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Sam Nastase

@samnastase.bsky.social
2.6K followers 839 following 89 posts

assistant professor of psychology at USC丨he/him丨semiprofessional dungeon master

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Reposted by Sam Nastase
Elliot Murphy @elliot-murphy.bsky.social · 04/09/2026
Out today - a brief commentary on this paper from @samnastase.bsky.social, @adelegoldberg.bsky.social and others. 🧵[1/8] arxiv.org/abs/2609.03160
arxiv.org
No country for old linguists: LLM-brain alignment underdetermines neural computation
Nastase et al. (2026) argue that large language models (LLMs) may illuminate language processing because both rely on distributed, context-sensitive representations shaped by statistical learning. The...
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Harrison Ritz @hritz.bsky.social · 27/08/2026
Our task-switching paper is now out at Current Biology! www.cell.com/current-biol... We find that that our brains reset to a task-neutral state between trials, providing flexibility when the upcoming task is uncertain. RNNs also learn this strategy, but only when trained to switch tasks.
schematic of how a brain might reset to a neutral state between trials
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Sam Nastase @samnastase.bsky.social · 21/08/2026
We’re recruiting a full-time lab manager to join the Shared Minds Lab at USC! This will be a great opportunity for someone who wants to get hands-on experience with research before starting a PhD program in psychology or neuroscience. More below:
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Neuron @cp-neuron.bsky.social · 14/08/2026
dlvr.it
Unifying the structures of language in a neural population code
How does language emerge from neural computations in the human brain? In stark contrast to symbolic theories of language, large language models demonstrate how the structures of language can be unified in a high-dimensional neural population code.
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Sam Nastase @samnastase.bsky.social · 18/08/2026
New perspective piece out in @cp-neuron.bsky.social with Zaid Zada, @adelegoldberg.bsky.social, and Uri Hasson! We try to articulate some of our excitement about LLMs and discuss what kinds of insights they might provide into the neural computations supporting natural language in the human brain.
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Adele Goldberg @adelegoldberg.bsky.social · 15/08/2026
there are legit concerns about LLMs, but they have important implications and offer fascinating possibilities for understanding human language By @samnastase.bsky.social www.sciencedirect.com/science/arti...
sciencedirect.com
Unifying the structures of language in a neural population code
Large language models (LLMs) have mastered human language in ways that no previous computational system has. While rule-based, symbolic systems suffic…
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Minds, Machines, and Brains (MMB) @mmb-journal.bsky.social · 02/08/2026
Hello world! 👋 We’re Minds, Machines, and Brains (MMB) 👤🤖🧠 a new open access journal from @mitpress.bsky.social exploring the principles of intelligence and cognition across natural and artificial minds. Submissions open this Fall! 🔗 direct.mit.edu/mmb
direct.mit.edu
Minds, Machines, and Brains | MIT Press
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Chris Baldassano @chrisbaldassano.bsky.social · 09/07/2026
I'm excited to present at the Neuroscience of the Everyday World Conference Nov 12-13 @ Boston University, in symposium "The Brain Meets the Model: Foundation Models as Windows into Naturalistic Cognition" w/ @samnastase.bsky.social Submit abstracts by July 31 www.cheninstitute.org/events-new/b...
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Rudebeck Lab @rudebecklab.bsky.social · 04/04/2026
Want a dataset to test ideas on neural basis of decision making or how areas interact as we make choices? Check out our data published today @rudebecklab.bsky.social. >16,000 single neurons from 22 anatomically confirmed areas in macaques performing a decision task. www.nature.com/articles/s41...
nature.com
Dataset of cortical and subcortical single neuron activity during value-based tasks in macaque monkey - Scientific Data
Scientific Data - Dataset of cortical and subcortical single neuron activity during value-based tasks in macaque monkey
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Ryan Boyd @ryanboyd.bsky.social · 21/03/2026
THE NLRB GRANTED OUR ELECTION PETITION! USC non-tenure-track faculty will FINALLY get to vote on our union in April!
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Drop Site @dropsitenews.com · 02/03/2026
🚨NEW: At least 555 Iranians killed & hundreds injured across 131 counties in Iran since U.S. & Israel began launching strikes on Feb. 28, the Iranian Red Crescent reports. ▪️ over 35 people killed Mon. morning in southern Iran’s Fars province ▪️at least 8 different hospitals have suffered serious...
🚨NEW: At least 555 Iranians killed and hundreds injured across 131 counties in Iran since U.S. and Israel began launching strikes on February 28, the Iranian Red Crescent reports.

▪️ over 35 people killed Monday morning in southern Iran’s Fars province

▪️at least 8 different hospitals have suffered serious damage due to strikes

▪️the deadliest single incident was airstrike on girls' elementary school in Minab, which killed 168 people - most of them children. 

▪️multiple police stations have also been targeted
Quote

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Robert Inlakesh
@falasteen47
BREAKING: US-Israeli Strikes Commit Civilian Massacres In Tehran

This is carpet bombing, which has struck everything from playgrounds, to an emergency services HQ, schools, media buildings & medical facilities.

Earlier 555 were killed, hundreds of civilians were just murdered.
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Prem Thakker ツ @premthakker.bsky.social · 28/02/2026
The phrase “preemptive strike” is as insulting as when we were sold “humanitarian pauses” in the middle of a live-streamed genocide. The powerful looking you straight in the face and telling you your common sense simply doesn’t matter.
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Valentina Borghesani @vborghesani.bsky.social · 13/02/2026
Proud of being part of www.winrepo.org and of all the work we do! 💙
winrepo.org
Women in Neuroscience Repo
Listing of women working in Neuroscience
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Jesse Geerts @jessegeerts.bsky.social · 05/01/2026
🧠 New year, new preprint! Why does motor learning involve multiple brain regions? We propose that the cortico-cerebellar system learns a "map" of actions where similar movements are nearby, while basal ganglia do RL in this simplified space. www.biorxiv.org/content/10.6...
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Drop Site @dropsitenews.com · 04/01/2026
⭕️ At least 40 people, including civilians & members of the Venezuelan military, were killed in the attack, according to preliminary assessments, a senior Venezuelan official reportedly told the New York Times. US forces deployed more than 150 aircraft to eliminate air defenses, clearing the...
⭕️ JUST IN: At least 40 people, including civilians and members of the Venezuelan military, were killed in the attack, according to preliminary assessments, a senior Venezuelan official reportedly told the New York Times. 

U.S. forces deployed more than 150 aircraft to eliminate air defenses, clearing the way for helicopters to insert troops who then moved on President Nicolás Maduro’s location, the outlet said citing U.S. officials. More on the operation from Jack Murphy of The High Side in the post in reply.
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Jason Hickel @jasonhickel.bsky.social · 03/01/2026
Remember that the US *does not care* about the people of Venezuela. It is not about "narcotrafficking", or "democracy", or whatever propaganda they have going. It is *explicitly* about US control over oil, capital accumulation, and geopolitical power.
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naitian @naitian.org · 05/12/2025
A couple years (!) in the making: we’re releasing a new corpus of embodied, collaborative problem solving dialogues. We paid 36 people to play Portal 2’s co-op mode and collected their speech + game recordings. Paper: arxiv.org/abs/2512.03381 Website: berkeley-nlp.github.io/portal-dialo... 1/n
A figure demonstrating the different aspects of the corpus described in the tweet. There is a main isomorphic 3D view of a level in the Portal 2 co-op game, with some portals, lasers, and the blue and orange players. Inset, there are first-person captures of the blue and orange player views. There is also a box containing the transcribed dialogue with timestamps and labels for the discursive acts. Finally, there is a box containing a task and a list of subtasks. Some subtasks are already crossed out, with the time that they have been completed. The last subtask ("Player 2 places portal 4 on wall 4") is marked incomplete.

The dialogue is as follows:

Blue: Can you put your other portal up here? (tagged as directive)
Orange: Where? (tagged as request for clarification)
Blue: On uh, on this wall. (tagged as directive)
Blue: So that it uh points at the circle. (tagged as directive)
Orange: Okay. (tagged as commit)

The full list of subtasks is:

Task: Redirect lasers
Subtask: Player 1 places portal 1 on wall 1. (completed)
Subtask: Player 1 polaces portal 2 on wall 2 or 3. (completed)
Subtask: Player 2 places portal 3 opposite of portal 2. (completed)
Subtask: Player 2 places portal 4 on wall 4. (incomplete)
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Sander van Bree @sandervanbree.bsky.social · 04/12/2025
New preprint w/ Malin Styrnal & @martinhebart.bsky.social Have you ever computed noise ceilings to understand how well a model performs? We wrote a clarifying note on a subtle and common misapplication that can make models appear quite a lot better than they are. osf.io/preprints/ps...
osf.io
OSF
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Fernanda Ribeiro @felenitaribeiro.bsky.social · 01/12/2025
Investigating individual-specific topographic organization has traditionally been a resource-intensive and time-consuming process. But what if we could map visual cortex organization in thousands of brains? Here we offer the community with a toolbox that can do just that! tinyurl.com/deepretinotopy
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Nature Computational Science @natcomputsci.nature.com · 18/11/2025
📢 @samnastase.bsky.social and colleagues show that aligning ECoG data into a shared space improves how well LLMs predict brain activity during language comprehension. www.nature.com/articles/s43... #compneuro #Neuroscience #ArtificialIntelligence 🔓 rdcu.be/eQzYm
nature.com
Aligning brains into a shared space improves their alignment with large language models - Nature Computational Science
Aligning electrocorticography data into a shared space improves how large language models predict brain activity during language comprehension, enhancing encoding accuracy, cross-participant generaliz...
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Sushrut Thorat @martisamuser.bsky.social · 18/11/2025
🚨New Preprint! How can we model natural scene representations in visual cortex? A solution is in active vision: predict the features of the next glimpse! arxiv.org/abs/2511.12715 + @adriendoerig.bsky.social , @alexanderkroner.bsky.social , @carmenamme.bsky.social , @timkietzmann.bsky.social 🧵 1/14
arxiv.org
Predicting upcoming visual features during eye movements yields scene representations aligned with human visual cortex
Scenes are complex, yet structured collections of parts, including objects and surfaces, that exhibit spatial and semantic relations to one another. An effective visual system therefore needs unified ...
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Anna (Anya) Ivanova @neuranna.bsky.social · 23/10/2025
🤖📈 How do LLMs use their depth? Akshat Gupta led a fun project to find out! We leverage TunedLens (~linear decoding of tokens) to explore how LLMs' internal representations change from layer to layer. Preprint: arxiv.org/abs/2510.18871 1/
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Moufan Li @moufanli.bsky.social · 21/10/2025
I’m excited to share my recent preprint on a neural network model of free recall that learns multiple memory strategies including the memory palace! www.biorxiv.org/content/10.1...
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Jordan Theriault-Brown @jtheriault.bsky.social · 14/10/2025
Excited to share our work making an "allostasis-first" case that brain function is most productively framed in terms of its core regulatory function. We also introduce some new ideas in the context of metabolism and cognitive function in Alzheimer's. www.cell.com/neuron/fullt...
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 17/10/2025
Proudly published with @andreaeyleen.bsky.social: A metatheory of classical and modern connectionism. doi.org/10.1037/rev0... We touch on what has been up with connectionism as a framework for computational modelling — & for everything it seems these days with AI and LLMs — pre-2010 vs post. 1/n
article cover page
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Omri Raccah @omriraccah.bsky.social · 16/10/2025
thrilled to share our preprint on false memories in naturalistic recollection! Distinct paths to false memory revealed in hundreds of narrative recalls paper: doi.org/10.31234/osf... w/ phoebehc.bsky.social (co-first) Vy A. Vo @davidpoeppel.bsky.social @toddgureckis.bsky.social thread below 👇
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Heather L Kosakowski @kosakowski.bsky.social · 28/09/2025
My lab at USC is recruiting! 1) research coordinator: perfect for a recent graduate looking for research experience before applying to PhD programs: usccareers.usc.edu REQ20167829 2) PhD students: see FAQs on lab website dornsife.usc.edu/hklab/faq/
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Caterina Gratton @caterinagratton.bsky.social · 16/10/2025
Why do brain networks vary? Do these differences shape behavior? If every 🧠 is unique, how can we detect common features of brain organization? @rodbraga.bsky.social and I dig in, in @annualreviews.bsky.social (ahead of print): go.illinois.edu/Gratton2025-... #neuroskyence #psychscisky #MedSky 🧵👇
go.illinois.edu
Dense Phenotyping of Human Brain Network Organization Using Precision fMRI
The advent of noninvasive imaging methods like functional magnetic resonance imaging (fMRI) transformed cognitive neuroscience, providing insights into large-scale brain networks and their link to cog...
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Razia Sahi @raziasahi.bsky.social · 08/10/2025
Managing emotions is not easy - we often get by with a little help. In the NEW Social Interaction and Emotion Lab at Rutgers-Newark, we’ll study how social interactions regulate emotion using experiments, naturalistic data, and multi-modal approaches. ✨ Now recruiting! ✨🙌 Learn more: raziasahi.com
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Nancy Kanwisher @nancykanwisher.bsky.social · 10/10/2025
MIT Rejects the Compact! I am so proud. "The document also includes principles with which we disagree, including those that would restrict freedom of expression and our independence as an institution. And fundamentally, the premise of the document is inconsistent with our core belief ...
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Rodrigo Braga @rodbraga.bsky.social · 07/10/2025
📣 New preprint from the Braga Lab! 📣 The ventral visual stream for reading converges on the transmodal language network Congrats to Dr. Joe Salvo for this epic set of results Big Q: What brain systems support the translation of writing to concepts and meaning? Thread 🧵 ⬇️
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Sam Nastase @samnastase.bsky.social · 01/10/2025
I'm recruiting PhD students to join my new lab in Fall 2026! The Shared Minds Lab at @usc.edu will combine deep learning and ecological human neuroscience to better understand how we communicate our thoughts from one brain to another.
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Anna (Anya) Ivanova @neuranna.bsky.social · 29/09/2025
As our lab started to build encoding 🧠 models, we were trying to figure out best practices in the field. So @neurotaha.bsky.social built a library to easily compare design choices & model features across datasets! We hope it will be useful to the community & plan to keep expanding it! 1/
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 06/09/2025
Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia: doi.org/10.5281/zeno... We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical thinking, expertise, academic freedom, & scientific integrity. 1/n
Abstract: Under the banner of progress, products have been uncritically adopted or
even imposed on users — in past centuries with tobacco and combustion engines, and in
the 21st with social media. For these collective blunders, we now regret our involvement or
apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we
are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not
considered a valid position to reject AI technologies in our teaching and research. This
is why in June 2025, we co-authored an Open Letter calling on our employers to reverse
and rethink their stance on uncritically adopting AI technologies. In this position piece,
we expound on why universities must take their role seriously toa) counter the technology
industry’s marketing, hype, and harm; and to b) safeguard higher education, critical
thinking, expertise, academic freedom, and scientific integrity. We include pointers to
relevant work to further inform our colleagues.Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI
(black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are
in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are
both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and
Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf.
Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al.
2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA).Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms
are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe.Protecting the Ecosystem of Human Knowledge: Five Principles
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Grace Lindsay @neurograce.bsky.social · 14/09/2025
I've only read the abstract and I already know this paper is so very correct 👀
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Mark Thornton @markthornton.bsky.social · 03/09/2025
The psych job market may not be dead... but it is gravely injured 😬 So far it's looking like the Trump administration's attacks on higher ed/research are going to have more than 2x the impact on the job market as the covid-19 pandemic. #psychjobs #neurojobs #academicjobs
Bar plot showing the number of psychology jobs posted each year by area. There are major dips in 2020 due to covid, and in 2025 (now).
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Heejung Jung @jungheejung.bsky.social · 04/09/2025
New Open dataset alert: 🧠 Introducing "Spacetop" – a massive multimodal fMRI dataset that bridges naturalistic and experimental neuroscience! N = 101 x 6 hours each = 606 functional iso-hours combining movies, pain, faces, theory-of-mind and other cognitive tasks! 🧵below
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CNSP Workshop @cnspworkshop.bsky.social · 22/08/2025
🚨 Just over a week left to register for the #CNSP2025 Online Workshop (details in post below)! 🚨 Link to the workshop registration form: docs.google.com/forms/d/e/1F...
docs.google.com
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Grace Lindsay @neurograce.bsky.social · 15/08/2025
The rumors are true! #CCN2026 will be held at NYU. @toddgureckis.bsky.social and I will be executive-chairing. Get in touch if you want to be involved!
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Kanishka Misra @kanishka.bsky.social · 17/07/2025
I will unfortunately have to skip SCiL this year, but I am thrilled to share that Jwalanthi will be presenting this work by her, @rjha.bsky.social, me, and @kmahowald.bsky.social on a tool that allows you to project contextualized embeddings from LMs to interpretable semantic spaces!
Title page of SCIL extended abstract titled: semantic-features: A User-Friendly Tool for Studying Contextual Word Embeddings in Interpretable Semantic Spaces
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Jamal A. Williams @jayneuro.bsky.social · 08/07/2025
Music is an incredibly powerful retrieval cue. What is the neural basis of music-evoked memory reactivation? And how does this reactivation relate to later memory for the retrieved events? In our new study, we used Eternal Sunshine of the Spotless Mind to find out. www.biorxiv.org/content/10.1...
biorxiv.org
Music-evoked reactivation during continuous perception is associated with enhanced subsequent recall of naturalistic events
Music is a potent cue for recalling personal experiences, yet the neural basis of music-evoked memory remains elusive. We address this question by using the full-length film Eternal Sunshine of the Spotless Mind to examine how repeated musical themes reactivate previously encoded events in cortex and shape next-day recall. Participants in an fMRI study viewed either the original film (with repeated musical themes) or a no-music version. By comparing neural activity patterns between these groups, we found that music-evoked reactivation of neural patterns linked to earlier scenes in the default mode network was associated with improved subsequent recall. This relationship was specific to the music condition and persisted when we controlled for a proxy measure of initial encoding strength (spatial intersubject correlation), suggesting that music-evoked reactivation may play a role in making event memories stick that is distinct from what happens at initial encoding. ### Competing Interest Statement The authors have declared no competing interest. National Institutes of Health, https://ror.org/01cwqze88, F99 NS118740, R01 MH112357
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Sam Nastase @samnastase.bsky.social · 07/07/2025
Check out Zaid's open "Podcast" ECoG dataset for natural language comprehension (w/ Hasson Lab). The paper is now out at Scientific Data (nature.com/articles/s41...) and the data are available on OpenNeuro (openneuro.org/datasets/ds0...).
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Sam Nastase @samnastase.bsky.social · 30/06/2025
How do different languages converge on a shared neural substrate for conceptual meaning? Happy to share a new preprint led by Zaid Zada that specifically addresses this question:
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Sam Nastase @samnastase.bsky.social · 25/06/2025
Really excited to share our new preprint led by @ahmadsamara.bsky.social with Zaid Zada, @vanderlab.bsky.social, and Uri Hasson titled "Cortical language areas are coupled via a soft hierarchy of model-based linguistic features" doi.org/10.1101/2025...
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Lenny van Dyck @levandyck.bsky.social · 18/06/2025
How is high-level visual cortex organized? In a new preprint with @martinhebart.bsky.social & @kathadobs.bsky.social, we show that category-selective areas encode a rich, multidimensional feature space 🌈 www.biorxiv.org/content/10.1... #neuroskyence 🧵 1/n
biorxiv.org
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Zejin Lu @zejinlu.bsky.social · 06/06/2025
Now out in Nature Human Behaviour @nathumbehav.nature.com : “End-to-end topographic networks as models of cortical map formation and human visual behaviour”. Please check our NHB link: www.nature.com/articles/s41...
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Tamara Vanderwal @vanderlab.bsky.social · 04/06/2025
New preprint from the Hasson Lab🪄Delineates coupling b/w regions within the language network AND shows the elements of language that connect them. Led by @ahmadsamara.bsky.social; thanks @samnastase.bsky.social Zaid Zada & Uri Hasson. 💥 www.biorxiv.org/content/10.1...
biorxiv.org
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CNSP Workshop @cnspworkshop.bsky.social · 16/05/2025
🚨Registration now open for #CNSP2025 Workshop! Date: 2–3 September 2025 Location: Online (Zoom) Registration Fee: €30 (financial support available) Registration Deadline: 31 August 2025 For more information and to register, follow the link: cnspworkshop.net/workshops.html
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Qing Yao @qyao.bsky.social · 31/03/2025
LMs learn argument-based preferences for dative constructions (preferring recipient first when it’s shorter), consistent with humans. Is this from memorizing preferences in training? New paper w/ @kanishka.bsky.social , @weissweiler.bsky.social , @kmahowald.bsky.social arxiv.org/abs/2503.20850
examples from direct and prepositional object datives with short-first and long-first word orders: 
DO (long first): She gave the boy who signed up for class and was excited it.
PO (short first): She gave it to the boy who signed up for class and was excited.
DO (short first): She gave him the book that everyone was excited to read.
PO (long-first): She gave the book that everyone was excited to read to him.
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Caroleeena @caroleeena.bsky.social · 29/03/2025
🧵Masked ICE thugs attempted to abduct the school nurse at Cooke Elementary School, located in the densely populated Adams Morgan section of DC. Workers at the school intervened, demanding a warrant and holding up their phones and ICE scurried off without making their arrest.
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