers with a forest in the backgroundA photo of people working on their laptops side by side, clearly concentrating
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Jacobs Foundation @jacobsfoundation.bsky.social · 11/05/2026
Developmental science has learned a great deal about children. Too often, from children in a narrow set of countries and populations. In this video, @rogierk.bsky.social explains why LEVANTE’s global, open, collaborative model matters. Learn more & join 🔗 levante-network.org/open-call-fo...
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Natural History Museum, London @nhm-london.bsky.social · 08/05/2026
Join us in wishing a massive happy 100th birthday to the man who has inspired millions of people around the world to care about nature and look after our planet - the incredible Sir David Attenborough! 🎉
David Attenborough standing outside the Museum wearing a blue jacket and blue and white patterned tie. He is laughing in the image, which features text saying "Happy 100th birthday Sir David Attenborough!"
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NeuroecologyLab @neuroecologylab.bsky.social · 05/05/2026
Out in the UK today! press.princeton.edu/books/hardco...
press.princeton.edu
The Fox, the Shrew, and You
A leading neuroscientist describes the long evolutionary process that led to the human brain
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The Transmitter @thetransmitter.bsky.social · 27/04/2026
Prediction without understanding sustained astronomy through a thousand years of epicycles, writes @tonyzador.bsky.social. AI is now offering neuroscience the same deal. #neuroskyence www.thetransmitter.org/machine-lear...
thetransmitter.org
Can AI do neuroscience without understanding?
Prediction without understanding sustained astronomy through a thousand years of epicycles. Artificial intelligence is now offering neuroscience the same deal.
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rogier kievit @rogierk.bsky.social · 23/04/2026
Tantalizing interpretable machine learning
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Julia M. Rohrer @dingdingpeng.the100.ci · 22/04/2026
Good news everyone 🥳 Our (w @vincentab.bsky.social) primer on models as prediction machines (with the marginaleffects package) is finally officially published!> journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Models as Prediction Machines: How to Convert Confusing Coefficients Into Clear Quantities - Julia M. Rohrer, Vincent Arel-Bundock, 2026
Psychological researchers usually make sense of regression models by interpreting coefficient estimates directly. This works well enough for simple linear model...
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Dr. Jens Foell @jensfoell.de · 15/04/2026
OpenAI: We’re burning money like the Joker. A miracle needs to happen for us to turn a profit Microsoft: Please please use our AI systems, we’re teetering on the edge here Anthropic: I wonder what’ll kill us first: lawsuits, regulations or model collapse Media and universities: AI is here to stay
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andrea e. martin @andreaeyleen.eurosky.social · 13/04/2026
OPEN POSTDOC position (part of @erc.europa.eu Consolidator DYNALANG) We build math&comp models of neural dynamics using insights from formal linguistics + ML Seeking theory-driven researchers w/ interests in language, neural dynamics, & math/comp neuroscience. Apply here: tinyurl.com/55exdpse
tinyurl.com
Postdoctoral Position in the Cognitive Computational Neuroscience of Language | Max Planck Institute
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rogier kievit @rogierk.bsky.social · 08/04/2026
Data is beautiful
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rogier kievit @rogierk.bsky.social · 07/04/2026
Do you laugh? Cry? Despair? How can the future of the world be beholden to this? How?
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Angry @angrystaffer.bsky.social · 07/04/2026
Seriously, what the fuck is this. This is completely deranged, and anyone who can’t say so is a coward.
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rogier kievit @rogierk.bsky.social · 02/04/2026
Come work with us, answering interesting questions in new ways
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Anne Urai @anne-urai.bsky.social · 30/03/2026
Hivemind, what online data collection platforms would support both multi-player experiments + low-latency, high-precision timing for RTs? 🧠🧑‍💻
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Tim Verstynen @tdverstynen.bsky.social · 30/03/2026
Working in modern academia means spending 75% of your time being lectured by admins about not following minutia details of 100+ page handbooks (often now LLM-written) and making endless formatting tweaks to documents you need approved for the work you’re supposed to spend 100% of your time doing.
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Fleur Zeldenrust @fleurzeldenrust.bsky.social · 22/01/2026
I am so proud of the team that made the @brainhelpdesk.bsky.social and that continues to work very hard to answer all these fun #brain #questions!
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rogier kievit @rogierk.bsky.social · 27/03/2026
Very cool to be at yesterday's update on the DYNAMIC project working to develop the first human focused 14 tesla scanner. Some amazing technology, astounding numbers (490 *kilometers* of coil wire) and a real sense of pushing the frontiers of our knowledge. www.ru.nl/en/donders-i...
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rogier kievit @rogierk.bsky.social · 26/03/2026
Very interesting new paper led by Arjen Alink & @helenblank.bsky.social
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Simon Fisher @profsimonfisher.bsky.social · 24/03/2026
“I shall send off the manuscript today or Monday. It is an extremely poor affair; I must say something & have nothing worth saying. Lock it up carefully, I hate it to that extent it would break my heart to write it again.” Charles Darwin captures the joy of academia in a letter to his daughter, 1871
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