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Luca Barlassina

@barlassina.bsky.social
126 followers 176 following 19 posts

Philosopher of mind/cognition. Senior Lecturer; University of Sheffield. lucabarlassina.org

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Reposted by Luca Barlassina
Maxence Pajot @maxencepajot.bsky.social · 02/09/2026
New AI models now show incredible math skill, solving problems that had stumped mathematicians for years. But what about basic geometric abilities? In our new paper in PLOS Computational Biology, we investigate this in vision models: doi.org/10.1371/jour... 1/8
doi.org
Can neural networks model the human perception of geometric shapes?
Author summary Recent neural networks have achieved remarkable success across a wide range of visual tasks, often rivaling or surpassing human performance. Yet, it remains unclear whether these system...
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Reposted by Luca Barlassina
Aidan McGlynn @aidanmcglynn.bsky.social · 17/11/2023
Simple philosophy
Simple philosophy
To The Economist
Brevity is important in exams, too. I am reminded of an old Oxford essay question: "Was Hegel a good philosopher?
Be brief." One smug student wrote, simply, "Yes". When the paper came back, the examiner had scribbled in the margin:
"This was a good, brief answer.
But a better, briefer answer would have been 'No'." Sam Williams, London
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Sander Verhaegh @sanderverhaegh.bsky.social · 02/09/2026
In the 1930s, a group of European philosophers fled fascism and reshaped American philosophy. Why did logical positivism have such an impact on US thought? And why did it play a central role in the culture wars of the 1950s and 1960s? Released today! Logical Positivism: An American History (1/3)
Cover of Logical Positivism: An American History
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British Journal for the Philosophy of Science @thebjps.bsky.social · 07/07/2026
From the new issue: Contours of Vision: Towards a Compositional Semantics of Perception – Kevin J Lande Abstract in alt text or read it here: www.journals.uchicago.edu/doi/10.1086/...  #philsci #philsky
ABSTRACT. Mental capacities for perceiving, remembering, thinking, and planning involve the processing of structured mental representations. A compositional semantics of such representations would explain how the content of any given representation is determined by the contents of its constituents and their mode of combination. While many have argued that semantic theories of mental representations would have broad value for understanding the mind, there have been few attempts to develop such theories in a systematic and empirically constrained way. This article contributes to that end by developing a semantics for a ‘fragment’ of our mental representational system: the visual system’s representations of the bounding contours of objects. At least three distinct kinds of composition are involved in such representations: ‘concatenation’, ‘feature composition’, and ‘contour composition’. I sketch the constraints on and semantics of each of these. This account has three principal payoffs. First, it models a working framework for compositionally ascribing structure and content to perceptual representations, while highlighting core kinds of evidence that bear on such ascriptions. Second, it shows how a compositional semantics of perception can be compatible with holistic, or Gestalt, phenomena, which are often taken to show that the whole percept is other than the sum of its parts. Finally, the account illuminates the format of a key type of perceptual representation, bringing out the ways in which contour representations exhibit domain-specific form of the sort that is typical of structured icons such as diagrams and maps, in contrast to typical discursive representations of logic and language.
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Bella Fascendini @bellafascendini.bsky.social · 26/06/2026
New paper! w/ @cocoscilab.bsky.social🧵Can large language models reason flexibly, or have they learned what reasoning looks like? We introduce a new paradigm to test this question—the riddle riddle—and find that humans and LLMs show opposite patterns of performance. 📜
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Tania Lombrozo @tanialombrozo.bsky.social · 24/06/2026
I wrote a book! It's called WHY WE ASK WHY, and it's about the human drive to explain, combining psychology, philosophy, and stories. It will be released on October 6, but it's currently available for pre-order from Barnes & Noble at 25% off with code PREORDER25.
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Luca Barlassina @barlassina.bsky.social · 24/03/2026
www.hangsengcognitivestudies.com/mind-the-tim...
hangsengcognitivestudies.com
Mind the time: Puzzles of temporal cognition
Mind the time: Puzzles of temporal cognition Tuesday, 14th April, 2026 John Carr Design Suite - C29; Portobello Centre; Pitt Street, S1 4ET The University of Sheffield
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Reposted by Luca Barlassina
Pascal Mamassian @mamassian.bsky.social · 12/03/2026
A new Department of Cognitive Science is being created at Bocconi University in Milan, Italy. Here is the call for a cluster hire (for around 10 faculty) in all areas of cognitive science, at both junior and senior levels: www.unibocconi.it/en/faculty-a... Deadline: May 4th, 2026
unibocconi.it
Open Rank Faculty Cluster Hire Search for the New Department of Cognitive Science at Bocconi - Bocconi University
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Michael Greshko @michaelgreshko.bsky.social · 05/02/2026
It was a pleasure to edit Claudia's story about this remarkable bonobo—and a remarkable study done with him shortly before he passed away. 🧪https://www.science.org/content/article/imagination-isn-t-just-humans-famous-ape-shows
science.org
Imagination isn’t just for humans, this famous ape shows
Kanzi, a bonobo studied for his language skills, understood make-believe objects
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Chaz Firestone @chazfirestone.bsky.social · 09/10/2025
This is a big one! A 4-year writing project over many timezones, arguing for a reimagining of the influential "core knowledge" thesis. Led by @daweibai.bsky.social, we argue that much of our innate knowledge of the world is not "conceptual" in nature, but rather wired into perceptual processing. 👇
Screenshot of a paper abstract:

“Core knowledge” refers to a set of cognitive systems that underwrite early representations of the physical and social world, appear universally across cultures, and likely result from our genetic endowment. Although this framework is canonically considered as a hypothesis about early emerging conception — how we think and reason about the world — here we present an alternative view: that many such representations are inherently perceptual in nature. This “core perception” view explains an intriguing (and otherwise mysterious) aspect of core-knowledge processes and representations: that they also operate in adults, where they display key empirical signatures of perceptual processing. We first illustrate this overlap using recent work on “core physics”, the domain of core knowledge concerned with physical objects, representing properties such as persistence through time, cohesion, solidity, and causal interactions. We review evidence that adult vision incorporates exactly these representations of core physics, while also displaying empirical signatures of genuinely perceptual mechanisms, such as rapid and automatic operation on the basis of specific sensory inputs, informational encapsulation, and interaction with other perceptual processes. We further argue that the same pattern holds for other areas of core knowledge, including geometrical, numerical, and social domains. In light of this evidence, we conclude that many infant results appealing to precocious reasoning abilities are better explained by sophisticated perceptual mechanisms shared by infants and adults. Our core-perception view elevates the status of perception in accounting for the origins of conceptual knowledge, and generates a range of ready-to-test hypotheses in developmental psychology, vision science, and more.
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tal boger @talboger.bsky.social · 19/08/2025
On the left is a rabbit. On the right is an elephant. But guess what: They’re the *same image*, rotated 90°! In @currentbiology.bsky.social, @chazfirestone.bsky.social & I show how these images—known as “visual anagrams”—can help solve a longstanding problem in cognitive science. bit.ly/45BVnCZ
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Vlad Ayzenberg @vayzenb.bsky.social · 02/07/2025
My paper with @stellalourenco.bsky.social ‬is now out in Science Advances! We found that children have robust object recognition abilities that surpass many ANNs. Models only outperformed kids when their training far exceeded what a child could experience in their lifetime doi.org/10.1126/scia...
doi.org
Fast and robust visual object recognition in young children
The visual recognition abilities of preschool children rival those of state-of-the-art artificial intelligence models.
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Katrin Vogt @katrinvogt.bsky.social · 27/09/2025
How is valence computed in the brain? Check out our new preprint about a single cell that integrates excitatory and inhibitory input across modalities according to valence and impacts behavioral decisions. An exciting collaboration across many labs. Enjoy reading! www.biorxiv.org/content/10.1...
biorxiv.org
A multisensory, bidirectional, valence encoder guides behavioral decisions
A key function of the brain is to categorize sensory cues as repulsive or attractive and respond accordingly. While we have some understanding of how sensory information is processed in the sensory pe...
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Reposted by Luca Barlassina
Society for Philosophy and Psychology @socphilpsych.bsky.social · 09/09/2025
🌟From Nicolò Cesana-Arlotti, Sofia Jáuregui, Peter Mazalik, Shaun Nichols & Justin Halberda: Logical concepts of (im)possibility guide young children's decision-making
doi.org
Logical Concepts of (Im)possibility Guide Young Children's Decision‐Making
The human capacity for rational decisions hinges on modal judgment: the discernment of what could, has to, or cannot happen. This ability was proposed to be a late outcome of human cognitive develop.....
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Science Magazine @science.org · 29/08/2025
Wild orangutans feast on fruit to prepare metabolically for famine, according to a new field-based study in #ScienceAdvances. scim.ag/3UQdXm0
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Chaz Firestone @chazfirestone.bsky.social · 22/08/2025
How much does the environment we’re raised in change how we see the world? Wonderful piece in @sciam.bsky.social by @norabradford.bsky.social, ft. an interview with @dorsaamir.bsky.social about our work on the 'cultural byproduct hypothesis'. www.scientificamerican.com/article/does...
scientificamerican.com
Why a Classic Psychology Theory about Vision Has Fallen Apart
The downfall of a long-standing theory in psychology raises a question: How much does the environment we’re raised in change how we literally see the world?
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Chris Krupenye @chriskrupenye.bsky.social · 20/08/2025
When an animals' groupmates go out of sight, do they also go out of mind? In a new paper in Proc B @royalsocietypublishing.org, Luz Carvajal and I show that a bonobo (Kanzi) can keep mental tabs on the whereabouts of multiple hidden social partners royalsocietypublishing.org/eprint/4GI7G...
royalsocietypublishing.org
Mental representation of the locations and identities of multiple hidden agents or objects by a bonobo | Proceedings of the Royal Society B: Biological Sciences
Humans are adept at navigating the social world in part because we flexibly map the locations and identities of agents around us. While field studies suggest primates can track individual conspecifics...
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Jacob T. Levy @jacobtlevy.bsky.social · 19/08/2025
The fact that the thing we're calling artificial intelligence *can't do math* and yet we're jamming it into programs that successfully *have done math* for decades, then warning people against using the AI to do math, seems like an excellent summary of where we are.
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Luca Barlassina @barlassina.bsky.social · 07/08/2025
Knowledge-first mindreading? Antilici & Mei say, "No". onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
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samuel mehr @mehr.nz · 05/08/2025
my review 'core systems of music perception' is on the cover of TICS this month (algorithmic art by @kennyvaden.bsky.social) www.cell.com/trends/cogni...
Cover of TICS with vertical beige toned sound waves
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Luca Barlassina @barlassina.bsky.social · 09/07/2025
Evidence of mood states in reptiles | Animal Cognition share.google/fi900djWYTjX...
share.google
Evidence of mood states in reptiles - Animal Cognition
There is increasing evidence that non-human animals experience ‘free-floating’ mood states, but such evidence is lacking in reptiles, hindering the debate as to their affective capacity and with subse...
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Reposted by Luca Barlassina
David Melnikoff @d-melnikoff.bsky.social · 21/06/2025
A key takeaway from 20+ years of computational RL is: model-free=automatic, model-based=deliberate. My new paper w/ @benedek.bsky.social challenges this view, suggesting that MB algos are more ubiquitous, & automatic processing more sophisticated, than currently thought: www.pnas.org/doi/10.1073/...
pnas.org
Model-based algorithms shape automatic evaluative processing | PNAS
Computational theories of reinforcement learning suggest that two families of algorithm—model-based and model-free—tightly map onto the classic dis...
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Tomer Ullman @tomerullman.bsky.social · 02/06/2025
Out now in TiCS, something i've been thinking about a lot: "Physics vs. graphics as an organizing dichotomy in cognition" (by Balaban & me) relevant for many people, related to imagination, intuitive physics, mental simulation, aphantasia, and more authors.elsevier.com/a/1lBaC4sIRv...
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eLife @elife.bsky.social · 01/06/2025
Turns out, two of pain’s most famous messengers — Substance P and CGRPα — might not be so essential after all. Mice missing both still felt pain just fine, challenging decades of assumptions about how pain signals travel. buff.ly/ypISrtx
different coloured mice on a white background
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Luca Barlassina @barlassina.bsky.social · 22/05/2025
newscientist.com
The first teeth were sensory organs on the skin of ancient fish
Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago
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Reposted by Luca Barlassina
Ian Phillips @ianbphillips.bsky.social · 20/05/2025
5 years since our first pilot, and 25,000 participants later, I'm super happy this work with Makaela Nartker, @chazfirestone.bsky.social and Howard Egeth on inattentional blindness is now out in eLife! A little 🧵 of what we found... 1/12 elifesciences.org/articles/100...
elifesciences.org
Sensitivity to visual features in inattentional blindness
As a group, inattentionally blind participants can successfully report the location, color, and shape of stimuli they deny noticing, and exhibit a systematic bias to report not noticing.
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Science Magazine @science.org · 14/05/2025
Researchers have known for decades that chimpanzees drum, but two new studies show that the animals drum to a distinct beat—which varies across their societies. Learn more: scim.ag/3YJ7R9r
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Randolph Nesse @randynesse.bsky.social · 11/05/2025
The essay by @awaisaftab.bsky.social does a fine job of describing how cliff-edge fitness functions may explain vulnerability to some diseases. For an accessible Psychology Today article on the topic, see the link below. www.researchgate.net/publication/...
researchgate.net
(PDF) The Puzzle of the Unbalanced Mind
PDF | Why do genes for mental disorders persist? This article argues it is because traits with a cliff-edged fitness function are shaped to a... | Find, read and cite all the research you need on Rese...
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Luca Barlassina @barlassina.bsky.social · 08/05/2025
Laurenz Casser on whether objective pain measurement is possible. He says, "No, it is not" #philsky #psysky #pain
theconversation.com
Objective pain score? Here’s the problem with that
The problem of pain measurement is not technological, but philosophical. Biomarkers won’t solve it.
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Andrew Curry @andrewcurry.com · 02/05/2025
Between 1637 and 1697, people who died at Milan's biggest hospital were dropped into underground vaults. Now their remains (including nearly 3 million bones & preserved brains) are helping archaeologists reconstruct the lives, diet and drug habits of people historians often overlook. @science.org
science.org
Thousands buried in 17th century Italian crypt reveal lives of working poor
Remains recovered from beneath a Milan hospital shed light on health, diet, and drug habits during the 1600s
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Adam Morris @thatadammorris.bsky.social · 30/04/2025
Are we “strangers to ourselves”? Classic theories say people have limited insight into how they decide. Our new paper at @natcomms.nature.com challenges this view. With @rcarl.bsky.social sky.social, @hedykober.bsky.social y.social, and @mjcrockett.bsky.social www.nature.com/articles/s41... 🧵
nature.com
Introspective access to value-based multi-attribute choice processes - Nature Communications
People routinely choose between multi-attribute options, such as which movie to watch. Here, the authors show people often have accurate insight into their choices, challenging the notion that people ...
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Evan Westra @evanwestra.bsky.social · 25/04/2025
Synthese is the Florida Man of philosophy journals. dailynous.com/2025/04/25/a...
dailynous.com
A Mysterious Publication - Daily Nous
An article published recently in Synthese caught the eye of a few Daily Nous readers. Remember the game, "which one of these is not like the others?" Give it try on this selection of the latest articl...
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Jonathan Phillips @jsphillips.bsky.social · 26/03/2025
In a new preprint (doi.org/10.31234/osf...) a huge range of data+methods shows that people can evaluate what others know without first evaluating what they think/believe. Representations of knowledge seem to be an independent and conceptually primitive way of representing others' minds. 🧵 below!
doi.org
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Matthias Michel @matthiasmichel.bsky.social · 21/04/2025
Very happy to announce that our paper “Sensory Horizons and the Functions of Conscious Vision” is now out as a target article in BBS!! @smfleming.bsky.social and I present a new theory of the evolution and functions of visual consciousness. Article here: doi.org/10.1017/S014.... A (long) thread 🧵
doi.org
Sensory Horizons and the Functions of Conscious Vision | Behavioral and Brain Sciences | Cambridge Core
Sensory Horizons and the Functions of Conscious Vision
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Maddy Jalbert @maddyjalbert.bsky.social · 19/04/2025
I got an email yesterday afternoon that my NSF SPRF Postdoctoral Fellowship was terminated. My grant focused on testing interventions to address online misinformation and I was 8 months into a two year appointment.
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Luca Barlassina @barlassina.bsky.social · 15/04/2025
cell.com
Origins of numbers: a shared language-of-thought for arithmetic and geometry?
Concepts of exact number are often thought to originate from counting and the successor function, or from a refinement of the approximate number system (ANS). We argue here for a third origin: a share...
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Melanie Mitchell @melaniemitchell.bsky.social · 20/03/2025
In my latest column for Science magazine, I discuss recent AI "reasoning" models -- how it works, to what extent it captures "genuine" reasoning processes, and what's needed to answer such questions. www.science.org/doi/10.1126/...
science.org
Artificial intelligence learns to reason
Julia has two sisters and one brother. How many sisters does her brother Martin have?Solving this tiny puzzle requires a bit of thinking. You might mentally picture the family of three girls and one b...
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Tobias Gerstenberg @tobigerstenberg.bsky.social · 18/03/2025
It's my honor to announce the 2025 winner of the Stanton Prize given out by the Society of Philosophy and Psychology (drum roll 🥁): Shannon Spaulding 🏆 Huge congratulations!! Make sure to see Shannon's prize lecture at the SPP conference at Cornell this June. www.socphilpsych.org/meetings.html
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Jimmy Lenman (吉明) @lenmanj.bsky.social · 17/03/2025
If anyone fancies doing my job for three years... www.jobs.ac.uk/job/DMH928/l...
jobs.ac.uk
Lecturer in Ethics at University of Sheffield
Looking for a new job opportunity in academia? Check out this job opening for a Lecturer in Ethics on jobs.ac.uk!
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Nick Byrd, Ph.D. @byrdnick.com · 16/03/2025
Until this weekend, I did not know that this is how Daniel Kahneman died. I am neither surprised nor disturbed, and I expect this to become more common. www.wsj.com/arts-cul...
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Luca Barlassina @barlassina.bsky.social · 10/03/2025
Incredible
bostonglobe.com
‘Uncharted territory.’ Harvard and MIT freeze hiring as Trump widens crackdown on universities. - The Boston Globe
“We need to prepare for a wide range of financial circumstances,” Harvard president Alan Garber and other university leaders said.
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Dr Rachael Miller (Harrison) @drrmiller.bsky.social · 27/02/2025
An honour to be a co-editor, with @dralexschnell.bsky.social, Elias Garcia-Pelegrin and Josh Plotnik, for this Special Issue in Learning & Behavior dedicated to the wonderful Prof Nicky Clayton. link.springer.com/article/10.3...
link.springer.com
A special issue in honor of the contributions of Professor Nicola S. Clayton FRS - Learning & Behavior
It has been an honor to edit this special issue of Learning & Behavior to recognize the exceptional contributions of Prof. Nicky S. Clayton FRS to the fields of comparative cognition and developmental...
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Luca Barlassina @barlassina.bsky.social · 02/03/2025
"Patrimonialism is suspicious of bureaucracies; after all, to exactly whom are they loyal? ... People with expertise, experience, and distinguished résumés are likewise suspect because they bring independent standing and authority."
theatlantic.com
One Word Describes Trump
A century ago, a German sociologist explained precisely how the president thinks about the world.
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Richard Pettigrew @wiglet1981.bsky.social · 28/02/2025
‘Knowledge is the most general factive mental state’
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Luca Barlassina @barlassina.bsky.social · 17/02/2025
Excellent interview with Michael Rescorla on Bayesian psychology, mental representations, and other cool stuff. #philsky #psysky
3-16am.co.uk
Bayesian Models - 3:16
I defend a broadly representationalist interpretation of Bayesian cognitive science, focusing especially on perception, motor control, and navigation. The basic idea is that Bayesian models posit repr...
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Susanna Schellenberg @sschellenberg.bsky.social · 12/02/2025
Congratulations to Chaz Firestone for winning the APS Janet Taylor Spence Award (and congratulations to the award winners who I don't know personally)! @chazfirestone.bsky.social
psychologicalscience.org
APS Janet Taylor Spence Award for Transformative Early Career Contributions
The APS Janet Taylor Spence Award recognizes APS members who have made transformative early career contributions to psychological science.
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Weinan Sun @sunw37.bsky.social · 12/02/2025
1/12 How do animals build an internal map? In our new paper, we tracked thousands of mouse CA1 neurons over days/weeks as they learned a VR navigation task. @nspruston.bsky.social & co-1st author @johanwinn.bsky.social Video: www.youtube.com/watch?v=yw_4... Paper: www.nature.com/articles/s41...
youtube.com
Learning produces an orthogonalized state machine in the hippocampus
YouTube video by Weinan Sun
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