Find me at #CCN2026 presenting my poster on the 5th of August in NYC. I'll be obsessing over World Models and why they are so much more interesting when they're probabilistic! You can also find my poster online at: drive.google.com/file/d/1pebH...

Can we study MTL ripples non-invasively? New preprint! We show that source-resolved MEG tracks ripple-like activity during sleep that: • localizes to the MTL • follows the canonical SO–spindle hierarchy • matches an iEEG benchmark • indexes memory reactivation www.biorxiv.org/content/10.6...

Non-invasive tracking of ripple-like activity during human sleep using MEG

Hippocampal ripples are considered a key mechanism of sleep-dependent memory consolidation. In humans, however, their direct investigation has relied on invasive recordings from patients with epilepsy...

biorxiv.org

Excited to finally share our new paper in @natcomms.nature.com: Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval www.nature.com/articles/s41... With @s-michelmann.bsky.social and @doellerlab.bsky.social

Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval - Nature Communications

How past experiences are reconstructed from memory remains unclear. Here the authors used intracranial EEG to show that hippocampal ripples reshape the geometry of cortical representations, supporting...

nature.com

Join us at @mpicbs.bsky.social as a fully funded 4-year PostDoc (m/f/d) in Cognitive & Computational Neuroscience (Area: Functions of the Perirhinal Cortex). Excellent infrastructure with a leading scientific network. Apply by 17 August: recruitingapp-5218.de.umantis.com/Vacancies/44...?

After three inspiring & great days with lectures, posters, & exchanges, our 2nd #IMPRS CoNI #SummerSchool ended two days ago. It was great! A heartfelt thank you to the speakers, participants, & organization team. See you in two years at!😍😘🧠😀 imprs-coni.mpg.de/summerschool...

Join us at the Max Planck Institute in Leipzig as a fully funded 4-year postdoc position (m/f/d) in Cognitive and Computational Neuroscience (Area: Social Cognition). Excellent infrastructure with a leading scientific network. Apply by 13 July: recruitingapp-5218.de.umantis.com/Vacancies/44...?

🧠 Next Mind Meeting Talk! Jennifer Li and Drew Robson from the RoLi Lab at @mpicybernetics.bsky.social will give a talk titled: Uncovering the neural mechanisms of spatial cognition with behavior-aware autonomous microscopes.

Doeller Lab@doellerlab.bsky.social · 6mo ago

🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!

Thanks for the invite! Really looking forward to this

CBS CoCoNUT@cbs-coconut.bsky.social · 4mo ago

Meet & discuss with the 3 winning teams 🏆 of the 🌍-wide Algonauts Challenge 2025 (@algonautsproject.bsky.social). Join us for a deep dive into predicting 🧠 activity from natural movies with teams from @mpicbs.bsky.social & Meta Research. 🗓️ April 21 | 4 PM (CET) 📍 MPI CBS & Zoom (link below)

1/N: Dear colleagues, I would like to share a new paper on the subiculum, part of my PhD with the Neural Computation Group @andrejbicanski.bsky.social @mpicbs.bsky.social . We present “A theory of subicular function and generalized vector coding” that we call Disco. www.biorxiv.org/content/10.6...

For our next Mind Meeting, we will have @virginievanw.bsky.social (Paris-Saclay University, France). She will give a talk titled "Making Sense of Time (in the brain)." 🗓 April 2 | 3:00 PM 📍 In person (Zoom available)

Doeller Lab@doellerlab.bsky.social · 6mo ago

🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!

Mehr zu unserem #Leibniz Preisträger Christian Doeller @doellerlab.bsky.social hier zum Reinhören 😀💫🏅: www.mdr.de/wissen/leibn...

Dieser Mann kennt das Navi in Ihrem Kopf | MDR.DE

Unser Gehirn hat ein eingebautes Navigationssystem: Es hilft uns, Wege zu finden und sogar Wissen zu ordnen. Der Neurowissenschaftler Christian Doeller hat dieses System entschlüsselt und erhält dafür...

mdr.de

Can whole-brain fMRI responses to naturalistic video stimuli be predicted using only transcripts? Last year, I gave a tutorial on exactly that. Since the response was very positive, I’ve now released both the tutorial notebook and the trained models publicly.

1/N: Dear cognitive map fans, I’d like to share a model I’ve been working on for a while (clearing backlog :). I show how a vector navigation architecture (VNA) and a “positional inference network” (PIN) can build Universal Cognitive Maps (UCMs) for abstract spaces. www.biorxiv.org/content/10.6...

Now out in Hippocampus. Fei Wang‘s model of Trace Vector Cells and intra-subiculum processing, consistent with know effects in CA1. onlinelibrary.wiley.com/share/CPZPYM...

Our new preprint is out on bioRxiv! @doellerlab.bsky.social We show that eye-movement sequences actively organize information by aligning with underlying structure and flexibly adapting to cognitive demands in working memory. www.biorxiv.org/content/10.6...

Reminder: This is happening tomorrow. @lukaskunz.bsky.social will be giving a talk, titled: Probing the cellular correlates of cognitive maps through human single-neuron recordings.

Doeller Lab@doellerlab.bsky.social · 6mo ago

🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!

🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!

How do we achieve few-shot generalization? New work led by @fabianrenz.bsky.social dives into the role of replay in learning and using structure to generalize reward. Dream team effort with Shany Grossman @nathanieldaw.bsky.social Peter Dayan & @doellerlab.bsky.social www.biorxiv.org/content/10.6...

Our new paper, now published in Cell Reports, asks how the brain adaptively shapes its representations according to the statistical structure of the environment to overcome the limits of working memory capacity. www.cell.com/cell-reports...

Efficient coding in working memory is adapted to the structure of the environment

Huang et al. show that the brain optimizes working memory by compressing information when environmental regularities exist. MEG reveals distinct neural systems for abstract structure and item details,...

cell.com

New preprint: Inference over hidden contexts shapes the geometry of conceptual knowledge for flexible behaviour. In this pre-reg study, our core claim was that we don’t just learn stimulus-reward. We infer hidden context and that inference re-wires attention and neural state space on the fly. 1/8

Amid the rise of billion-parameter models, I argue that toy models, with just a few neurons, remain essential—and may be all neuroscience needs, writes @marcusghosh.bsky.social. #neuroskyence www.thetransmitter.org/theoretical-...

Not playing around: Why neuroscience needs toy models

Amid the rise of billion-parameter models, I argue that toy models, with just a few neurons, remain essential—and may be all neuroscience needs.

thetransmitter.org

We’re very happy to share that our work on 3D spatial memory was published in PNAS just before the end of the year! 🎉 Link: www.pnas.org/doi/10.1073/... (1/8)

Congratulations @maxhinrichs.bsky.social on winning the Best Presentation Award last week at the MPUTC Symposium: Frontiers in Neuroscience & Technology - Emerging Minds.

New preprint! Have you ever wondered, what are these fuzzy simplicial sets, the theoretical framework behind e.g. UMAP? Here we show that you may simply see them as marginal distributions over simplicial sets. This provides a generative model for UMAP. (1/2) arxiv.org/abs/2512.03899

Probabilistic Foundations of Fuzzy Simplicial Sets for Nonlinear Dimensionality Reduction

Fuzzy simplicial sets have become an object of interest in dimensionality reduction and manifold learning, most prominently through their role in UMAP. However, their definition through tools from alg...

arxiv.org

Interesting findings with important applications

Nicholas Menghi@nichome.bsky.social · 8mo ago

Our new paper, now published in @natcomms.nature.com , asks a simple question: when two tasks share a common structure, does the brain learn them more efficiently? Surprisingly, this was not the case. Thread below (1/7) rdcu.be/eSwvU

Work co-first authored with @vigano.bsky.social, together with @bottinilab.bsky.social and @doellerlab.bsky.social Preprint: doi.org/10.1101/2025...

✨My first first-author paper is out✨ Entorhinal grid-like codes for visual space during memory formation in @natcomms.nature.com ➡️ rdcu.be/eLRm2 Big thanks to everyone ‪@isabellacwagner.bsky.social‬, @tobiasstaudigl.bsky.social, @olejensen.bsky.social, @doellerlab.bsky.social, @clauslamm.bsky.social

Entorhinal grid-like codes for visual space during memory formation

Nature Communications - Eye movements during scene viewing are tied to grid-like codes in the entorhinal cortex. Grid signals are specific to later remembered scenes, covary with activity in...

rdcu.be

⏳ Deadline approaching! Apply by 13 Oct for the Postdoc in Cognitive Neuroscience at MPI Leipzig.

Doeller Lab@doellerlab.bsky.social · 11mo ago

Join us at the Max Planck Institute in Leipzig as a Postdoc to explore cognitive maps in the human brain: learning, memory & the formation of structural representations. Excellent infrastructure with a leading scientific network. Apply by 13 October: postdocprogram.mpg.de/node/21187

New preprint from the lab and great work by Fei Wang. We show how subiculum trace vector cells can be modeled consistent with known effects in CA1. Traces are driven by a mismatch learning rule to keep associative memories in line with experience. www.biorxiv.org/content/10.1...

Dynamic updating of cognitive maps via traces of experience in the subiculum

In the classical view of hippocampal function, the subiculum is assigned the role as the output layer. In spatial paradigms, some subiculum neurons manifest as so-called boundary vector cells (BVCs), ...

biorxiv.org

Join us at the Max Planck Institute in Leipzig as a Postdoc to explore cognitive maps in the human brain: learning, memory & the formation of structural representations. Excellent infrastructure with a leading scientific network. Apply by 13 October: postdocprogram.mpg.de/node/21187