New preprint led by awesome undergrad Abby Bonno! By probing temporal memory for individual items in a sequence, we uncover a 'representational space' of memories that reflects the structure of encoded experiences and provides insight into how different kinds of structure shape memory. osf.io/t5kyx

We're happy to release NeuralSet: a simple, fast, scalable package for Neuro-AI

Supports:
🧠 fMRI, EEG, MEG, iEEG, spikes… preprocessing
💬 text 🔊 audio ▶️ video 🏞️ image… embeddings

📦 pip install neuralset
🔍 facebookresearch.github.io/neuroai/neur...
📄 kingjr.github.io/files/neural...

🧵 Details👇

Medial temporal lobe encodes cognitive maps of real-world social networks | PNAS Humans routinely solve social problems by navigating densely interconnected networks—gossiping strategically, brokering across cliques, and coordin...

Now out in PNAS with @jaeyoungson.bsky.social, Alice Xia, @apaxon.bsky.social & @orielf.bsky.social. Medial temporal lobe encodes predictive representations of people's real-world social networks which afford them key advantages in social navigation. www.pnas.org/doi/10.1073/... 🧵

Constituent-constrained word prediction during language comprehension - Nature Neuroscience Zou et al. reveal a key difference between human brains and large language models (LLMs). While LLMs are optimized to predict the next word, the human brain modulates prediction efficiency by strategi...

New paper that merits a read (Im totally unbiased...not). Simple, straightforward, impactful message. Prediction a la LLM is nice. Constituent-constrained prediction is nicer. @jiajiezou.bsky.social and Nai Ding show brain, behavioral, MEG, ECoG data.
www.nature.com/articles/s41... #neuroskyence

New preprint! 🧠
How do RNNs learn abstract rules from sequences, independent of specific stimuli?

By Vezha Boboeva, with Alberto Pezzotta & George Dimitriadis

"From sequences to schemas: low-rank recurrent dynamics underlie abstract relational representations"
www.biorxiv.org/content/10.6...

Spatial and semantic memory reorganize a hippocampal long-axis gradient | PNAS The hippocampus supports episodic memory by binding spatial and semantic information, yet how this information is simultaneously organized along it...

My first paper with @jkragel.bsky.social and Joel Voss came out yesterday in Proceedings of the National Academy of Sciences! It’s real! :D

www.pnas.org/doi/10.1073/...

🔥 We're very pleased to release our latest study 🧠: "Temporal structure of the language hierarchy within small cortical patches"
Paper → arxiv.org/abs/2604.03021
🧵 Summary thread below: 1/7

Happy to share our new preprint:

Uncovering the representational geometry of durations

Is time represented along a single mental timeline? We combine behaviour + EEG to show that duration is organised in a richer, multidimensional space.

w/ @lnalborczyk.bsky.social & @virginievanw.bsky.social

Knowledge Mapper An interactive tool that maps out everything you know. Answer questions and watch your personalized knowledge map take shape.

Curious what a representation of "everything" you know might look like? Wonder how you might fill it in?

Check out our demo and paper (led by @paxt0n4.bsky.social and now out in @natcomms.nature.com ), or read on to learn more!

Demo: context-lab.com/mapper/
Paper: www.doi.org/10.1038/s414...

Very psyched about this work!

#BIDS has been extended to #EyeTracking data!

There is now a standard for organizing and sharing eye tracking, covering gaze position, pupil size, meta data, messages, and more. Great news for #OpenScience! 🎉

Martin Szinte et al: www.biorxiv.org/content/10.6...

🔔PREPRINT: Sleep ripples drive single-neuron reactivation for human memory consolidation
1/9: How does sleep support human memory consolidation? To test this, we recorded hundreds of neurons in the human medial temporal lobe (MTL) across learning, wakefulness, and sleep.
doi.org/10.64898/202...

Repeated Viewing of a Film Clip Changes Event Timescales in The Brain Many everyday experiences share a recurring structure: routines, familiar routes, rewatched films, and replayed songs. How do repeated encounters with such structure alter the brain’s representations ...

How do the brain’s event representations change as we gain familiarity with an experience?

Brain regions’ representations can become coarser or finer as events become familiar. Slow-timescale structure predicts memory.

Excited to share this work w/ Narjes Al-Zahli & @chrisbaldassano.bsky.social!

Attention fluctuates over time and across contexts—how is this reflected in the brain?🧠 Fitting a dynamical systems model to fMRI data, we show that the geometry of neural dynamics along the attractor landscape reflects changes in attention. Out in @natcomms.nature.com
www.nature.com/articles/s41...

Clarifying the conceptual dimensions of representation in neuroscience - Nature Reviews Neuroscience Appeals to representation are widespread, despite neuroscientists’ uncertainty about what kind of findings count as evidence for such claims. In this Perspective, Pohl and colleagues develop a unified...

Clarifying the conceptual dimensions of representation in neuroscience — a Perspective by Stephan Pohl, Edgar Y. Walker, David L. Barack, Jennifer Lee, Rachel N. Denison, Ned Block, Florent Meyniel & Wei Ji Ma

www.nature.com/articles/s41...

Remembering times ahead: The effect of linguistic framing on representational momentum in state-change events When people remember scenes, they can draw from different sources to reconstruct their memory, such as what they saw, and linguistic descriptions of w…

New paper in Memory and Language in collaboration with the Language Comprehension Lab (lcl.ceu.edu)

"Remembering times ahead: The effect of linguistic framing on representational momentum in state-change events"

www.sciencedirect.com/science/arti...

(I'm 3rd author, but the only one on bsky)
1/5

Very happy that this paper from our lab is now out in @pnas.org! What happens when the *same* person experiences the *same* information with a *different* interpretation? Nearly the whole 🧠—well, at least nearly all association cortex—changes how it represents that information! tinyurl.com/p8chj2j7

We only experience time moving forward. But memory can both predict what comes next and reconstruct what must have happened before.

In a new @biorxivpreprint.bsky.social preprint, we show how hippocampal development enables this flexible representation of time 🧵

My first-author review ‘Determinants of individual navigation ability’ is out in Nature Reviews Psychology, co-authored with the inspiring @hugospiers.bsky.social!!!! 🎉🧠

➡️ rdcu.be/e7KxG

#Neuroscience #Navigation @nature.com @natrevpsychol.nature.com @sfn.org @fens.org @ucl.ac.uk

We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif...
Now in its new dress @elife.bsky.social (convincing & valuable in round 1).
If anyone wants to pick up the method, happy to share & explain!

If you are at #CNS2026 and are interested in hierarchical structures in event segmentation and "neural state segmentation," come and chat with me at poster A111 this afternoon from 3-5pm :)

Poster Session A #111: "Neural State Segmentation in Naturalistic Goal-directed Activities" 🧠🎞️

Excited to announce my first postdoc project at @UChicago with @WilmaBainbridge is now published in PNAS! Using computer vision and gen AI, we engineered memorable and forgettable symbols, showing memory can be optimized with data-driven visual design.

www.pnas.org/doi/full/10....

Every time you experience something new, your brain faces a decision: Should it update an existing memory or create a new one?

In our new paper in @sfnjournals.bsky.social #JNeurosci, we isolate that exact decision, moment-by-moment during learning 🧵

the human hippocampus receives convergent input from multiple sensory systems, yet we lack a basic understanding of how this structure integrates across senses.

we tackle this problem in our new preprint!

paper: doi.org/10.64898/202...

w/ Aryan Agarwal, @yannanzhu.bsky.social, & Nick Turk-Browne

1/ 🚨 New preprint

Key Moments Scaffold the Semantic Structure of Narratives

Using spoken recall and annotations from three naturalistic datasets with topic modeling, we ask: which parts of a narrative contribute most to its semantic structure and subsequently memory?

Preprint: osf.io/dcfvw

🚨 Spoiler Alert: Using a narrative reading paradigm, we found that semantic knowledge and hierarchical event structure can scaffold temporal order memory, sometimes predictably overriding the disruptive effects of event boundaries!

Excited to share our paper (with @jzacks.bsky.social), now out in JEP:LMC!

Event boundaries sometimes disrupt temporal order memory in list-based paradigms—but what happens in narratives with more complex structures that better resemble real life?

✨ Link: psycnet.apa.org/record/2027-...

The neural basis of imagination: An evolutionary perspective The study of imagination has progressed due to its operationalization through a variety of behavioural tasks, initially designed for human participant…

Hot take: the hippocampus isn't actually "evolutionarily ancient" and its not helpful to think of it as such.

The full argument for this take is right here (but you need to scroll down to sections 5-6):
www.sciencedirect.com/science/arti...

Episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz Nature Human Behaviour - Biba et al. show that episodic memory encoding fluctuates at a theta rhythm of 3–10 Hz.

I am excited to share my first paper, showing that episodic memory formation is theta rhythmic, is now published in Nature Human Behavior! Check it out here: rdcu.be/e6pzS. Thanks to my PI, Katherine Duncan, and to my collaborators for their support on this journey! Stay tuned for iEEG follow up 🧠

How do we balance external attention to the outside world and internal attention to our thoughts & memories?

We review evidence that external and internal attention can compete, unfold concurrently, or cooperate!

Loved working on this with @samversc.bsky.social & @tobiasegner.bsky.social!