Sign in

Roxana Zeraati

@roxana-zeraati.bsky.social
1.7K followers 805 following 121 posts

Co-PI @cmc-unit.bsky.social & Group Leader @mpicybernetics.bsky.social. In search of computational principles of natural adaptive behavior. Previously, postdoc with Peter Dayan; PhD with Anna Levina and Tatiana Engel. Website: roxanazeraati.org

PostsRepliesMedia
Reposted by Roxana Zeraati
Shervin Safavi @neuroprinciplist.bsky.social · 28/09/2026
We are thrilled 🥳 to share that we’re joining forces with @roxana-zeraati.bsky.social to establish a joint research unit, @cmc-unit.bsky.social integrating embodied and natural decision making across species! We also have open PhD and postdoc positions (check below for more info) 🎉
210119
Reposted by Roxana Zeraati
COSYNE @cosynemeeting.bsky.social · 9h
#COSYNE2027 deadline is just around the corner: 🧠📜 18 October 2026! 📜🧠 Check below for more on key dates and abstract submission: www.cosyne.org/abstracts-su...
cosyne.org
Abstract Submission — COSYNE
Submit your COSYNE 2027 abstract; double‑blind, 2-page PDF. Opens Sept 11, 2026. Deadline and guidelines inside.
033
Reposted by Roxana Zeraati
COSYNE @cosynemeeting.bsky.social · 9h
If you plan to attend #COSYNE2027 and need a letter of invitation for your visa, you can request it now; there's no need to wait for abstract acceptance or registration to open 😉 www.cosyne.org/visa-entry-i...
cosyne.org
Visa & Entry Information — COSYNE
Visa, eTA, invitation letter, and entry information for international attendees traveling to Montréal, Canada for COSYNE 2027.
023
Reposted by Roxana Zeraati
COSYNE @cosynemeeting.bsky.social · 9h
Call for COSYNE workshops is open! The deadline is November 1: www.cosyne.org/workshops-call If you plan to organize one, start early!
cosyne.org
Call For Proposals — COSYNE
Submit a workshop proposal for COSYNE 2026 in Cascais, Portugal. Proposals due October 23, 2025. Explore emerging topics in systems neuroscience.
054
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
We, the Natural Decision Making Group and the Embodied Decision Making Group, are joining forces to establish the CMC Unit, a joint research unit to uncover computational, biological, and ecological principles underlying adaptive decision-making. You can read more about us here: cmc-unit.org
26310
Reposted by Roxana Zeraati
COSYNE @cosynemeeting.bsky.social · 05/10/2026
If you are eligible to apply, you shouldn't miss it! According to our last cohort, Attending COSYNE was a transforming experience!
0103
Roxana Zeraati @roxana-zeraati.bsky.social · 30/09/2026
If you’re attending #BernsteinConference, don’t miss our contributed talk today on how considering embodied constraints (motor control + homeostasis) affects decision making during foraging!
0142
Roxana Zeraati @roxana-zeraati.bsky.social · 30/09/2026
If you’re interested in how to identify behaviorally relevant dynamic modes in continuous time naturalistic tasks without any pre-defined trial structure make sure to check @maxschwabe.bsky.social’s poster today at #BernsteinConference.
0154
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
CMC Unit is heading to @bernsteinneuro.bsky.social , with 1 workshop, 1 contributed talk in the main meeting, and 4 wonderful posters (see thread 👇 for details), and tons of excitement for discussions and new ideas!
184
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
II-74 (Tue, Sep. 29, 18:00): @clairesturgill.bsky.social will tell you about neural signatures of internal decision-making in the monkey vlPFC. If you want to learn more about how sensory value influences percept selection, come check it out! abstracts.g-node.org/conference/B...
abstracts.g-node.org
152
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
II-56 (Tue, Sep. 29, 18:00): @armanbehrad.bsky.social will tell you about a fast and furious method🏎️ for dynamical similarity analysis: bsky.app/profile/arma... abstracts.g-node.org/conference/B...
abstracts.g-node.org
Bernstein Conference 2026
Conference Abstracts
152
Reposted by Roxana Zeraati
Motahareh @motaharehpr.bsky.social · 27/09/2026
Exciting!!! This is exactly the kind of question I think is incredibly interesting and timely right now. Really looking forward to seeing what comes out of this project. If you’re thinking about a PhD/postdoc in computational neuroscience/NeuroAI, definitely worth checking out!
042
Roxana Zeraati @roxana-zeraati.bsky.social · 28/09/2026
We are thrilled 🥳 to share that we’re joining forces with @neuroprinciplist.bsky.social to establish a joint research unit, @cmc-unit.bsky.social integrating natural and embodied decision making across species! We also have open PhD and postdoc positions (check below for more info) 🎉
37613
Reposted by Roxana Zeraati
Lilian Weber @lilweb.bsky.social · 28/09/2026
✨New PhD Position!✨ Come and work with us on understanding cognition with a mix of cognitive modelling and ultrasound neuromodulation! More info on the lab & position: mic-lab.de/positions/ph... Official job ad: tinyurl.com/miclab-phd 🙏Please RT - deadline is Oct 14 ‼️
mic-lab.de
Research Associate (m/f/d): Models, Interventions, and Cognition — MIC-Lab
Models and interventions of cognition.
04238
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
PhD: nextcloud.tuebingen.mpg.de/index.php/s/... Postdoc: nextcloud.tuebingen.mpg.de/index.php/s/...
162
Reposted by Roxana Zeraati
CMC Unit @cmc-unit.bsky.social · 27/09/2026
We now have open positions in both of our research hubs: a postdoc position at MPI for Biological Cybernetics (Tübingen) and a PhD position at TU Dresden (Dresden), co-supervised by @neuroprinciplist.bsky.social and @roxana-zeraati.bsky.social. See below for more information 👇
132
Reposted by Roxana Zeraati
Arman Behrad @armanbehrad.bsky.social · 22/09/2026
How do internal states shape foraging, decisions, and adaptation in a changing world? 🧠🌍 @clairesturgill.bsky.social and I are organizing a #BernsteinConference satellite workshop bringing together lab and wild perspectives on adaptive behavior. Join us 😉
36117
Reposted by Roxana Zeraati
Marlene Berke @marleneberke.bsky.social · 14/09/2026
Do non-human primates have theory of mind? My new paper takes a new computational approach to this classic question. We implemented verbal theories of primates' mental representations as computational models. These models completed classic visual perspective-taking tasks.
29034
Reposted by Roxana Zeraati
Fernando Garcia-Moreno @phylobrain.bsky.social · 18/09/2026
The cerebral cortex that is reading this sentence (yours, to be explicit) did not come out of nowhere. It has evolved over hundreds of millions of years... To study this evolutionary process, we decided to focus on non-avian reptiles for our new paper in Cerebral Cortex 🐢🦎🧠 🧵
24120
Reposted by Roxana Zeraati
Christopher Honey @chrishoney.bsky.social · 16/09/2026
1/ How do we sustain mental continuity in the face of interruption? @xianl-explorer.bsky.social found that, while people listen to a story, posterior medial cortex expresses a slowly evolving "background" representation of the story's context, which survived through silence and interfering tasks.
A schematic figure showing an evolving timeline of mental context during an interrupted narrative.
26828
Reposted by Roxana Zeraati
Jeremiah Cohen @jeremiahycohen.bsky.social · 16/09/2026
Happy to share the version of record of our locus coeruleus paper here: www.nature.com/articles/s41... Prior thread on some of our discoveries in this study: bsky.app/profile/jere...
nature.com
Topographic structure and function of locus coeruleus noradrenaline neurons - Nature
Dorsal and ventral noradrenergic neurons in the locus coeruleus form topographic subpopulations whose projection patterns and activity encode choice switching, reward-prediction errors and disregard o...
813452
Reposted by Roxana Zeraati
Katrin Vogt @katrinvogt.bsky.social · 04/09/2026
Excited to finally see this one out from my postdoc lab 🥳🪰🐛 How and when is olfactory information integrated across brain hemispheres? The larval Drosophila mushroom body balances lateralized sensing and interhemispheric integration | Science Advances www.science.org/doi/10.1126/...
science.org
The larval Drosophila mushroom body balances lateralized sensing and interhemispheric integration
Bilaterian animals must integrate sensory input from both sides of their bodies to make coherent perceptual decisions. In Drosophila larvae, olfactory receptor neurons target the ipsilateral brain hem...
0247
Reposted by Roxana Zeraati
Matteo Carandini @carandinilab.net · 04/09/2026
Brainwide Representation of Navigation Enny recorded >20k neurons across forebrain and midbrain while mice navigated 1D VR. She found that every region encodes spatial position! Hippocampal formation stands out only in uniformity of the representation. But visual cortex beats it in precision...
03511
Reposted by Roxana Zeraati
Kayson Fakhar @kayson.bsky.social · 02/09/2026
🚨 8 months after, this paper found its home at Science Advances. We came up with a generative brain network model based on game theory and found that the human brain is suboptimal both in terms of wiring cost and communication efficiency. Here's why: www.science.org/doi/10.1126/...
45621
Reposted by Roxana Zeraati
Erin Rich @erinlrich.bsky.social · 02/09/2026
Hey, we’ve been studying mnemonic chunking in🐒! With @fkchiang89.bsky.social Here’s the rundown: 🧵 www.cell.com/current-biol...
cell.com
Compression as a neural mechanism of mnemonic chunking in prefrontal cortex
Chiang and Rich show that macaques spontaneously chunk spatial targets in a self-ordered working memory task. dlPFC neurons compress chunked targets into lower-dimensional representations that are shi...
16921
Reposted by Roxana Zeraati
International Society for Neuroethology @neuroethology.org · 01/09/2026
Olfactory cues are undoubtedly relevant for fruitflies seeking for rotten 🍊🍒🍐🍌. The Ruta demonstrates the neural computations of olfactory-guided vector memories in the central complex and their relevance for plume tracking. www.nature.com/articles/s41...
nature.com
A vector-based strategy for olfactory navigation in Drosophila - Nature
Using a virtual reality system, experiments in Drosophila show that flies use memory mechanisms to navigate along the boundary of an odour plume and track the source of a smell.
02610
Reposted by Roxana Zeraati
Dexter Tsin @dextertsin.bsky.social · 30/08/2026
Excited to see this review out! We explored two complementary frameworks for social learning. MARL is top-down: specify reward functions, watch strategies emerge. IRL is bottom-up: infer them from tracked poses in units of behavior syllables. Together they could close an in vivo/ in silico loop.
0164
Reposted by Roxana Zeraati
Matthew Apps @brainapps.bsky.social · 28/08/2026
Out now @natcomms.nature.com. how do deadlines shape effort processing? We show that deadlines cause us to seek high effort rather than avoid it. Why? Becease effort makes progress towards completing goals, making it valuable, a process coordinated by fronto-striatal computations.
nature.com
Neural and computational mechanisms of effort under the pressure of a deadline - Nature Communications
People are effort-averse in most situations but can exert effort for little reward when progressing towards goals. Here, the authors show that under deadline pressure people become effort-seeking whil...
14416
Reposted by Roxana Zeraati
Payam Piray @payampiray.bsky.social · 28/08/2026
I am happy to share some good news: my lab has received an NSF CAREER award and an NIH R01 this summer, supporting our work on how the brain handles uncertainty during learning. We will be hiring postdocs and PhD students in the coming year, so please get by email in touch if you are interested.
03211
Reposted by Roxana Zeraati
Rui Ponte Costa @somnirons.bsky.social · 27/08/2026
How does the brain continually adapt? Fresh in @natureportfolio.nature.com our super exciting collaboration with @mark-j-wagner.bsky.social showing that the cerebellum contextualises cortical dynamics enable multi-task learning: www.nature.com/articles/s41...
nature.com
Granule cells reorient cortical trajectories to separate contexts - Nature
Simultaneous imaging of premotor cortex and cerebellar granule cells in mice learning two skills in parallel shows that trajectories generalize in cortex but coherently reorient apart in granule cells...
19628
Reposted by Roxana Zeraati
Adrian Roggenbach @a-roggenbach.bsky.social · 24/08/2026
⚠️PREPRINT ALERT⚠️ How can we better understand distributed brain activity across temporal and spatial scales? In this collaborative project, we combined ultra-flexible electrodes with two-photon imaging to illuminate brain-wide neural dynamics. Link: doi.org/10.21203/rs.... 1/8
13211
Reposted by Roxana Zeraati
Dr. Jan Zimmermann @janzimmermann.bsky.social · 27/08/2026
Tour de force !
151
Reposted by Roxana Zeraati
Harrison Ritz @hritz.bsky.social · 27/08/2026
Our task-switching paper is now out at Current Biology! www.cell.com/current-biol... We find that that our brains reset to a task-neutral state between trials, providing flexibility when the upcoming task is uncertain. RNNs also learn this strategy, but only when trained to switch tasks.
schematic of how a brain might reset to a neutral state between trials
315665
Reposted by Roxana Zeraati
Lénárd Döme @lenarddome.bsky.social · 14/07/2026
📢 Out now in PLOS Comp Biol: **cpm** — a Python library for theory-driven modelling in computational psychiatry. No scikit-learn for mechanistic cognitive models — so we built one: RL, prospect-theory & metacognition, hierarchical Bayes, and as many more as you can code 🔗 doi.org/10.1371/jour...
doi.org
cpm: A python library for theory-driven modelling in computational psychiatry
Author summary Computational psychiatry is a field that makes extensive use of computational methods to understand mental health. In this field and related disciplines, there is a strong need to desig...
12813
Reposted by Roxana Zeraati
Graziana Gatto @ggatto.bsky.social · 25/08/2026
New PNAS paper from our lab! 🪰🐭👩‍🦰 We developed a toolbox AutoGaitA to compare locomotion across species, revealing conserved velocity gradients and aging effects despite divergent strategies for propulsion. A step toward understanding conserved principles of motor control. doi.org/10.1073/pnas...
doi.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
1279
Reposted by Roxana Zeraati
Martin Hebart @martinhebart.bsky.social · 24/08/2026
I have been meaning to write a post about a preprint that I'm pretty excited about: www.biorxiv.org/content/10.6... In neuroscience we often assume that we can learn something general about “the brain” using different species. But is this true? Do monkeys even see the world the way we do?
On the left, an image of a rhesus macaque looking towards its left, and on the right, an AI-generated zoomed-out rendering of a human in the same pose. Both are looking.
36022
Reposted by Roxana Zeraati
Julijana Gjorgjieva @gjorjulijana.bsky.social · 23/08/2026
Supper happy to see this published. In short, we show how dendrites and inhibition allow neural circuits to learn new representations while protecting representations that are already stored in the network. See below for a detailed post by @cmiehl.bsky.social: www.sciencedirect.com/science/arti...
sciencedirect.com
18523
Reposted by Roxana Zeraati
Ricard Solé @ricardsole.bsky.social · 22/08/2026
Does time flow differently inside an embryo? A new universal law reveals that, across animal species, early cell cycles slow according to the same hyperbolic pattern and even predicting the onset of gastrulation. @nicolettapetridou.bsky.social @embl.org check the paper: arxiv.org/pdf/2605.13234
1295
Reposted by Roxana Zeraati
Johnston Lab @inchinn.bsky.social · 28/07/2026
🚨 New preprint from the lab: satiety impairs odour-guided food finding in mice. We show that insulin acts on PG cells in the olfactory bulb, inhibiting the Kv1.3 potassium channel, boosting their activity, and dampening olfactory nerve input 🧠🧪 doi.org/10.64898/202...
doi.org
Insulin controls olfactory gain at the first central synapse by regulating periglomerular neuron excitability
Sensory processing is dynamically tuned by internal state, yet how metabolic signals reshape the earliest stages of sensory circuits remains poorly understood. Here we identify a circuit mechanism by which satiety suppresses olfactory sensitivity at the first central synapse in the mouse olfactory bulb. Using a within-animal paradigm modelling fasted and glucose-induced sated states, we show that satiety impairs food-finding behaviour and reduces olfactory receptor neuron input to the olfactory bulb. Periglomerular (PG) cells, which co-express insulin receptors and the potassium channel Kv1.3, mediate this effect: insulin inhibits the low-voltage-activated Kv1.3 current in PG cells, increasing their spontaneous and odour-evoked activity. This heightened PG cell activity drives enhanced presynaptic inhibition of olfactory receptor neuron terminals, dampening sensory input before it reaches mitral cells. These findings establish insulin-dependent presynaptic inhibition of PG cells as a key locus of state-dependent sensory gain control. ### Competing Interest Statement The authors have declared no competing interest. Medical Research Council, https://ror.org/03x94j517, MR/V003747/1 Biotechnology and Biological Sciences Research Council, BB/ Z51679X/1
0125
Reposted by Roxana Zeraati
Romy Lorenz @romy-lorenz.bsky.social · 21/08/2026
Please share widely! 🚀 I am recruiting a PhD student for an exciting cross-species collaborative project using layer fMRI to investigate how interoception shapes cognitive control - Application deadline is: 1.10.2026 - Start: Jan 2027 www.mpg.de/26934670/phd...
mpg.de
PhD Position (m/f/d) | Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
PhD Position in Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
17064
Reposted by Roxana Zeraati
Venki Murthy @neurovenki.bsky.social · 21/08/2026
New preprint! Taking inspiration from ML where train-test split is critical to show that an agent is generalizing rather than just memorizing, we did some experiments that suggest mice have an inductive bias towards generalization. Led by an amazing graduate student Ningjing Xia. See what you think!
biorxiv.org
An inductive bias for generalization in mouse olfactory learning
Animals must generalize from limited experience, yet behavioral experiments in the laboratory setting rarely assess whether or how rapidly they generalize. This contrasts with machine learning systems...
1337
Reposted by Roxana Zeraati
Herbert Wu @herbertwu.bsky.social · 20/08/2026
First study out! Using a new cooperative paradigm and multi-agent inverse RL, we show that mice spontaneously adopt leader/follower roles, and the prefrontal cortex encodes these role dynamics and an egocentric social value map of the partner’s position. (1/3) www.nature.com/articles/s41...
nature.com
Asymmetric prefrontal representations for leader–follower dynamics - Nature
Mice spontaneously form leader and follower roles during cooperation, and the medial prefrontal cortex encodes these role dynamics and an egocentric social value map of the partner’s position.
48124
Reposted by Roxana Zeraati
Tatiana Engel @engeltatiana.bsky.social · 19/08/2026
Difficult decisions take time, but can we keep all accumulated evidence in mind long enough to make better choices? We find that working-memory limitations constrain decision-making, and these effects are modulated by dopamine. biorxiv.org/content/10.6... bioRxiv out with Cina Aghamohammadi et al.
biorxiv.org
Working memory limitations and dopamine modulation in probabilistic reasoning
Difficult decisions require gathering evidence over extended periods, placing demands on working memory. Yet, how working memory limitations affect decision-making remains largely unknown. We trained ...
27420
Reposted by Roxana Zeraati
Matteo Carandini @carandinilab.net · 17/08/2026
I am proud of this paper. Since it came out in 2022 it has received 0 citations (yes that's a zero). But multiple young scientists have found it useful! (from other labs, so they were not coerced...). Perhaps you will find it useful too? SOME TIPS FOR WRITING SCIENCE doi.org/10.1523/ENEU...
doi.org
Some Tips for Writing Science
When preparing a scientific paper, we typically write with coauthors who have different backgrounds and styles, and we target readers who have little time and patience. To help both readers and writer...
616554
Reposted by Roxana Zeraati
Alireza Modirshanechi @modirshanechi.bsky.social · 15/08/2026
Excited to share that I'll be starting as a junior professor and Emmy Noether awardee at the University of Göttingen this October! 🥳 🚀 I'll be hiring #phd students and #postdoc across #machinelearning, #neuroscience and #cogsci: modirlab.github.io/open-positio... Please spread the word! 🙏
PhD ad informationPostdoc ad informationInformation about Göttingen and equal opportunities
1217059
Reposted by Roxana Zeraati
Blake Richards @tyrellturing.bsky.social · 11/08/2026
1/15) What could drive AI agents to cooperate with each other, even if there is no chance for reciprocity or pay back? 🤔 🧵 Our team at Google, Paradigms of Intelligence, uncovered new paths to cooperation and a new game theory for foundation models 👇
An image of two robots high-fiving
16114
Reposted by Roxana Zeraati
Tianyuan Teng @tyteng.bsky.social · 13/08/2026
You'd think people prefer the simplest explanation of an uncertain world — Occam's razor. Our data says no, across 2 modalities, 2 tasks, 8 experiments: people often perceive illusory structure that isn't there and prefer moderate complexity. Out now in Nature Comms! www.nature.com/articles/s41...
nature.com
Human learning of probability distributions is biased toward moderate structural complexity - Nature Communications
Humans build internal models from online observations to adapt to new environments. Here, the authors show that individuals are biased towards building models with moderate structural complexity, rega...
15519
Reposted by Roxana Zeraati
Dan Levenstein @dlevenstein.bsky.social · 11/08/2026
If you’re interested to do an interdisciplinary co-mentored, field transition, or open ended theory/computation postdoc at WTI, please get in touch!
0259
Reposted by Roxana Zeraati
Laura Driscoll @lndriscoll.bsky.social · 08/08/2026
Confused about all this talk of compositionality in neuroscience? Read our new perspective www.nature.com/articles/s41... with authors Reidar Riveland and Alex Pouget.
nature.com
The compositionality continuum as a principle for studying the neural basis of intelligence - Nature Neuroscience
Compositionality exists on a continuum of increasing complexity rather than as a binary trait. Studying its implementation in simpler biological and artificial systems is the most tractable path towar...
212043