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Kun Dong

@kundong.bsky.social
122 followers 245 following 27 posts

PhD candidate@DondersInst| Formerly CNS Msc@DondersInst| Multisensory perception| Neural decoding| Temporal dynamics| System Neuroscience

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Reposted by Kun Dong
neurosock @neurosock.bsky.social · 01/10/2026
Mix. selectivity is everywhere in cortex: from vis. to PFC This paper relates to Cover's theorem but the typical explainer kind of sucks I'll try to explain how the theory relates to the paper, and the importance of "weird" neurons A🧵with my toy model and notes: #neuroskyence #compneuro #NeuroAI
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Kobe Desender @kobedesender.bsky.social · 29/09/2026
"Trial-by-trial fluctuations in decision criterion shape confidence"! Now out in @nathumbehav.nature.com led by Robin Vloeberghs, Lara Navarette, @anne-urai.bsky.social and me. PDF: desenderlab.com/wp-content/u... Fluctuating Thread ↓↓↓
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Luke Sjulson @lukesjulson.bsky.social · 13/12/2024
Neuroscience students asked us to teach a PRACTICAL course on experimental methods, and it is now on YouTube! Please like and repost to help us get the word out! www.youtube.com/playlist?lis... Lecture 1: Signals and data acquisition Focusing on hardware, digital/analog I/O, synchronization 🧵
youtube.com
Neuroscience methods - YouTube
Nanocourse: Approaches to Study Neural Circuits This course was taught by Anita Autry, Tiago Gonçalves, and Luke Sjulson at Albert Einstein College of Medici...
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Renzo Lanfranco @renzolanfranco.bsky.social · 14/09/2026
How much information about a stimulus is available to a perceptual system, and how much of that information becomes consciously accessible? In this new Perspective, “Perceptual awareness as an information-distribution problem,” I propose an information-theoretic framework. 🧵Preprint: osf.io/zmf5h
osf.io
OSF
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Steve Fleming @smfleming.bsky.social · 09/09/2026
Glad to be part of this elegant study that is reshaping the way I think about metacognition. Confidence is strikingly goal-sensitive, with supposedly sensory biases such as PEB being readily flipped through instruction. Led by Prady Sepulveda and Benedetto De Martino www.biorxiv.org/content/10.6...
biorxiv.org
Goals shape human confidence
Confidence guides our decisions: it determines when we commit to a choice, gather more information, or change our minds. Prominent models treat confidence as a readout of the evidence in support of a ...
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Reposted by Kun Dong
Earl K. Miller @earlkmiller.bsky.social · 01/09/2026
Inferential planning in the frontal cortex www.cell.com/cell-reports... #neuroscience
cell.com
Inferential planning in the frontal cortex
This study proposes inferential planning as a framework for understanding frontal neural activity during sequential behaviour. Using active inference models, Donnarumma et al. reproduce key findings f...
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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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Kara McGaughey @kara-mcgaughey.bsky.social · 10/08/2026
New paper from my PhD out in @elife.bsky.social! 🎉 We asked: when the state of the world is changing, how does the brain adjust how much incoming evidence is accumulated? Turns out there isn't one answer—there are (at least) two. 🧵
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CLaE @claeneuro.bsky.social · 24/07/2026
Exclusive: Death of girl in Chinese gene-editing trial was never made public | Science | AAAS www.science.org/content/arti...
science.org
Exclusive: Death of girl in Chinese gene-editing trial was never made public
Parents want accountability after study went disastrously wrong, Science and Retraction Watch investigation reveals
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Chaz Firestone @chazfirestone.bsky.social · 18/07/2026
out today! www.pnas.org/doi/10.1073/...
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neurosock @neurosock.bsky.social · 16/07/2026
This recent post by @earlkmiller.bsky.social got my attention. It shows how abstraction could emerge in the primate PFC. The paper is hard, but the main idea can be simplified to low-dims, so I made fun a little animation. A🧵with my toy model and notes: #neuroskyence #compneuro #NeuroAI
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Britton Sauerbrei @brittonsauerbrei.bsky.social · 30/06/2026
1/N Excited to share a major update to this work, which includes (1) identification of a thalamocortical communication subspace, (2) cortical lesions which induce selective behavioral deficits, and (3) extraction of cortical readouts by EMG decoding. www.biorxiv.org/content/10.1... Thread:
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Tim Behrens @behrenstimb.bsky.social · 27/06/2026
This paper is an absolutely beautiful combination of a deep set of cognitive ideas, a super creative task, a surprisingly impressive behaviour, and an elegant modelling framework. One of my favourite things in the last year.
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Nature @nature.com · 23/06/2026
A researcher in Europe feels left out of their team and held to different standards from their colleagues. How can they challenge exclusion without risking their position? go.nature.com/4eqGadJ
go.nature.com
How should I respond to race-based exclusion in my lab?
A researcher in Europe feels left out of their team and held to different standards from their colleagues. How can they challenge exclusion without risking their position?
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Stefano Palminteri @stepalminteri.bsky.social · 23/06/2026
New paper in Nature Communications 🎉 Led by @romanececchi.bsky.social, with @sgluth.bsky.social, we show that attention shapes value normalization in human reinforcement learning. Eye-tracking models explain nonlinear reward scaling better than an ad hoc parameter. www.nature.com/articles/s41...
nature.com
Attention modulates value normalization in human reinforcement learning by shaping reward encoding - Nature Communications
People’s reward learning is shaped by context, but the cognitive origins of this bias remain poorly understood. Here, the authors provide evidence that attention may underlie these distortions by shap...
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Reposted by Kun Dong
Matteo Lisi @mlisi.bsky.social · 11/06/2026
New paper out ! 📣 Across a careful and extensive set of experiments spearheaded by @rimskyrobert.bsky.social, we show that conscious access to a word’s meaning can occur *without* access to its appearance or low-level sensory features. #PsychSciSky #neuroskyence @rhulpsychology.bsky.social
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Drew Schreiner @schreinerdrew.bsky.social · 10/06/2026
1/ We work hard to factor "noise" out of behavior. But the brain doesn't. Strip away noise and you may miss what the brain evolved to do I wanted to share this pre-Bluesky paper where we found premotor (M2) corticostriatal circuits encode a broad history of behavior, beyond just action + reward 👇
nature.com
Information normally considered task-irrelevant drives decision-making and affects premotor circuit recruitment - Nature Communications
Prior experience is used by the brain to guide adaptive behaviour during decision making. Here, the authors show that mice also selectively use information learned through recent and longer-term exper...
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Jan Theeuwes @jthee.bsky.social · 04/06/2026
Our newest finding: tiny microsaccades are biased toward the location that is about to be attentionally suppressed. This suggests that attention briefly precedes suppression: before the system can suppress a location, it first appears to select it.
nature.com
Learned statistical regularity modulates anticipatory micro-saccades toward suppressed distractor locations - Nature Communications
Statistical learning guide attention by shaping anticipatory oculomotor behavior. Here, the authors show that microsaccades are biased to expected distractor locations before stimulus onset and predic...
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Stefano Palminteri @stepalminteri.bsky.social · 29/05/2026
Our book is officially out and there is even an audiobook version! Unfortunately, it’s not narrated by us, so you’ll miss out on our lovely Italian/French accents (a tragic loss for audiobook history). Apparently, Amazon.fr has only three copies left: THANK YOU! www.amazon.fr/Decision-Mak...
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Earl K. Miller @earlkmiller.bsky.social · 24/05/2026
Sensorimotor transformation of number in the primate parietal cortex www.nature.com/articles/s41... #neuroscience
nature.com
Sensorimotor transformation of number in the primate parietal cortex - Nature Communications
How the brain transforms perceived number into corresponding numbers of self-generated actions is unknown. Here, the authors show that neurons in primate ventral intraparietal area are tuned to the nu...
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Reposted by Kun Dong
Armin Lak @laklab.bsky.social · 22/05/2026
Awesome results from @fluketc.bsky.social @dudman.bsky.social and team, both for dopamine field and for all that train animals in tasks www.science.org/doi/10.1126/...
science.org
Reward magnitude determines reinforcement learning efficiency
Standard animal learning studies minimize individual reward magnitudes to maximize the repetitions of reinforced behaviors. We investigated how reward magnitude influences initial learning across five...
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Arkady Konovalov @arkadykonovalov.bsky.social · 13/05/2026
📣 New preprint 📣 "Neural Dynamics of Belief and Value Computations Guiding Strategic Social Decisions" We use EEG and computational modeling (combining learning + DDM) to explain participants' choices, RT, and neural signals in a strategic game. www.biorxiv.org/content/10.6...
biorxiv.org
Neural Dynamics of Belief and Value Computations Guiding Strategic Social Decisions
Successful strategic behavior must be grounded in beliefs about the opponent and her intentions. While many potential models have been proposed to explain choices in such situations, the neural mechanisms that govern learning and choice in complex strategic contexts remain poorly understood. Here, we use a computational model that combines dynamic learning and choice mechanisms to explain both choices and response times of human participants engaged in a competitive strategic task. Using electroencephalography (EEG), we identify temporally structured stages of neural processing that support an evolving value-based decision process, corresponding to first- and second-order belief updates and evidence accumulation related to the comparison of action values. Gamma-band phase coupling between central and parietal EEG signals varied with individual winning rate, suggesting that strategic behavior involves coordinated information transfer across spatially remote areas. Together, our data characterize the temporally evolving neural dynamics of belief and valuation processes that underlie strategic choice and provide neural validation for assumptions embedded in computational models of this behavior. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, 725355
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Oliver Kannape @oakannape.bsky.social · 12/05/2026
our article is now live in @cp-iscience.bsky.social We argue that action monitoring and ultimately our sense of agency involve an effector-independent representation of our movements => Motor equivalence in motor awareness www.cell.com/iscience/ful... Read, share, comment :)
cell.com
Motor equivalence in motor awareness
Psychology
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Nick Myers @nick-myers.bsky.social · 01/05/2026
New preprint led by @mateuspsi.bsky.social and @andrecravo.bsky.social dissociating absolute from relative time estimation in the brain. Thanks for having me along! Nice to see this out even though it's also a reminder of how much we miss Mark...
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Drew Schreiner @schreinerdrew.bsky.social · 19/03/2026
Every talk is a job talk
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Cian O'Donnell @cianodonnell.bsky.social · 07/03/2026
RIP efficient coding 😜
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Earl K. Miller @earlkmiller.bsky.social · 28/02/2026
This paper argues against higher-order theory (HOT) of consciousness. But its conclusion matches my understanding of HOT: conscious experience requires both a higher-order model and its linkage to posterior cortex. doi.org/10.1080/0951... #neuroscience
doi.org
Neuroscience undermines the higher-order theorists’ preferred solution to the targetless HOT problem
The Higher-Order Theory (HOT) of consciousness holds that mental states become conscious when they are represented by another mental state. Most HOT theorists maintain that it is the higher-order, ...
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Lucas Benjamin @lucaswbenjamin.bsky.social · 27/02/2026
Excited to share our new paper in @pnas.org with @bnmorillon.bsky.social & @valentinwyart.bsky.social www.pnas.org/doi/10.1073/... We study three core inference systems, and how their interaction shapes human learning and decision-making.
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Heleen Slagter @haslagter.bsky.social · 29/01/2026
What is the brain for? Active inference is widely discussed as a unifying framework for understanding brain function, yet its empirical status remains debated. Our review identifies core predictions across the action-perception cycle and evaluates their empirical support: osf.io/preprints/ps...
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Auditory-Visual Speech Association (AVISA) @avsp.bsky.social · 16/01/2026
Learning realistic lip motions for humanoid face robots www.science.org/doi/10.1126/... "anthropomorphic robots often fail to achieve lip-audio synchronization, resulting in clumsy and lifeless lip behaviors" Here: soft silicone lips actuated by a 10–degree-of-freedom mechanism- not uncanny at all 😉
science.org
Learning realistic lip motions for humanoid face robots
We propose a self-supervised facial action transformer that enables multilingual lip synchronization in humanoid robots.
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WholesomeMemes @wholesomememe.bsky.social · 17/12/2025
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Trends in Cognitive Sciences @cp-trendscognsci.bsky.social · 20/10/2025
Online Now: Hierarchical interactions between sensory cortices defy predictive coding
dlvr.it
Hierarchical interactions between sensory cortices defy predictive coding
Perceptual experience depends on recurrent interactions between lower and higher cortices. One theory, predictive coding, posits that feedback from higher to lower brain regions decreases neuronal activity predicted by higher-level representations. Despite the widespread adoption of predictive coding in neuroscience, the correspondence to neurophysiological findings in sensory cortices remains elusive. Here, we review how the canonical patterns of intra- and inter-cortical interactions that occur during perception and shifts of attention deviate from those predicted by predictive coding. We argue that these circuit interactions are better captured by alternative theories, which we summarize under the umbrella term BELIEF. We review how BELIEF theories account for the inter-areal interactions during attentive perception.
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Auditory-Visual Speech Association (AVISA) @avsp.bsky.social · 07/11/2025
Correlation detection as a stimulus computable account for AV perception, causal inference & saliency maps in mammals elifesciences.org/articles/106... Image- & sound-computable population model for AV perception -> Used simulation to model psychophysical, eye-tracking & pharmacological experiments
elifesciences.org
Correlation detection as a stimulus computable account for audiovisual perception, causal inference, and saliency maps in mammals
Optimal cue integration, Bayesian Causal Inference, spatial orienting, speech illusions and other key phenomena in audiovisual perception naturally emerge from the collective behavior of a population ...
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Amy Orsborn @neuroamyo.bsky.social · 20/10/2025
🚨Pre-print alert! 🚨https://www.biorxiv.org/content/10.1101/2025.10.17.683171v1 Our new study tackles the question: do all neurons in motor cortices (MC) encode movement & coordinate as we move? Answering this question will be key for effectively targeting motor representations in BCIs.
biorxiv.org
The spatiotemporal structure of neural activity in motor cortex during reaching
Intracortical brain-computer interfaces (BCI) leverage knowledge about neural representations to translate movement-related neural activity into actions. BCI implants have targeted broad cortical regi...
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Earl K. Miller @earlkmiller.bsky.social · 11/10/2025
Sensory reformatting for a working visual memory www.cell.com/trends/cogni... #neuroscience
cell.com
Sensory reformatting for a working visual memory
A core function of visual working memory (WM) is to sustain mental representations of recent visual inputs, thereby bridging moments of experience. This is thought to occur in part by recruiting early...
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Zach Rosenthal @zachrosenthal.bsky.social · 24/09/2025
Super proud of this collaboration with rockstar Ryan Raut - born out of playing in the sandbox in our last year of grad school! Multi-scale brain activity can be predicted from a simple measure of arousal like pupil diameter. Out with linear causality, in with dynamic systems to explain neurobiology
nature.com
Arousal as a universal embedding for spatiotemporal brain dynamics - Nature
Reframing of arousal as a latent dynamical system can reconstruct multidimensional measurements of large-scale spatiotemporal brain dynamics on the timescale of seconds in mice.
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Ben Hayden @benhayden.bsky.social · 22/09/2025
New manuscript from the lab! "Mirror manifolds: partially overlapping neural subspaces for speaking and listening" Led by superstar grad student Anilu Chavez (not on Bluesky)! www.biorxiv.org/content/10.1...
biorxiv.org
Mirror manifolds: partially overlapping neural subspaces for speaking and listening
Participants in conversations need to associate words their speakers but also retain those words general meanings. For example, someone talking about their hand is not referring to the other speakers ...
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DrBreaky @drbreaky.bsky.social · 14/09/2025
Interested in hippocampal dynamics and their interactions with cortical rhythms? Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo) www.biorxiv.org/content/10.1...
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Auditory-Visual Speech Association (AVISA) @avsp.bsky.social · 13/09/2025
Prior expectations guide multisensory integration during face-to-face communication journals.plos.org/ploscompbiol... Is there a stronger prior tendency to integrate audiovisual signals that convey the same communicative intention (& is this based on an optimal Bayesian decision)?
journals.plos.org
Prior expectations guide multisensory integration during face-to-face communication
Author summary Face-to-face communication is complex: what we say is coupled with bodily signals, offset in time, which may or may not work in concert to convey meaning. Yet, the brain rapidly determi...
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Flor Iacaruso @flor-iacaruso.bsky.social · 01/08/2025
1/N What are the organizational principles underlying crossmodal cortical connections? We address this in this new preprint, led by @alexegeaweiss.bsky.social & ‪@bturner-bridger.bsky.social‬ in collab w/ ‪@petrznam.bsky.social‬ @crick.ac.uk www.biorxiv.org/content/10.1...
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Matteo Carandini @carandinilab.net · 03/09/2025
The two key studies of the International Brain Laboratory @intlbrainlab.bsky.social are out today! A brain-wide map of neural activity during complex behaviour www.nature.com/articles/s41... Brain-wide representations of prior information in mouse decision-making www.nature.com/articles/s41...
nature.com
A brain-wide map of neural activity during complex behaviour - Nature
The International Brain Laboratory presents a brain-wide electrophysiological map obtained from pooling data from 12 laboratories that performed the same standardized perceptual decision-making task i...
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PessoaBrain @pessoabrain.bsky.social · 28/05/2025
𝗠𝗮𝘆𝗯𝗲 𝗰𝗼𝗻𝘀𝗰𝗶𝗼𝘂𝘀𝗻𝗲𝘀𝘀 𝗶𝘀 𝗮 𝗯𝗶𝗼𝗹𝗼𝗴𝗶𝗰𝗮𝗹 𝗽𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗼𝗻 𝗮𝗳𝘁𝗲𝗿 𝗮𝗹𝗹 This target paper by Anil Seth should lead to good discussion. www.cambridge.org/core/journal...
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Russ Poldrack @russpoldrack.org · 16/05/2025
If you haven't used Claude Code yet, you should - it's absolutely amazing! Yesterday I built an app that uses 4 LLM APIs (openai, anthropic, google, and together.ai) to perform an automated meta-review of a paper - using only the Claude interface, never touching code! github.com/poldrack/ai-...
github.com
GitHub - poldrack/ai-peer-review: A tool for AI-assisted meta-review of scientific papers
A tool for AI-assisted meta-review of scientific papers - poldrack/ai-peer-review
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Johannes Fahrenfort @fahrenfort.bsky.social · 02/05/2025
In @elife.bsky.social: Perceptual and attentional impairments of conscious access involve distinct neural mechanisms despite equal task performance doi.org/10.7554/eLif... by Samuel Noorman with @timostein.bsky.social and Simon van Gaal. Well done Samuel!
doi.org
Perceptual and attentional impairments of conscious access involve distinct neural mechanisms despite equal task performance
When performance is matched, the attentional blink allows for greater integration of complex stimulus features than masking, reflecting spared recurrent processing during attentional versus perceptual...
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outsidewolves 🔜 FC @outsidewolves.bsky.social · 20/04/2025
A drawing of a wolf posted on a corkboard. They are wearing a collar with a leash and carrying the leash in their mouth. Text above them reads “Do It Yourself!!”
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Kelsey Anbuhl @anbuhlk.bsky.social · 04/04/2025
Excited to share my latest work just out in @pnas.org! This NIH MOSAIC K99-funded project identifies a top-down cortical circuit—from cingulate to auditory cortex—that supports auditory perceptual performance in challenging listening conditions: www.pnas.org/doi/10.1073/...
pnas.org
The cingulate cortex facilitates auditory perception under challenging listening conditions | PNAS
We often exert greater cognitive resources (i.e., listening effort) to understand speech under challenging acoustic conditions. This mechanism can ...
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Russ Poldrack @russpoldrack.org · 01/04/2025
This is an utterly amazing paper.
transformer-circuits.pub
On the Biology of a Large Language Model
We investigate the internal mechanisms used by Claude 3.5 Haiku — Anthropic's lightweight production model — in a variety of contexts, using our circuit tracing methodology.
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Kun Dong @kundong.bsky.social · 01/04/2025
#CNS2025 Symposium Session 9 | Happening now Hosted by Aaron Kucyi kicking-off immerging cool research area in “Decoding spontaneous thought from neural activity.”
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Kun Dong @kundong.bsky.social · 01/04/2025
#CNS2025 | Just happened Poster session F Michael Angyus presented a study exploring “Does prediction error in the auditoty system have associated changes in entropy” using an auditory odd ball task. They find a correlation with entropy and MMN amplitude. pubmed.ncbi.nlm.nih.gov/31221820/
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Kun Dong @kundong.bsky.social · 30/03/2025
#CNS2025 | Just happened 🧵 coming 1/n Leo Yuhao Jin Shared exciting results about showed that 🐒 can dissociate learnable vs unlearnable pic sequences both beh and dACC. Also the correlation with beh and neural data. Ref:https://www.pnas.org/doi/full/10.1073/pnas.2202789119
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