iiinova — where your digital self keeps evolving

Reposted by Veronica Chelu

Edvard I Moser @edvardmoser.bsky.social · 11/03/2026

Is spatial navigation innate 🧠? Using #NeuroPixels we show that the #torus 🍩 underlying the #GridCell map exists already on day 10 in rats — before pups open eyes and ears and before they start upright walking. 🧵1:4 👇 www.biorxiv.org/content/10.6...

biorxiv.org

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Thomas Akam @thomasakam.bsky.social · 15/06/2026

Why does dopamine ramp up during approach to predictable rewards? In this preprint with Luke Priestley, we explore the idea that dopamine ramps occur when reward predictions inferred using a world-model are used to train striatal cached values.

biorxiv.org

Dopamine ramps as a normative consequence of dual-process control

Midbrain dopamine neurons are thought to implement a temporal difference (TD) reward prediction error (RPE) that updates cached values stored in striatum. This has been challenged by evidence that dop...

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Blake Richards @tyrellturing.bsky.social · 03/06/2026

New perspective piece with @mandanas.bsky.social: We argue, based on LLMs and old connectionist theories, that schemas shouldn't be viewed as distinct from semantic or episodic memories. They're just one end of a detailed-to-abstract memory spectrum: www.cell.com/neuron/fullt... #NeuroAI 🧠📈 🧪

cell.com

The schema spectrum: Emergent structures and levels of abstraction in AI and the brain

Motivated by generative AI, Samiei et al. argue against classical models that treat schemas as distinct memory structures. Instead, they propose that schemas are merely a conceptual tool describing ho...

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allen institute @alleninstitute.org · 02/06/2026

1 in 3 people are affected by neurological conditions. The time is now for a different approach. With partners like the Bezos family, @awscloud.bsky.social, & EverythingALS, we're launching the #BrainHealth accelerator to advance science & fast-track therapies. 🔗: bit.ly/4vhlvOW

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The Transmitter @thetransmitter.bsky.social · 02/06/2026

The @alleninstitute.org, a scientific research organization that has been dedicated to basic, discovery science for several decades, is launching a new project focused on human brain health. #neuroskyence By @callimcflurry.bsky.social www.thetransmitter.org/treatments/a...

thetransmitter.org

Allen Institute sets sights on treatments for brain diseases

The Brain Health Accelerator program aims to harness single-cell transcriptomics and genetic tools to develop treatments for five brain diseases.

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Veronica Chelu @veronicachelu.bsky.social · 21/05/2026

Excited to present my research poster today @canacn.bsky.social "Psilocybin Modulates Reward-Driven Learning" Using probabilistic reversal learning + computational modeling, with @swubat.bsky.social and @rcbagot.bsky.social we find effects that depend on uncertainty and prior experience

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Reposted by Veronica Chelu

Canadian Association for Neuroscience @canacn.bsky.social · 17/05/2026

Blake Richards now : Why Artificial Intelligence needs literal synapses. - how modern AI and neuroscience research converge today

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Canadian Association for Neuroscience @canacn.bsky.social · 17/05/2026

Mihaela Iordanova, current memory researcher at Concordia University in Montreal, presents her work on aversive memories and the role of the hippocampus brain region

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Eddy Rhodes @eddycurrents.bsky.social · 28/10/2025

My co-authors have yet to move to Bluesky, so I'm pleased to announce our latest work has just been published in @nature.com Neuroscience. Amazing work led by Junheng Li, revealing that falling asleep follows a predictable bifurcation pattern #neuroskyence #sleep www.nature.com/articles/s41...

nature.com

Falling asleep follows a predictable bifurcation dynamic - Nature Neuroscience

Li et al. propose a conceptual framework to study the phenomenon of falling asleep based on electroencephalogram data. They show that a tipping point marks the brain’s nonlinear wake-to-sleep transiti...

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Veronica Chelu @veronicachelu.bsky.social · 18/09/2025

Tomorrow, Sept 19 | 3:30 PM, at #CCNP2025 (ccnp.ca) in Montreal, I’ll be co-chairing the symposium “Psychedelics & Psychiatry” 🍄🧠 with @swubat.bsky.social. We’ll explore how psychedelics reshape brain circuits & behavior, bridging preclinical & clinical perspectives.

ccnp.ca

Canadian College of Neuropsychopharmacology

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Veronica Chelu @veronicachelu.bsky.social · 18/09/2025

🧵Recently wrapped up two incredible weeks of intense team 🧠 science on San Juan Island 🌲🌊 @ the Dynamic Brain Workshop by @alleninstitute.org Easily the best learning experience I’ve ever had—huge thanks to the organizers, and deep gratitude for the community, ideas, & teamwork 🙏

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Jorge Mejias @jorgefmejias.bsky.social · 08/08/2025

If you are planning to attend #CCN2025 in Amsterdam next week and are interested in recurrent network models of decision making, please join our Satellite Workshop on Monday at 3pm. We'll have @summerfieldlab.bsky.social , @veronicachelu.bsky.social and many more! sites.google.com/view/rnnsmak...

sites.google.com

RNNs making decisions

The goal of this CCN workshop is to host a scientific discussion on the study of decision-making using recurrent neural networks. The selected speakers will cover all aspects of decision-making, from ...

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Reposted by Veronica Chelu

Blake Richards @tyrellturing.bsky.social · 30/07/2025

Seriously, though, the actual principle needs to be: only request letters of reference for shortlisted candidates. The amount of unnecessary work created by forcing every single applicant for everything in academia to get 2-3 letters of reference is mind boggling. What a waste of everyone's time...

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Veronica Chelu @veronicachelu.bsky.social · 24/07/2025

Had a fantastic time at the Neurobiology of Psychedelics GRC. Only a week yet feels like it could have been months. New community, new lab, novel and diverse ideas and perspectives, unpublished brand new research, a lot of growth. Easily one of my favourites #GRCPsychedelics

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Argel Aguilar Valles @argelaguilarvalles.bsky.social · 16/07/2025

I had a great time at #GCRpsychedelics, discussing our data on the non-hallucinogenic derivative of LSD, alongside a stellar panel of researchers! Very grateful to @alexkwan.bsky.social and @vladvysotsky.bsky.social for inviting me and putting together a very exciting program!

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Alaina Jaster, PhD @jasteralaina.bsky.social · 18/07/2025

Somehow we got almost all the students and postdocs in one photo!! Until next time #GRCPsychedelics 🫡

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christine liu / two photon art @christineliu.art · 18/07/2025

Had a lovely time at #GRCpsychedelics Only took pics of bunnies, sunsets, and @cllantz.bsky.social Already looking forward to 2027!

Crystal rocking the mic in front of her slides

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Devin Effinger, Ph.D @deffinger.bsky.social · 18/07/2025

The inaugural #GRCPsychedelics was a success! I am honored to have been one of a few chosen to receive a travel award and be able to share the stage with the leaders in the field. 🙏 to the organizers! @alexkwan.bsky.social @vyazovskiy.bsky.social @melissaherman.bsky.social @viditavaidya.bsky.social

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Melissa Herman @melissaherman.bsky.social · 18/07/2025

So happy the first #GRCPsychedelics was such a success. It was great to see everyone and share all the amazing science and community. Thank you to all the speakers and congratulations to the travel awardees!!

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Leah Mayo @mayoonthebrain.bsky.social · 19/07/2025

Had a blast at the first ever #GRCPsychedelics - thanks so much to Chairs @alexkwan.bsky.social @vyazovskiy.bsky.social & Vice Chairs @melissaherman.bsky.social @viditavaidya.bsky.social for bringing our community together 🫶 Per usual, I took no pics - but luckily Missy had it covered for me 😂

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Veronica Chelu @veronicachelu.bsky.social · 18/07/2025

Fun unexpected dinner experience at the end of #GRCPsychedelics 🦞

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Veronica Chelu @veronicachelu.bsky.social · 15/07/2025

Excited to attend Neurobiology of Psychedelics GRC this week! Looking forward to deep dives into the mechanism of action of psychedelics and how they modulate neuroplasticity, cognitive flexibility, and adaptive decision-making—across behavior and neural dynamics. 🧠🍄 #GRCPsychedelics

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Veronica Chelu @veronicachelu.bsky.social · 13/07/2025

Just got back from Tokyo, where I learned many fascinating things about synaptic plasticity, dynamics of decision-making, the role of astrocytes in neural computation, just to name a few @ RIKEN Center for Brain Science during the summer program on Neural Circuits: Coding, Computation & Cognition 🧠

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Veronica Chelu @veronicachelu.bsky.social · 13/07/2025

Had a lot fun last week @ IRCN, @ University of Tokyo during the Neuro-inspired Computation Course 2025 🧠🤖✨

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Veronica Chelu @veronicachelu.bsky.social · 26/06/2025

Back from @psychedelicscience.bsky.social by @mapsorg.bsky.social in Denver, Colorado—energized by the convergence of neuroscience, psychiatry, psychopharmacology, and data-driven approaches to psychedelic research. Grateful to be part of this evolving conversation. #PS2025 #MAPS 🧠✨🌀🍄

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Reposted by Veronica Chelu

Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 13/06/2025

NEW: Veronica Chelu ( @veronicachelu.bsky.social‬ ) from @mcgilluniversity.bsky.social‬ shows how excitatory-inhibitory dynamics in recurrent neural networks can affect decision making and reinforcement learning. Watch the video: youtu.be/NnKmVObJJUQ #NeuroAI2025 #ML #neuroscience #NeuroAI

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Veronica Chelu @veronicachelu.bsky.social · 11/06/2025

🧵Grateful for the opportunity to present @harvard.edu's Frontiers in NeuroAI Symposium @kempnerinstitute.bsky.social on how decision-selective E/I dynamics shape adaptive learning & decision-making 🎥 Talk youtu.be/NnKmVObJJUQ 📄 Abstract tinyurl.com/yxvtn39v 🖼️ Poster tinyurl.com/mu3r24vx

youtu.be

Excitatory-Inhibitory Dynamics in Adaptive Decision-Making with Veronica Chelu

YouTube video by Kempner Institute at Harvard University

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Veronica Chelu @veronicachelu.bsky.social · 09/06/2025

Just landed in Dublin 🇮🇪 for @rldmdublin2025.bsky.social ! Looking forward to presenting my research on “Excitatory/Inhibitory Dynamics in Adaptive Decision-Making” and chatting about all things neuroscience, RL, and decision-making. Hope to see you around! #RLDM2025

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Avery HW Ryoo @averyryoo.bsky.social · 06/06/2025

New preprint! 🧠🤖 How do we build neural decoders that are: ⚡️ fast enough for real-time use 🎯 accurate across diverse tasks 🌍 generalizable to new sessions, subjects, and even species? We present POSSM, a hybrid SSM architecture that optimizes for all three of these axes! 🧵1/7

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Kempner Institute at Harvard University @kempnerinstitute.bsky.social · 06/06/2025

Veronica Chelu from @mcgilluniversity.bsky.social‬ and @mila-quebec.bsky.social‬ shows how excitatory-inhibitory dynamics in recurrent neural networks can affect decision making and reinforcement learning. @veronicachelu.bsky.social‬ #NeuroAI2025 #ML #neuroscience

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Veronica Chelu @veronicachelu.bsky.social · 05/06/2025

Excited for the Frontiers in NeuroAI Symposium tomorrow @kempnerinstitute.bsky.social, where I'll be presenting some recent work on Excitatory-Inhibitory Dynamics in Adaptive Decision-Making 🧠🤖 #NeuroAI2025

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Paul Masset @paulmasset.bsky.social · 04/06/2025

Our work with Pablo Tano, @hyunggoo-kim.bsky.social Athar Malik, Alexandre Pouget and @naoshigeuchida.bsky.social exploring how dopamine neurons could enable multi-timescale reinforcement learning in the brain is out in @nature.com www.nature.com/articles/s41...

nature.com

Multi-timescale reinforcement learning in the brain - Nature

Individual dopaminergic neurons encode future rewards over distinct temporal horizons.

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Blake Richards @tyrellturing.bsky.social · 17/04/2025

Was just pointed to this important preprint from @minsanally.bsky.social : www.researchsquare.com/article/rs-4... tl;dr: classically "non-responsive" cells are preferentially recruited by top-down inputs and are critical for learning. So, my neuro-friends: Don't ignore untuned cells!!!! 🧠📈 🧪

researchsquare.com

Dynamic gating of perceptual flexibility by non-classically responsive cortical neurons

The ability to flexibly respond to sensory cues in dynamic environments is essential to adaptive auditory-guided behaviors. Cortical spiking responses during behavior are highly diverse, ranging from ...

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Veronica Chelu @veronicachelu.bsky.social · 17/04/2025

Excited to share that I’ll be starting as a postdoc in @rcbagot.bsky.social’s lab at @mcgilluniversity.bsky.social, studying the neural mechanisms of psychedelics ✨🐁🌀 Grateful for this new adventure into the unknown.

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allen institute @alleninstitute.org · 09/04/2025

How does the brain work? Scientists are closer to the answer with the largest wiring diagram and functional map of a mammalian brain to date. 🧵 🧠📈

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Blake Richards @tyrellturing.bsky.social · 06/04/2025

I just sent a message to my MP, encouraging them to support #neuroscience research in the 2025 federal election during and after the election. I encourage you to do the same! Visit www.vote4brainhealth.ca for tools that make it easy. See also @cbrs-scrc.bsky.social 🧠📈 #canpoli

vote4brainhealth.ca

Vote 4 Brain Health

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Science Magazine @science.org · 04/04/2025

A special issue of Science explores the complex and close associations rats share with humans—from their ubiquity in the human environment to their crucial role as biomedical models. 🐀 Learn more on #WorldRatDay: scim.ag/3E7Xo04

This photograph shows a female standard fancy rat—a domesticated variant for the pet trade. That rats make good pets is not surprising when considering the long history of their close associations with humans. Although brown and black "wild" rats do spread some infectious diseases, we have recently learned about more-positive attributes, including quite how adept, adaptable, and even fun-loving they are.

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Alex Kwan @alexkwan.bsky.social · 02/04/2025

Our latest study identifies a specific cell type and receptor essential for psilocybin’s long-lasting neural and behavioral effects 🍄🔬🧠🧪 Led by Ling-Xiao Shao and @ItsClaraLiao Funded by @NIH @NIMHgov 📄 Read in @nature.com - www.nature.com/articles/s41... 1/12

nature.com

Psilocybin’s lasting action requires pyramidal cell types and 5-HT2A receptors - Nature

A pyramidal cell type and the 5-HT2A receptor in the medial frontal cortex have essential roles in psilocybin’s long-term drug action.

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Avery HW Ryoo @averyryoo.bsky.social · 24/03/2025

Just a couple days until Cosyne - stop by [3-083] this Saturday and say hi! @nandahkrishna.bsky.social

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Shahab Bakhtiari @shahabbakht.bsky.social · 27/03/2025

We'll be presenting two projects at #Cosyne2025, representing two main research directions in our lab: 🧠🤖 🧠📈 1/3

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Veronica Chelu @veronicachelu.bsky.social · 27/03/2025

My first time @cosynemeeting.bsky.social this week and I couldn't be more excited Tomorrow, I'll be presenting "Mood as an Extrapolation Engine for Decision-Making", a cognitive science perspective on "Functional Acceleration for Policy Mirror Descent" (arxiv.org/abs/2407.16602) Come chat!

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Veronica Chelu @veronicachelu.bsky.social · 22/03/2025

First day of spring marked new personal beginnings 🌱 PhD was the best of times...a wondrous trip 🥹, but I'm super excited to start a new chapter 😬

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