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Posts by Tom Wallis

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Tenure Track Assistant Professor in Cognitive Psychology The Department of Psychology at the University of Southern Denmark invites applications for a full-time position as tenure-track Assistant Professor. The position is a six-year tenure-track appointmen...

Tenure-track position in Denmark "with a particular focus on visual perception, including visual attention, working memory, and visual neuroscience" #neurojobs #neuroskyence #visionscience
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...

8 hours ago 16 23 0 0

I am presenting our work this week at #NCMKobe26 @ncmsociety.bsky.social

Our poster is during the Thursday/Friday session: **P2-G-182** - _A computational account of tactile suppression during reaching movements_

Dimitris Voudouris @dominikstrb.bsky.social Katja Fiehler @c-rothkopf.bsky.social

2 days ago 6 3 0 0

Don't be shy to take on a little two-week side project. These five months will be the most precious three years of your academic journey.

1 day ago 1508 428 16 42

My lab is going to print these words and staple them to my forehead.

1 day ago 112 5 0 0

Peak retired academic moment.
1. One of those emails: Are you the R Watt who wrote xxxxxx?
2. Nope, but it sounds vaguely interesting. Wonder what they found.
3. Google - read it and discover that I did write it.

4 days ago 123 16 7 2
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Why funders shouldn’t withdraw money from open access publishing Cancer Research UK’s decision to stop funding article processing charges marks a significant shift in how they approach open access. In its April 1st announcement (not an April Fool), the org…

"Much of OA policy is grounded in an ideology that treats everything as a market problem to be fixed through market instruments....neoliberal logic that gave rise to APCs"

Whether or not you agree with the main thrust of this article, the above is accurate. 1/2 www.samuelmoore.org/2026/04/14/w...

4 days ago 33 9 4 1

Definitely the most exciting microtonal art punk muppet band for some years.

6 days ago 1 0 1 1
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Children exhibit visual understanding from limited experience, orders of magnitude less than our best models.

We introduce the Zero-shot World Model (ZWM). Trained on a single child's visual experience, BabyZWM rapidly generates competence across diverse benchmarks with no task-specific training. 🧡

1 week ago 55 24 1 4

I think we finally made really significant progress on the biggest unsolved "developmental AI" problem: learning from human-scale data. Key idea: zero-shot world models that support concept extraction via approximate causal inference. amazing collab w/ @mcxfrank.bsky.social @khaiaw.bsky.social

1 week ago 41 11 1 1

AI seems to be the topic of the year β€” nearly every conversation I have in my role as academic lead for good research practice touches on it in some way. I’d like to lay out my developing thoughts for conversation and critique. (1/7)

1 week ago 34 16 1 1
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A scaled collection of brains from common neuroscience model organisms arranged side by side. From left to right: a large human brain and a smaller macaque brain on the top row; below them progressively smaller brains from a marmoset, rat, mouse, zebrafish, and a tiny Drosophila (fruit fly). A coin provides size reference. An inset shows a small, irregularly shaped brain organoid.

A scaled collection of brains from common neuroscience model organisms arranged side by side. From left to right: a large human brain and a smaller macaque brain on the top row; below them progressively smaller brains from a marmoset, rat, mouse, zebrafish, and a tiny Drosophila (fruit fly). A coin provides size reference. An inset shows a small, irregularly shaped brain organoid.

I created this collection of common brain models in neuroscience, all to scale

Across species, brains share fundamental principles and many homologous regions

But as size increases, complexity and connectivity change. We need the full spectrum, from flies to rodents, non-human primates, and humans

1 week ago 37 10 3 3
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🚨New preprint and our results are rather concerning..

We find the "boiling frog" equivalent of AI use. Using large-scale RCTs, we provide *casual* evidence that AI assistance reduces persistence and hurts independent performance.

And these effects emerge after just 10–15 minutes of AI use!

1/

2 weeks ago 1513 679 27 74

(Leaving aside that Danielle's original complaint was about making decisions that involve extrapolation outside the data, in which case, yeah a linear probability model is going to get you into all kinds of trouble).

2 weeks ago 2 0 1 0

The Gomila argument is basically "sometimes there's no difference between a linear model and a logistic, so just use the simpler one!". As I replied to our reviewer, our paper clearly shows an example where this choice *does* make a difference. I'd prefer the principled generative model every time.

2 weeks ago 2 0 1 0
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I wrote up something that's been in my head for a while: psychometric methods alone can't tell us what cognitive tasks and their indicators measure.

Correlating indicators across tasks is circular when constructs are defined by those same correlations.

osf.io/preprints/ps... 🧡1/3

2 weeks ago 44 15 1 1

Really happy we, @koberauer.bsky.social & Ricardo Rebmann & I, could finally put all the pieces together with the right framing.

The take home message: better #Psychometrics methods and models won't fix this. We need explicit theories of how cognition produces behavior. 3/3

2 weeks ago 6 1 0 0

Holy shit. This is like if a foreign country bombed MIT. Sharif University is the top science and engineering institution in Iran, and one of the top in the world. Absolutely unconscionable www.aljazeera.com/news/liveblo...

2 weeks ago 312 151 6 6
SciPost: J. Robust. Rep. 1-rr1 (2026) - No evidence that late-sighted individuals rely more on color for object recognition: A Bayesian generalized mixed effects model analysis SciPost Journals Publication Detail J. Robust. Rep. 1-rr1 (2026) No evidence that late-sighted individuals rely more on color for object recognition: A Bayesian generalized mixed effects model analysi...

A reviewer raised this recently in regard to a short paper of ours showing that using t-tests on proportion data near the bounds may induce an interaction effect, where logistic regression does not. scipost.org/JRobustRep.1...

2 weeks ago 3 0 0 0
APA PsycNet

I was surprised to learn recently that there is a literature arguing for β€œthe linear probability model” in some circumstances (eg psycnet.apa.org/record/2020-...).

2 weeks ago 5 0 2 0
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Are we all Agents of Chaos in AI? (Hope not!)

In recent weeks using OpenClaw has taught us a lot about this wooly new kind of autonomous software agent.

Its valuable to see what @NatalieShapira, @wendlerch et al. have seen:

agentsofchaos.baulab.info/

1 month ago 16 7 2 2

guardrails are a scam

2 weeks ago 76 12 6 1

🧡 3 papers by me & my team Ullrich Ecker Fabio Carrella Emily Spearing Almog Simchon ask an urgent question: if you tell people they're being manipulated by AI β€” deepfakes, AI-written articles, microtargeted ads β€” is the manipulation defanged?
Thread πŸ‘‡

1/10

2 weeks ago 208 98 6 20

11/12
Across all three papers, the same pattern: transparency β€” simply telling people they're being manipulated β€” reduces AI-driven influence at best partially, and often not at all.
This is a critical problem, because the EU AI Act relies heavily on transparency as its main tool.

2 weeks ago 108 30 1 0

Today's my first day of the second year of my doctoral degree and I want to share some things I struggle with and things I learned throughout the first year. Just a brain dump and no particular order. Feel free to add yours :)

1/n

2 weeks ago 3 1 1 0
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Cow-culation: Reentry Impact Risk to Livestock in the Satellite Megaconstellation Era The commercial space industry is launching more satellites into Low Earth Orbit every year. Aotearoa New Zealand (NZ) has a thriving dairy and cattle industry. Unfortunately, these industries could co...

Behold this most serious paper, in submission to Acta Prima Aprilia. A three-way collaboration with @sundogplanets.mastodon.social.ap.brid.gy, myself & Laura Revell πŸ›°οΈπŸ„πŸ€ πŸ”­

3 weeks ago 85 18 7 6

As someone who studies politicization of democratic militaries this statement on X is a five- alarm fire. It creates an undeniable permission structure for overt partisan behavior by mil. It's part of a concerted effort by civilian leaders to turn the U.S. military into a partisan aligned force.

2 weeks ago 3103 1026 63 15

β€œThe reason, according to the study, is that women have almost five times the amount of childcare responsibilities that men have.”

2 weeks ago 6 1 0 0
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Color Game β€” How Well Can You Remember Colors? We show you colors. You recreate them from memory. Challenge friends to beat your score. It's harder than you think. Play free at dialed.gg.

Visual #workingmemory peeps, you're going to love this. This is super challenging - might give you pause on how we are measuring color memory...

My color memory is a 40.4/50. Please do worse so I feel better.
dialed.gg?c=3PCHDE

3 weeks ago 61 18 19 6

Super excited to see the first paper from my PhD out! 🐭 Very satisfying to get to build an interpretable model of how the brain does a thing. A nice palette cleanser in the current sea of LLMs and deep ML.

3 weeks ago 26 10 1 0
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Wikipedia now has higher standards than all universities

3 weeks ago 5854 1766 30 40