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T. Anderson Keller

@andykeller.bsky.social
383 followers 372 following 17 posts

Postdoctoral Fellow at Harvard Kempner Institute. Trying to bring natural structure to artificial neural representations. Prev: PhD at UvA. Intern @ Apple MLR, Work @ Intel Nervana

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Reposted by T. Anderson Keller
Erik Bekkers @erikjbekkers.bsky.social · 15/04/2026
We're looking for a new colleague at @amlab.bsky.social: Assistant Professor in AI for Science 🔬🤖 World-class ML research, Amsterdam's thriving AI ecosystem (ELLIS, startups, big tech), and some of the best academic labor conditions in Europe ❤️ Deadline: May 30 👉 werkenbij.uva.nl/en/vacancies...
werkenbij.uva.nl
Vacancy — Assistant Professor in AI for Science (AI4Science)
<p><span>Are you passionate about advancing Machine Learning by integrating insights from the natural sciences? Are you eager to bridge the 3rd (<em><span>computational</span></em>) and 4th (<em><span...
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Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 12/03/2026
🧠🤖 Are you at #COSYNE2026? Check out the #KempnerInstitute's presentations! 👇 #neuroscience #NeuroAI
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Edvard I Moser @edvardmoser.bsky.social · 28/01/2026
The hippocampal map has its own attentional control signal! Our new study reveals that theta #sweeps can be instantly biased towards behaviourally relevant locations. See 📹 in post 4/6 and preprint here 👉 www.biorxiv.org/content/10.6... 🧵(1/6)
biorxiv.org
Attention-like regulation of theta sweeps in the brain's spatial navigation circuit
Spatial attention supports navigation by prioritizing information from selected locations. A candidate neural mechanism is provided by theta-paced sweeps in grid- and place-cell population activity, which sample nearby space in a left-right-alternating pattern coordinated by parasubicular direction signals. During exploration, this alternation promotes uniform spatial coverage, but whether sweeps can be flexibly tuned to locations of particular interest remains unclear. Using large-scale Neuropixels recordings in freely-behaving rats, we show that sweeps and direction signals are rapidly and dynamically modulated: they track moving targets during pursuit, precede orienting responses during immobility, and reverse during backward locomotion — without prior spatial learning. Similar modulation occurs during REM sleep. Canonical head-direction signals remain head-aligned. These findings identify sweeps as a flexible, attention-like mechanism for selectively sampling allocentric cognitive maps. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, Synergy Grant 951319 (EIM) The Research Council of Norway, Centre of Neural Computation 223262 (EIM, MBM), Centre for Algorithms in the Cortex 332640 (EIM, MBM), National Infrastructure grant (NORBRAIN, 295721 and 350201) The Kavli Foundation, https://ror.org/00kztt736 Ministry of Science and Education, Norway (EIM, MBM) Faculty of Medicine and Health Sciences; NTNU, Norway (AZV)
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Adam J. Eisen @adamjeisen.bsky.social · 26/11/2025
How do brain areas control each other? 🧠🎛️ ✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
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Champalimaud Research @champalimaudr.bsky.social · 15/10/2025
@andykeller.bsky.social @kempnerinstitute.bsky.social presented “Flow Equivariant Cybernetics”, a blueprint for agents that learn through continuous feedback with their environment.
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Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 22/07/2025
New in the #DeeperLearningBlog: #KempnerInstitute research fellow @andykeller.bsky.social introduces the first flow equivariant neural networks, which reflect motion symmetries, greatly enhancing generalization and sequence modeling. bit.ly/451fQ48 #AI #NeuroAI
bit.ly
Flow Equivariant Recurrent Neural Networks - Kempner Institute
Sequence transformations, like visual motion, dominate the world around us, but are poorly handled by current models. We introduce the first flow equivariant models that respect these motion symmetrie...
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Kanaka Rajan @kanakarajanphd.bsky.social · 02/07/2025
(1/7) New preprint from Rajan lab! 🧠🤖 @ryanpaulbadman1.bsky.social & Riley Simmons-Edler show–through cog sci, neuro & ethology–how an AI agent with fewer ‘neurons’ than an insect can forage, find safety & dodge predators in a virtual world. Here's what we built Preprint: arxiv.org/pdf/2506.06981
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Nick Blauch @nblauch.bsky.social · 16/06/2025
What shapes the topography of high-level visual cortex? Excited to share a new pre-print addressing this question with connectivity-constrained interactive topographic networks, titled "Retinotopic scaffolding of high-level vision", w/ Marlene Behrmann & David Plaut. 🧵 ↓ 1/n
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 23/05/2025
Are you an RL PhD at Harvard who has had your funding wrecked by the government and working on topics related to multi-agent? Reach out, I am happy to try to find a way to support you.
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DrBreaky @drbreaky.bsky.social · 06/05/2025
Looking forward to presenting our work on cortico-hippocampal coupling and wave-wave interactions as a basis for some core human cognitions 5pm May 6th EST (US) 8am May 7th AEST (Sydney) Zoom link: columbiacuimc.zoom.us/j/92736430185 Thanks to WaveClub conveners Erfan Zabeh & Uma Mohan
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Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 29/03/2025
It’s another big day for the #KempnerInstitute at @CosyneMeeting! Check out our work highlighted in poster session 3 today! #COSYNE2025
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Kevin Mitchell @wiringthebrain.bsky.social · 10/03/2025
Super interesting thread!
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Mozes Jacobs @mozesjacobs.bsky.social · 10/03/2025
Traveling waves of neural activity are observed all over the brain. Can they be used to augment neural networks? I am thrilled to share our new work, "Traveling Waves Integrate Spatial Information Through Time" with @andykeller.bsky.social! 1/13
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Yohan J John @dryohanjohn.bsky.social · 10/03/2025
Really interesting RNN work. And based on some spiking simulations I've tinkered with, it seems plausible that PV, CB & CR interneurons can contribute to changing the boundary conditions and the 'elasticity' of the oscillating 'rubber sheet' of cortex (and probably hippocampus and amygdala too). 🤓
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T. Anderson Keller @andykeller.bsky.social · 10/03/2025
In the physical world, almost all information is transmitted through traveling waves -- why should it be any different in your neural network? Super excited to share recent work with the brilliant @mozesjacobs.bsky.social: "Traveling Waves Integrate Spatial Information Through Time" 1/14
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Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 10/03/2025
New research shows neurons learn to encode and transmit information to other spatially distant neurons through traveling waves. Read more in the #KempnerInstitute’s blog: bit.ly/3DrIPEq
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