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Khalspi

@khalspi.bsky.social
4.2K followers 4.1K following 324 posts

Finance/Accounting/Tech. Interested in cognitive and social psychology, neuroscience, and policy. Jamaican 🇯🇲 | White Room Student | True Neutral

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Reposted by Khalspi
Sophie Greenwood @sjgreenwood.bsky.social · 29/09/2026
If you're searching for PhD opportunities, check out this feed I created using @graze.social! ➡️ bsky.app/profile/sjgr...
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Nicole Rust @nicolecrust.bsky.social · 26/09/2026
I'm so impressed with all that's going on at @sinaibrain.bsky.social. Here are 5 highlights. 1. @bshev.bsky.social ++ are measuring dopamine and serotonin *in living human brains* and using them to predict treatment outcomes. Wow. www.biorxiv.org/content/10.6...
Dopamine and serotonin transients predict depressive symptom relief following deep brain stimulation of human subcallosal cingulate cortex
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Ana Dorrego Rivas @adorrego.bsky.social · 22/09/2026
Action potential waveforms are state-dependent www.biorxiv.org/content/10.6...
biorxiv.org
Action potential waveforms are state-dependent
Action potentials are brief electrical impulses that form the mechanistic basis for how neurons communicate. While it is well known that the shape of action potentials can differ across neurons, one f...
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tbabb @tbabb.bsky.social · 19/09/2026
token seller. I'm going into battle. give me your strongest tokens. my tokens are too strong for you, traveler. you cannot handle them.
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Rochelle Kaper @rochellekaper.bsky.social · 16/09/2026
PREPRINT UPDATE🥳👇: 🧠learning under uncertainty & metacognitive processes are not as generalizable as previously thought! both evolve differently depending on structure & stimulus set osf.io/preprints/ps...
osf.io
OSF
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Jeremiah Cohen @jeremiahycohen.bsky.social · 16/09/2026
Happy to share the version of record of our locus coeruleus paper here: www.nature.com/articles/s41... Prior thread on some of our discoveries in this study: bsky.app/profile/jere...
nature.com
Topographic structure and function of locus coeruleus noradrenaline neurons - Nature
Dorsal and ventral noradrenergic neurons in the locus coeruleus form topographic subpopulations whose projection patterns and activity encode choice switching, reward-prediction errors and disregard o...
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Juan Gallego @juangallego.bsky.social · 15/09/2026
Just came across this interesting list my @markhisted.org so I thought I'd share it. Thanks Mark for putting it together! (disclosure: contains me) go.bsky.app/RnPdB5N
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Luke Sjulson @lukesjulson.bsky.social · 15/09/2026
With the beginning of the new academic year, I'm reposting the info for our free online neuroscience methods course. If you're starting a PhD in neuroscience, or just want a refresher, this is for you!
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Philip Ball @philipcball.bsky.social · 11/09/2026
I am rather delighted by this paper. So here’s a thread to tell you why, and why it matters. /1 www.science.org/doi/10.1126/...
science.org
Noncoding transcription controls the developmental dynamics of long-range gene regulation
The genomic regions regulating gene expression are often themselves transcribed into a variety of noncoding RNAs (ncRNAs). However, the regulatory roles of this noncoding transcription remain largely unknown. By using live imaging, we reveal that the ...
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Drew Schreiner @schreinerdrew.bsky.social · 09/09/2026
I’m on the faculty job market this fall! 🐦🧠 I’m an NIH K99/R00 awardee studying how the brain learns complex skills, using birdsong to connect molecules, synapses, circuits, behavior & computation. Know of a search where I might fit? Please send it my way & share!
drewschreiner.github.io
Drew Schreiner, Ph.D. | Neuroscience of Learning
I use birdsong to understand how the brain learns complex skills across molecules, synapses, circuits, behavior, and computation. On the 2026–27 faculty job market.
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Nitzan Shahar @shaharnitzan.bsky.social · 09/09/2026
Fantastic work by @idoba.bsky.social showing humans can't stop learning automatically, even when it leads to losses. Now out ar @natcomms.nature.com !!
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Niklas Buergi @niklasbuergi.bsky.social · 09/09/2026
Autism has long been linked to difficulties with Theory of Mind. But what exactly is driving these differences? And what happens in the brain? In our new preprint, we show that adaptive mentalization might be key. A 🧵 #CogSci #CogNeuro osf.io/preprints/ps...
Repeated Rock-Paper-Scissors task used to study adaptive mentalization, alongside a schematic showing increasingly sophisticated reasoning strategies, from responding to past actions to trying to guess the opponent’s prediction about one’s own next action
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Matteo Carandini @carandinilab.net · 09/09/2026
If you thought "everything is everywhere" in the brain: inactivations reveal a clear distinction of labor. Sensory areas sense, colliculus promotes eligible actions (!), and prefrontal cortex integrates. The role of superior colliculus in a logistic decision www.biorxiv.org/content/10.6...
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Ben Hayden @benhayden.bsky.social · 09/09/2026
New paper from the Neurosurgery Research Team at BCM! “Neural geometry in the human hippocampus enables generalization across spatial position and gaze” led by @assiachericoni.bsky.social! 🧵 www.cell.com/neuron/abstr...
cell.com
Neural geometry in the human hippocampus enables generalization across spatial position and gaze
Chericoni et al. show that neurons in the human hippocampus track the positions of multiple agents in a simple pursuit-based video game. They identified place codes for each agent and for gaze. The co...
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Roostersworldja @roostersworldja.bsky.social · 07/09/2026
What better place to be than exploring. You just dont know what you will find. @RoostersWorldJA
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Nicole Rust @nicolecrust.bsky.social · 04/09/2026
The superposition of these two studies — both incredible — reflect a snapshot of "one big thing" systems neuroscience has yet to resolve. In mice: 1. Task-related signals are everywhere. 2. Absent large swaths of "everywhere," suprisingly sophisticated learning & behavior remains.
Post by Enny van Beest, "Brainwide representation of navigation"Post by Jieyu Zheng, "How fast can mice learn complex mazes?"
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Daniel Mewes @dmewes.com · 04/09/2026
This is Hebbie. He lives on my website dmewes.com . Hebbie learns how to interact with his environment through online Hebbian learning while you watch.
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Joey Saito @jsaito25.bsky.social · 03/09/2026
Has anyone taught a course of the Cognitive Neuroscience of Vision (w/ emphasis on the neuro side)? Would you be able and willing to share your slides etc. to help me develop a course?
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Dezső Németh @nemeth.bsky.social · 03/09/2026
Why are younger children so good at learning new skills? One reason may be that they are better at a fundamental cognitive mechanism: statistical learning. We followed the same children from age 7 to 14 and found that this learning gradually decreases as they grow older. doi.org/10.1038/s414...
doi.org
Longitudinal evidence for decreasing statistical learning abilities across childhood - Nature Communications
Through statistical learning, people extract patterns from the environment to predict future events. In a longitudinal study, the authors show that statistical learning declines with age and that high...
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Juha Karvanen @juhakarvanen.bsky.social · 01/09/2026
When does“variance explained” actually mean causation? In our new preprint, Olli Saarela and I develop graph-based causal variance decompositions. The framework clarifies when components of an ordered variance decomposition have causal interpretations. arxiv.org/abs/2608.27140
arxiv.org
Graph-based causal variance decompositions: When "variance explained" means causation
Recursive application of the law of total variance decomposes the marginal variance of an outcome into components attributed to explanatory variables and a residual component. The resulting decomposit...
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Giorgio Marinato @neurogima.bsky.social · 30/08/2026
We assembled a sounds dataset we think is a real resource for the whole auditory cognition & neuroscience community. Curated from a huge pool of sounds, plus large-scale verbal-identification & familiarity-rating data → rich sound and behavioral norms. Preprint & dataset links below 🧵
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Matthew Apps @brainapps.bsky.social · 28/08/2026
Out now @natcomms.nature.com. how do deadlines shape effort processing? We show that deadlines cause us to seek high effort rather than avoid it. Why? Becease effort makes progress towards completing goals, making it valuable, a process coordinated by fronto-striatal computations.
nature.com
Neural and computational mechanisms of effort under the pressure of a deadline - Nature Communications
People are effort-averse in most situations but can exert effort for little reward when progressing towards goals. Here, the authors show that under deadline pressure people become effort-seeking whil...
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Liron Rozenkrantz @lironrozenkrantz.bsky.social · 17/08/2026
🔥🔥New paper alert! Super excited to share our paper, out today in @nathumbehav.nature.com, led by the wonderful Dr. Nofar Mizrachi! nature.com/articles/s41... To me, this finding fundamentally changes how we should think about the relationship between cognition and immune regulation:
nature.com
Voluntary attention regulates acute immune responses in humans - Nature Human Behaviour
Mizrachi et al. show that directing attention to bodily sensations, rather than away, promotes more regulated acute inflammatory responses in healthy volunteers, revealing sensory and vagal pathways l...
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Megan deBettencourt @mdebettencourt.bsky.social · 17/08/2026
Come work with me at Google! We have an open 6-month temp role on my team - it’s a great opportunity for someone with a cog neuro or psych background interested in exploring big tech. Looking for comp modeling experience (e.g. RL, DDMs) and Python/JS. Reach out to learn more or pass along any names!
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 12/08/2026
For the past six months @mariaa.bsky.social and I have been working on creating an improved research experience on atproto. It's now live! Check out: lea.ac
leaflet.pub
Lea: research-oriented social media
Introducing a beta-version of our new research-focused social media platform
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Maria Antoniak @mariaa.bsky.social · 12/08/2026
Check it out! Lea is live and open to the public 🥳 Lea is an experiment to build better social media by researchers and for researchers, where we own our own data and can build our own feeds, events, and communities. This is still very much a proof-of-concept; we welcome ideas + collaborators!
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Mads A. J. Madsen @justmadsen.bsky.social · 11/08/2026
New here, (finally) moving over from X. Neuroscientist at @drcmr-mri.bsky.social in Copenhagen. I work on why multiple sclerosis lesions in different places can cause the same symptom. Mainly figures, methods, and papers I'm reading.
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Doll @dollspace.gay · 09/08/2026
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Sung Kim @sungkim.bsky.social · 04/08/2026
Google DeepMind's DiffusionGemma Technical Report They feel text diffusion models open up a radically different part of the latency–quality Pareto frontier and hope the report makes it easier for researchers and engineers to understand the model, build on it, and create things we haven’t thought of
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James MacGlashan @jmac-ai.bsky.social · 03/08/2026
Are policy gradient methods hopeless without other machinery? Deep learning works well when the Hessian is well conditioned. But the policy objective is under no obligation to give us that. And no amount of architecture engineering can rescue us from problems w/ the objective.
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Viktor Timokhov @vutyan.bsky.social · 03/08/2026
At the #CCN2026, I present our on-going simulation study: we assessed whether habit and/or range adaptation can explain previously observed and replicated choice frequency effects in the Reward Pairs Task - a recent instrumental learning task developed to elicit habits. More info at the poster C29!
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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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Jennifer Bussell PhD @jenbussell.bsky.social · 30/07/2026
How does the brain represent the value of knowledge? In our paper--out now at Nature Neuroscience--we identify a representation of intrinsic information value within neural population structures in the orbitofrontal cortex in mice. www.nature.com/articles/s41593-026-02377-y #neuroskyence 🧠🧪 (1/8)
nature.com
Representations of the intrinsic value of information in mouse orbitofrontal cortex - Nature Neuroscience
Mice are motivated to seek information of no extrinsic value. Recording neural activity in orbitofrontal cortex reveals a representation of the value of information that is distinct from the value of ...
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The Transmitter @thetransmitter.bsky.social · 29/07/2026
Dendrites keep their own memory of the past and even predict the future independently of the cell body. #neuroskyence By @natmesanash.bsky.social www.thetransmitter.org/memory/dendr...
thetransmitter.org
Dendrites compute independently of cell body
Depending on their distance from the cell body, dendrites play different roles in learning and memory.
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Nick Gaspelin @ngaspelin.bsky.social · 27/07/2026
We have recently published work in Psych Science and JEP:LMC showing a surprising relationship between initial capture and learned suppression of salient distractors. Ultimately, this has led us to believe that attentional control is much more flexible than often assumed. Read more on my blog!
gaspelinblog.wordpress.com
From Capture to Suppression: How Distraction Shapes Attentional Control
By Nick Gaspelin and Yue Zhang Zhang, Y. & Gaspelin, N. (2026a). From capture to control: Initial capture increases learned suppression. Psychological Science. 37(4), 2…
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Jacob Lab @jacob-lab.bsky.social · 24/07/2026
🚨 New preprint 🚨 How does the brain learn new things without rebuilding what it already knows? www.biorxiv.org/content/10.6... Fantastic work led by @yuyanghuang.bsky.social and Leonie Mehrke, with Tobias Bernklau and @laurabusse.bsky.social #neuroskyence #neuroscience #learning #PFC 🧪🧠 🧵👇
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Khalspi @khalspi.bsky.social · 15/07/2026
So if I'm understanding this right, a bigger token budget for an employee may become a status symbol? Interesting.
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Veronica Diveica @veronicadiveica.bsky.social · 14/07/2026
The default network is often thought to interfere with the selective deployment of attention—but our new @pnas.org paper shows a different story… 👉 Find the paper here: doi.org/10.1073/pnas... 1/🧵
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Thorne 🌸 @ens0.me · 04/07/2026
Probably should've done this ages ago, but I just setup a Ko-fi page. Extra support is deeply appreciated. I'm paying for hosting out of pocket, now a couple of months into being unemployed, and my birthday is in a couple of days. ko-fi.com/ens0dotme
ko-fi.com
Support Thorne 🌸
Support Thorne 🌸
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Chris Petersen @cpetersen-cs.bsky.social · 11/07/2026
An interesting research direction that changes the guts of #AI models and their performance / capacity. Even more so because it can be dropped in with little work (in theory)... research.ibm.com/blog/cofrgen...
research.ibm.com
CoFrGeNets replace the ‘bones’ of transformer-based models
This new approach, a practical and conceptual shift, points to lighter-weight generative AI models that perform competitively, and in many cases even better.
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Ramon Astudillo @ramon-astudillo.bsky.social · 10/07/2026
Spread the word if you are interested in a ML bsky community
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ICML Conference @icmlconf.bsky.social · 10/07/2026
We appreciate the love ❤️ But limited engagement and few followers on Bsky makes some (not us!) question whether it's worth it Be sure to follow (and share with your ML friends!) if you want to see more updates from ICML!
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Liu, Shuze @liushuze.bsky.social · 06/07/2026
Do people solve hard problems by first building a mental model, then searching for the best solution? With @gershbrain.bsky.social, our new manuscript suggests a different route: people often start by retrieving cached solutions, and scaffold representations around them. osf.io/preprints/ps...
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Nils Feldhus @nfel.bsky.social · 03/07/2026
🙋 Looking for emergency reviewers for ARR May / #EMNLP2026 Topics: Interpretability/Explainability, RAG, Answer Attribution, Knowledge Conflicts If you're willing to complete a review before July 6 AoE, please reply or send a DM!
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Steven Scholte @neurosteven.bsky.social · 03/07/2026
🧵 New paper from lab, CNN shape bias is optimal when training focuses on the object (similar to toddlers) bias peaks. Too much background, or over-cropping that breaks the object → it falls. doi.org/10.1080/0954... 💾 led by @niklasmuller.bsky.social, w/ @cgmsnoek.bsky.social @irisgroen.bsky.social
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Roddy Grieves @roddy-grieves.bsky.social · 02/07/2026
During sleep, neurons in the hippocampus 'replay' past activity patterns. This is thought to underlie memory consolidation 🧠 After a busy day, how does the brain sort out what is worth replaying? 🤔 Check out this preprint 📃 from Tirole, Duvelle and Bendor for answers! doi.org/10.64898/202...
doi.org
Time, but not reward, shapes replay-based episodic prioritization
Why are some experiences remembered better than others? Leading theories propose that hippocampal replay prioritizes memories for consolidation according to their expected future value. We recorded hi...
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Ye Lab @liye-tsri.bsky.social · 02/07/2026
Our new preprint is out!! The human brain runs on ~20 watts. Computers and modern AI systems require vastly higher energy. This gap raises a fundamental question: how does the brain compute so efficiently? In our new study, we take a critical step toward measuring and understanding this directly 1/3
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Pablo Samuel Castro @pcastr.bsky.social · 01/07/2026
I'm excited to share our latest work “Representation Learning Enables Scalable Multitask Deep Reinforcement Learning”. In this work, we revisit a fundamental question in reinforcement learning: What if representation learning was the key ingredient behind scalable RL? 1/🧵
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Asa @asa.engineer · 30/06/2026
there are serious risks involved with AI. for example, what if the most capable models fall into the wrong hands, who wish to use them to concentrate power, lock down access, hand unchecked control to authoritarian governments, and do secretive fingerprinting to sort users based on national origin?
Dario Amodei
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GerstnerLab @gerstnerlab.bsky.social · 29/06/2026
How can the brain learn the hidden hierarchical structure from high dimensional data? In our latest work, we use synthetic datasets to analyze two classes of bio-plausible learning rules: variants of Direct Feedback Alignment, and local self-supervised learning. We find only the latter succeeds.
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