Tom Wallis
@tsawallis.bsky.social
4.5K followers 1.4K following 250 posts
Vision scientist. Professor at the Centre for Cognitive Science, Technical University of Darmstadt, Germany. 🇦🇺🇩🇪. pronoun.is/he https://www.psychologie.tu-darmstadt.de/perception
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tsawallis.bsky.social
Welcome new followers (X-iles, Swifties, ... all except Nazis are welcome on my timeline)!

I'm a vision / cognitive scientist studying visual perception in humans and sometimes machines. You can find out more about my lab's work here: www.psychologie.tu-darmstadt.de/perception/h...

#visionscience
Perception
Perception – Somehow, our minds make sense of sensory data in a way that eludes current machine vision systems. We study visual perception in humans using psychophysics and computational models. A sec...
www.psychologie.tu-darmstadt.de
Reposted by Tom Wallis
shahanmemon.bsky.social
The future of peer review is here.

Introducing Nature Instant!

We've automated rejection so you can get disappointed faster. Because why wait 6 months for reviewer 2 when you can get roasted by an #AI in seconds?

Here is how it works.

#AI4Science #PeerReview #FictionScience #FiSci #AAAI #ScAISci
Showing a fictitious system for submitting manuscripts called "Nature Instant" showing bot choices for authors to choose from as initial AI-based peer reviewers. The bots are trained on real human reviewer data.
Reposted by Tom Wallis
brialong.bsky.social
We’re recruiting a postdoctoral fellow to join our team! 🎉

I’m happy to share that I’ve opened back up the search for this position (it was temporarily closed due to funding uncertainty).

See lab page and doc below for details!
Reposted by Tom Wallis
williamngiam.github.io
What annotations / metadata do you wish was included with every #cogsci dataset (especially #workingmemory folks 👀)? My current list includes the experiment task, stimulus, level of data (trial-, subject-, or group-level), format, and whether analysis code is provided. Any more?
Reposted by Tom Wallis
thecharleywu.bsky.social
Me and @watarutoyokawa.bsky.social want to thank everyone who attended, presented at, and helped organize #COSMOS2025! If you weren't able to make it, all teaching materials are already online and we'll be uploading videos of all talks soon cosmossummerschool.github.io/materials/
Reposted by Tom Wallis
sampendu.bsky.social
Long time in the making: our preprint of survey study on the diversity with how people seem to experience #mentalimagery. Suggests #aphantasia should be redefined as absence of depictive thought, not merely "not seeing". Some more take home msg:
#psychskysci #neuroscience

doi.org/10.1101/2025...
Reposted by Tom Wallis
drewharwell.com
OpenAI employees are very excited about how well their new AI tool can create fake videos of people doing crimes and have definitely thought through all the implications of this
Reposted by Tom Wallis
tuda.bsky.social
👋 Herzlich willkommen an der TU, Prof. Charley Wu!
Der Kognitionswissenschaftler verstärkt die Humanwissenschaften und im Bereich Computational Cognitive Science. Zum Start haben wir ihm ein paar Fragen gestellt 👉 www.tu-darmstadt.de/universitaet... @thecharleywu.bsky.social @hessianai.bsky.social
Reposted by Tom Wallis
aoc.bsky.social
Most of the power authoritarians have is freely given. We should not comply with them in advance.

Trump is far weaker than he looks. So is the GOP. We should draw them out, drain them at every opportunity, and fight for people’s wellbeing at every turn.

We have been sent here to fight for people.
acyn.bsky.social
AOC: I think there's two things that are happening at once: One, there absolutely is an unprecedented abuse of power, destruction of norms, erosion of our government and our democracy in order to prop up an authoritarian style of governance

However, they are weaker than they look…
Reposted by Tom Wallis
glupyan.bsky.social
A wild exchange with Gemini Pro 2.5. In preparing some examples for my seminar (cogsci-llms.netlify.app) I remembered @randomwalker.bsky.social old tweet about playing Rock paper scissors with LLMs. Decided to see what it's like now ....
Reposted by Tom Wallis
vincentab.bsky.social
{tinytable} 0.14.0 for #RStats makes it super easy to draw tables in html, tex, docx, typ, md & png.

There are only a few functions to learn, but don't be fooled! Small 📦s can still be powerful.

Check out the new gallery page for fun case studies.

vincentarelbundock.github.io/tinytable/vi...
a table about lemurs a table about students and schools a table about wines
Reposted by Tom Wallis
tsawallis.bsky.social
Tessa is great; go work with Tessa!
tessamdekker.bsky.social
We’re hiring! We’re looking for two RAs to study neuroplasticity in sight loss, sight rescue and development in children and adults @ucl.ac.uk using a wide range of neuroimaging and behavioral methods. Please help spread the word! Apply by 16 Oct! t.ly/q3aYe #neurojobs #NeuroSkyence
Research Assistant at UCL
Recruiting now: Research Assistant on jobs.ac.uk. Click for details and explore more academic job opportunities on the top job board
t.ly
Reposted by Tom Wallis
bwjones.bsky.social
It’s @laurensr.bsky.social telling us about her verrry cool work in evolutionary diversity in vision science at #Visionarium2025
It’s Lauren Sumner-Rooney talking at the lectern about evolutionary diversity in vision.
Reposted by Tom Wallis
hakwan.bsky.social
paper is up~

This study examines performance evaluation in perceptual detection tasks using response-time-based signal detection theory (SDT) analysis. A defining feature of detection tasks is the asymmetry between trials with stimulus presence and absence, often reflected in ....
hakwan.bsky.social
detection d' is generally overestimated, coz we tend to be too lazy to collect the necessary data in order to correct for the unequal variance between target present vs absent distributions. turns out we can do this for free - using reaction times data. so, let's do it~

osf.io/preprints/ps...

🧠📈
OSF
osf.io
Reposted by Tom Wallis
aaronhertzmann.com
Here is my commentary on @ruthrosenholtz.bsky.social's BBS paper. I point out deep parallels between topics in 2D and 3D human vision that are usually studied separately: summary statistics and attention in 2D, and 3D vision. This suggests studying them together. psyarxiv.com/dz3rx_v2
OSF
psyarxiv.com
Reposted by Tom Wallis
mamassian.bsky.social
A nice shift in perceived colour between central and peripheral vision. The fixated disc looks purple while the others look blue.

The effect presumably comes from the absence of S-cones in the fovea.

From Hinnerk Schulz-Hildebrandt:
arxiv.org/pdf/2509.115...
An array of 9 purple discs on a blue background. Figure from Hinnerk Schulz-Hildebrandt.
Reposted by Tom Wallis
economeager.bsky.social
I fear somebody in the Australian government may have misunderstood the meaning of pull requests
tsawallis.bsky.social
If you're paid to collect the data (e.g. as an RA) and you *also* sign on to be (partly) responsible for the manuscript content and its veracity, then authorship may be warranted. More so if you also made any kind of design or analysis contribution.
tsawallis.bsky.social
Should an undergraduate RA be accountable for inaccuracies? imo: if they're not an author, then absolutely not. (see e.g. Gino case -- the "it was the RA" defence). In other words:
tsawallis.bsky.social
Thanks for your thoughts here Alex. I think detailed contribution statements are great and should be mandatory. For me, one thing that differentiates contributorship from authorship is a certain level of responsibility for the content of the manuscript...