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roxana-zeraati.bsky.social
In search of computational principles of natural adaptive behavior. Postdoc with Peter Dayan @mpicybernetics.bsky.social http://roxanazeraati.org/
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What should count as a good model of intelligence? AI is advancing rapidly, but how do we know if it captures intelligence in a scientifically meaningful way? We propose the *NeuroAI Turing Test*—a benchmark that evaluates models based on both behavior and internal representations.

Re-posting is appreciated: We have a fully funded PhD position in CMC lab @cmc-lab.bsky.social (at @tudresden_de). You can use forms.gle/qiAv5NZ871kv... to send your application and find more information. Deadline is April 30. Find more about CMC lab: cmclab.org and email me if you have questions.

I'm biased, we are collaborating. But there is a reason we are collaborating: I find Shervin to be one of the brightest and kindest scientists I've had the opportunity to meet. This is a great opportunity if you're considering grad school

New work accepted to #AISTATS2025 ✨ We developed a new explainable AI method to better understand time-series data. We can map back inputs (neurons) to their latent space. Basically merging #CEBRA with measuring the individual neurons contribution over time arxiv.org/abs/2502.12977

Excited that Adam Lowet's PhD work has been just been published in @nature.com at doi.org/10.1038/s415.... He has already posted about it on Twitter/X (see twitter.com/Adam_Lowet/s...), but let me re-post his thread here. 1/9

In our Learning Club @cmc-lab.bsky.social today (= Feb 20, Thursday, 2 PM CET), @nosrat.bsky.social will tell us about his recent preprint (bsky.app/profile/nosr...). If you'd like to attend, send an empty email to [email protected] to get the link!

📣 Excited to announce our workshop "Agent-Based Models in Neuroscience: Complex Planning, Embodiment, and Beyond" at the upcoming @cosynemeeting.bsky.social #CoSyNe2025! 🧠🤖 🪱🪰🐟🐝🐭💪 Schedule: neuro-agent-models.github.io 🗓️ Join us in Mont-Tremblant, Canada, on March 31!

📢 Excited to share our new paper out today in Nature Neuroscience! 🧠✨ We uncover how compartmentalized dendritic plasticity in the retrosplenial cortex (RSC) links contextual memories formed close in time. A thread 🧵👇 [1/8] nature.com/articles/s41...

Yes, many worrying things happening in science that should take priority in grabbing our attention - but we are worried precisely because scientific knowledge is worth creating. In that spirit, I am proud to highlight our latest @biorxivpreprint.bsky.social preprint! #neuroscience 🧪

1/12 How do animals build an internal map? In our new paper, we tracked thousands of mouse CA1 neurons over days/weeks as they learned a VR navigation task. @nspruston.bsky.social & co-1st author @johanwinn.bsky.social Video: www.youtube.com/watch?v=yw_4... Paper: www.nature.com/articles/s41...

Our new paper with @chrismlangdon is just out in @natureneuro.bsky.social! We show that high-dimensional RNNs use low-dimensional circuit mechanisms for cognitive tasks and identify a latent inhibitory mechanism for context-dependent decisions in PFC data. www.nature.com/articles/s41...

Posting this great piece by @analog-ashley.bsky.social for prospective grad students this cycle medium.com/the-spike/ch... #neuroscience

Come along to my (free, online) UCL NeuroAI talk next week on neural architectures. What are they good for? All will finally be revealed and you'll never have to think about that question again afterwards. Yep. Definitely that.

Escape the news cycle madness and discover how ants oscillate around pheromone trails to navigate. Cool follow-up on yesterday’s grid cell left/right alternation study 😉 @azvollan.bsky.social @rjgardner.bsky.social @edvardmoser.bsky.social @m-bmoser.bsky.social

If you sometimes feel lost or burned out during your PhD, you are not alone 🫂 Listen to our latest episode to get advice and honest insights 🎧 (stoked for our first episode in English - long overdue 😁)

It's finally out! Visual experience orthogonalizes visual cortical responses Training in a visual task changes V1 tuning curves in odd ways. This effect is explained by a simple convex transformation. It orthogonalizes the population, making it easier to decode. 10.1016/j.celrep.2025.115235

New preprint: "The geometry of the neural state space of decisions", work by Mauro Monsalve-Mercado, buff.ly/42wVHD5. Surprising results & predictions! (Thread) We analyze neuropixel population recordings in macaque area LIP during a reaction time, random-dot motion 1/

This summer we are partnering with TReND to host a computational neuroscience course, built on our tools and data, for students from across the African continent. Simangele Shablala, a Ph.D. student at University of KwaZulu-Natal, shared the impact of last year's course in Rwanda. #neuroskyence

🚨Important paper alert (a bit late, but see below) Guo et al show that while place cells may not initially form a manifold reflecting the environment's topology, the topology is learned across days, during sleep. www.cell.com/cell-reports... Another story to tell about this paper 👇 1/5

WOW cool paper by @david-g-clark.bsky.social Abbot & Sompolinsky I like it for many reasons: 1) Instead of training networks & comparing to data, they constrain a network on the data (e.g. actual tuning curves, not idealized ones) & derive network properties www.biorxiv.org/content/10.1... 1/4

A spatial topographic map (“suckerotopy”) in the octopus What's cooler than brains??? www.nature.com/articles/s41... #neuroscience

Our paper from Junchol Park and collaborators that has been brewing for a while. Trying to capture our thinking about what action specification in striatum means and what would constitute evidence for such a model. Longer thread soon, but it’s online now. www.cell.com/neuron/fullt...

Causal inference in audition: www.nature.com/articles/s41...

What's the right way to think about modularity in the brain? This devilish 😈 question is a big part of my research now, and it started with this paper with @solarpunkgabs.bsky.social, finally published after the first preprint in 2021! 🤖🧠🧪 www.nature.com/articles/s41...

Thanks to the yield of U arrays, we were able for the 1st time AFAIK to average across neurons (not trials) and see memory bumps on single trials. Look at this 😍 Not the focus of the work but it taps into an open debate on the neural mech. of WM cf @cconstan.bsky.social @earlkmiller.bsky.social

In our Learning Club @cmc-lab.bsky.social (today = Jan 16, Thursday, 2 PM CET), Naoto Yoshida will tell us about his recent homeostatic RL work (www.sciencedirect.com/science/arti...). If you'd like to attend, send an empty email to virtual-talk-link [email protected] to get the link!

Neuroethology of natural actions in freely moving monkeys www.science.org/doi/10.1126/... - neural activity in freely moving conditions is richer and more generalizable than in restrained conditions

Curious how place cells adapt to uncertainty in reward location? We found that predictable changes boost “reward place cells” & warp hippocampal maps. Check out our new preprint: with Feng Xuan, Jack Mellor, Peter Dayan and Dan Dombeck: www.biorxiv.org/content/10.1...

"exhaust fumes" made it into the official abstract! hence completing the journey from an epiphenomenal shitpost blog to a full-blown review paper. all thanks to this cast of co-authors (esp. Sander), our TICS editor Lindsey Drayton, and two very engaged reviewers (@danielemarinazzo.bsky.social)

New results for a new year! “Linking neural population formatting to function” describes our modern take on an old question: how can we understand the contribution of a brain area to behavior? www.biorxiv.org/content/10.1... 🧠👩🏻‍🔬🧪🧵 #neuroskyence 1/

Two papers out showing that thalamic inputs determine how cortex responds to a hierarchical task with rule switching: www.nature.com/articles/s41... journals.plos.org/plosbiology/... 🧠📈 🧪

🚨Our paper on how the cerebellum learns to drive cortical dynamics for rapid task learning and switching, which we propose can then be consolidated in the cortex @naturecomms.bsky.social nature.com/articles/s41... 🧠 #compneuro

New work from @declanrowley.bsky.social & I - where we use simulations, and reanalysis of published data to argue that most of the higher order visual areas in the mouse are really subparts of a single area V2. We want feedback, specially from anyone who disagrees. www.biorxiv.org/content/10.1...

Cutting it a bit fine, but here’s my review of the year in neuroscience for 2024 The eighth of these, would you believe? We’ve got dark neurons, tiny monkeys, the most complete brain wiring diagram ever constructed, and much more… Published on The Spike Enjoy! medium.com/the-spike/20...

“Women leave or consider leaving [faculty positions] because of workplace climate more often than work-life balance.” www.science.org/doi/10.1126/...

📢📢📢 I am very excited to share this new study from the lab! Leveraging large-scale neuropixel recordings across cortex and thalamus, we show how motor circuits do sensory planning and how this improves reaching.

It was fun to write this article with Gaby and thank you @bensaunders.bsky.social @bellonec.bsky.social for the opportunity! "How dopamine enables learning from aversion" 🔜 I think we're in for a lot more cool science on this topic in the next few years

And the same for Python is here: python-graph-gallery.com/color-palett...

The Dimensions of dimensionality www.cell.com/trends/cogni... #neuroscience

In our Learning Club @cmc-lab.bsky.social (today = Dec 19, Thursday, 2 PM CET), @veronika-koren.com will tell us about her recent work (elifesciences.org/reviewed-pre...). If you'd like to attend, send an empty email to virtual-talk-link [email protected] to get the link!

Happy to share my second paper with Peter Dayan on our decision-theoretic approach to perceptual multistability (see the tweeprint of the first paper here x.com/neuroprincip...). Paper: A decision-theoretic model of multistability biorxiv.org/content/10.1...

With “Tübingen Women in Machine Learning”, Claire Vernade and her team have created a local community. Their aim is to empower women and make them more visible. Read more on our blog: www.machinelearningforscience.de/en/a-network... @twiml.bsky.social #TWiML #WiML

The geometry of adaptation! My first excursion in the V1 territory. Great collaboration with @mariodipoppa.bsky.social @matteocarandini.bsky.social and many others

A little update to include a few more interesting examples (and tiny typos corrected 🤓) thanks to those who gave feedback! ❤️🥳 #AI #ML4Neuroscience arxiv.org/abs/2411.15234

A decision-theoretic model of multistability: perceptual switches as internal actions https://www.biorxiv.org/content/10.1101/2024.12.06.627286v1

Nice to see this paper out from Jack Lindsey and his collaborators: elifesciences.org/reviewed-pre... They diagnose a fundamental problem with existing models of striatal plasticity, show how to fix it, and then reanalyze data from recordings of striatal projection neurons to support the model.

I wanted to re-up this, now that Bluesky has blown up. 😁 If you're in #NeuroAI, or computational #neuroscience more broadly, and interested in learning rules, check out this preprint from @repromancer.bsky.social and @rmnpogodin.bsky.social!

So I had a thought: what would the final systems neuroscience paper look like? My latest column for @thetransmitter.bsky.social gives my answer- what’s yours?

Another fascinating study from the Yasuda lab: www.nature.com/articles/s41... CaMKII inhibition immediately after training impairs memory transiently. Memory recovers a day later!