New paper alert! 🚨 We found that the brain's compass is remarkably stable at two scales 1️⃣ the system maintains its internal organization for weeks 2️⃣ It "remembers" its orientation for weeks, even after a single visit This may be key to how the brain aligns its other maps. Paper: rdcu.be/e3waP

At #NeurIPS in San Diego and interested in #NeuroAI? Today in the🕐11am-2pm session, I will present our work on brain-inspired continual learning via TMCL (📍Poster 2206), with Emre Neftci and @dlg-ai.bsky.social. Say hi or DM me if you want to chat about continual, local or modular learning!

Viet Anh Khoa Tran@ktran.de · last yr.

New #NeuroAI preprint on #ContinualLearning! Continual learning methods struggle in mostly unsupervised environments with sparse labels (e.g. parents telling their child the object is an 'apple'). We propose that in the cortex, predictive coding of high-level top-down modulations solves this! (1/6)

The perfect wrap up for an awesome time at #SfN25. Thanks to everyone for all the great impressions and discussions. It was wonderful meeting such cool and nice people! @apeyrache.bsky.social @adrian-du.bsky.social @anujvadher.bsky.social & Paul Dudchenko

Adrian Duszkiewicz@adrian-du.bsky.social · 9mo ago

Managed to squeeze in one more head-direction themed get-together in the sun to wrap up #SfN25 🧭☀️🧠 @apeyrache.bsky.social @svenkrausse.bsky.social @anujvadher.bsky.social & Paul Dudchenko

👋 At #SfN25? Interested in how head-direction cells anchor to visual cues? 🧠 Come visit me Tuesday Morning (8am - 12pm) 📍 Poster RR15 showing work w/ @adrian-du.bsky.social on parallax in PoSub and what we learn from it for visual cue integration. Come say hi or DM for a coffee chat! ☕️ #Neurosky

Great to be back at SfN in San Diego, even though the weather gods have decided to go full 'Scottish summer' this year 🌧️ If you're here and you're into spatial navigation do check out the posters below 👇 [1/n]

Really excited to share this Opinion piece we've been working on with fellow head-direction cell geeks @apeyrache.bsky.social @desdemonafricker.bsky.social and (bsky-less?) Andrea Burgalossi! While head-direction cells pop up in many cortical regions, we think that one of them is quite unique (1/8)

The postsubiculum as a head-direction cortex

The organisation of thalamocortical networks follows a conserved structure. Traditionally, these are divided into primary sensory systems that receive…

sciencedirect.com

I love open science! Not only is this absolutely brilliant work on how time and events are encoded in LEC, it is also a crazy rich dataset and it's just available to everyone! Thank you so much for sharing the recordings, I can't wait to play around with it!

Edvard I Moser@edvardmoser.bsky.social · last yr.

Your brain doesn’t just passively track time ⏳ - it structures it. In @Science.org we show that activity in 🧠 memory circuits (LEC) drifts constantly, but makes sharp jumps at key moments, segmenting life into meaningful events. (1/2) 👉 www.science.org/doi/10.1126/...

Very proud to have presented our work on modeling cognitive maps and episodic memory at the GEM conference today! @for2812.bsky.social Check out our preprint to learn more about how you can bring together semantic and spatial information with our grid-cell-VSA model arxiv.org/abs/2503.08608

Very excited to get the opportunity to give a talk at GEM2025 on how we combine spatial and semantic information to form episodic memories. See you in beautiful Bochum :)

FOR 2812@for2812.bsky.social · last yr.

Registration for GEM 2025 closes on 30.04.25. Bochum has a reputation for being grey and dull (due to the coal and steel industry), but in fact it is far from it. Currently the cherry blossoms are in bloom and by June greenery will abound. Photo credits: @sencheng.bsky.social

Very proud to announce the first paper for my PhD: Grid Cell-Inspired Vector Algebra: Bridging the Brain's Navigation System with Symbolic Reasoning. Unifying spatial and symbolic computation! Happy to be in Heidelberg next week, presenting this at NICE. arxiv.org/abs/2503.08608 #NICE2025

A Grid Cell-Inspired Structured Vector Algebra for Cognitive Maps

The entorhinal-hippocampal formation is the mammalian brain's navigation system, encoding both physical and abstract spaces via grid cells. This system is well-studied in neuroscience, and its efficie...

arxiv.org

I was curious about the wonky AI overview results being delivered by Google search, so I looked at this a bit further. "What is heavier: an elephant or an elephant with an ant on its back?"

Re-reading classic papers from the 1940s, I have to say... introductions were different back then

Some of my thoughts on OpenAI's o3 and the ARC-AGI benchmark aiguide.substack.com/p/did-openai...

Did OpenAI Just Solve Abstract Reasoning?

OpenAI’s o3 model aces the "Abstraction and Reasoning Corpus" — but what does it mean?

aiguide.substack.com

OK If we are moving to Bluesky I am rescuing my favourite ever twitter thread (Jan 2019). The renamed: Bluesky-sized history of neuroscience (biased by my interests)