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Ling-Qi Zhang

@lingqiz.bsky.social
359 followers 401 following 20 posts

🧠 Comp Neuro, Behavior, Theory and Machine Learning | Theory Fellow @HHMI Janelia | 💻 lingqiz.github.io

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Reposted by Ling-Qi Zhang
Jakob Voigts @jvoigts.bsky.social · 11/10/2026
How do 🐁deal with complex landscapes? Turns out they learn a lot very quickly. We think they do this by learning a set of repeated sparse paths, which form a type of compressed world model. Joint work with the Hermundstad lab, led by Tzuhsuan Ma and Alison Comrie: www.biorxiv.org/content/10.6...
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Laura Grima @lauragrima.bsky.social · 11/10/2026
Highlighting a couple of lovely behavior-focused preprints from some of the newer rodent neuro labs at Janelia: mice hunting crickets in the @emilyjanedennis.bsky.social lab (tinyurl.com/5fenwwh8) and exploring structured, complex environments in the @jvoigts.bsky.social lab (tinyurl.com/4ewsvvhw)
biorxiv.org
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Colin Bredenberg @colin-bredenberg.bsky.social · 09/10/2026
Hi all, I'm happy to announce that I have started at the University of Oregon as an assistant professor! My group will use computational methods to study learning and synaptic plasticity. I will be hiring grad students this year--please reach out if you're interested! colinbre@uoregon.edu
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Mark Histed @markhisted.org · 16/09/2026
Scientist here: It is widely known inside science that this—top-down imposition of a research agenda—leads to mostly rote, boring, non-innovative work. Building an institute to do discovery science is hard: you hire young people, put them together, hope synergies arise and ideas fall out.
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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Arthur Prat @arthurpr4t.bsky.social · 09/09/2026
We derived six laws of psychophysics from a single efficient-coding equation. The laws include Weber's law; scaling laws in visual working memory (which had been noted before, but with unclear theoretical justification); Wei & Stocker's law of human perception; arthurprat.com/pdfs/Prat-Ca...
arthurprat.com
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Laura Grima @lauragrima.bsky.social · 23/05/2026
@fluketc.bsky.social and @dudman.bsky.social have hit it out the park again. In my (perhaps biased) opinion this - along with their previous papers - is field-defining work. 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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Brad Hulse @bradkhulse.bsky.social · 21/05/2026
Story time friends... Ring attractor networks rely on fine-tuned symmetric connectivity. The fly head direction network has ring attractor dynamics but heterogeneous connectivity. How is this possible? 1/🧵 Link: www.biorxiv.org/content/10.6...
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Ling-Qi Zhang @lingqiz.bsky.social · 18/05/2026
It’s very fun to analyze other people’s data for your favorite model and theory, but data reuse actually takes a huge amount of effort. We tested if current agentic AI can help with data reuse. Conclusion: it definitely can, but requires careful human supervision. #AIforScience #compneuro #neuroAI
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Ahmed El Hady @zamakany.bsky.social · 24/04/2026
After three years of working on this review with my collaborator Emily Dennis (Janelia Farm), it is finally in press. The review provides an overview and our personal reflections on what constitutes an integrative approach to neurobiology of foraging. Enjoy www.annualreviews.org/content/jour...
annualreviews.org
Neurobiology of Foraging: An Integrative Approach
Foraging, defined as the search for food to sustain one's energetic needs, is a fundamental behavior performed by almost all animals to survive in their environment. Foraging involves a variety o...
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Ahmed El Hady @zamakany.bsky.social · 02/04/2026
After three years , this joint review with my dear friend Emily Jane Dennis is finally in press. The review provides a glimpse on what constitutes an integrative approach to neurobiology of foraging. Out in the next issue of Annual Reviews of Neuroscience. www.annualreviews.org/content/jour...
annualreviews.org
Neurobiology of Foraging: An Integrative Approach
Foraging, defined as the search for food to sustain one's energetic needs, is a fundamental behavior performed by almost all animals to survive in their environment. Foraging involves a variety o...
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Reposted by Ling-Qi Zhang
Jakob Voigts @jvoigts.bsky.social · 20/02/2026
These workshops are amazing opportunities for deep discussions on how cognition is implemented in the brain, from theory to behavior and circuits. Apply by May 7 & spread the word!
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Jakob Voigts @jvoigts.bsky.social · 13/02/2026
Applications are open for the most fun neuroscience summer school on this planet. 9/10 attendees end up with a fresh perspective on their work and being able to do previously impossible experiments. Apply & spread the word!
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Ahmed El Hady @zamakany.bsky.social · 09/01/2026
We are organizing again with @allysonsgro.bsky.social Junior Scientist workshop for theoretical biophysics at @hhmijanelia.bsky.social ,September 13 - 18, 2026. Deadline: April 16, 2026 All details here: tinyurl.com/yc66fawc
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Janelia Research Campus @hhmijanelia.bsky.social · 15/12/2025
Apply by Feb. 3 to become a Janelia Group Leader! Group Leaders drive breakthroughs & experimental approaches in imaging, molecular engineering, protein chemistry, mass spectrometry, & methods that don't yet exist. Learn more: janelia.org/groupleader 🧪
Lead a lab at Janelia

Pioneer next-generation tools for biological discovery

Apply by Feb. 3, 2026
janelia.org/groupleader
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Reposted by Ling-Qi Zhang
Ahmed El Hady @zamakany.bsky.social · 02/12/2025
Konstanz school of Collective Behavior will take place again from 20th July to 7th August , 2026. We have an amazing line up of speakers covering state of the art research on collective behavior across systems. Application deadline : March 15th Details here: www.exc.uni-konstanz.de/kscb/applica...
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Janelia Research Campus @hhmijanelia.bsky.social · 23/07/2025
🪰 A new ‘Eyemap’ developed by a team led by Arthur Zhao & @michaelreiser.bsky.social reveals how visual information detected by the fly’s eye shows up in neurons deep in the brain. Remarkably, the eye’s shape determines how flies see motion.👁️ 🔗 hhmi.news/4kSZjou
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Ling-Qi Zhang @lingqiz.bsky.social · 02/11/2025
Being a good Bayesian, I strive to maintain a posterior distribution over scientific hypotheses at all times :P
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MindCORE at the University of Pennsylvania @pennmindcore.bsky.social · 27/10/2025
Seeking applications from recent PhDs in neuro, psych, ling, philo, comp sci, or other cog sci discipline, for our MindCORE Fellowship. MindCORE is an interdisciplinary effort at Penn to understand human intelligence and behavior. Apply by Dec 1: mindcore.sas.upenn.edu/post-doctora...
a peek through fall foliage to some people at the University of Pennsylvania, photo by Eric Sucar
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Catherine (Katie) Schretter @ceschretter.bsky.social · 23/10/2025
Excited to announce our new pre-print (www.biorxiv.org/cgi/content/...)! This collaborative work (co-led by Adriane Otopalik and Gerry Rubin) examines how neuronal circuits regulate social behaviors, like courtship🫶 and aggression🥊, across sexes. #neuroscience #Drosophila #WomenInSTEM 🧪1/
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Janelia Research Campus @hhmijanelia.bsky.social · 23/10/2025
Join the team at Janelia to use #theory, computation, and modeling to tackle bold questions in #biology. Collaborate across scientific disciplines to drive discovery. Apply by Nov. 3 @ janelia.link/theoryfellowprogram #computationalbiology #sciencecareers
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Laura Grima @lauragrima.bsky.social · 07/10/2025
Pleased to have this review out in @cp-trendsneuro.bsky.social. In it we discuss various aspects of the intersection between foraging behaviors and neuroscience, and offer some future directions: www.sciencedirect.com/science/arti...
sciencedirect.com
Foraging as an ethological framework for neuroscience
The study of foraging is central to a renewed interest in naturalistic behavior in neuroscience. Applying a foraging framework grounded in behavioral …
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Ling-Qi Zhang @lingqiz.bsky.social · 15/09/2025
In this sense, the normative theory / optimization framework is less of a theory itself, but a epistemological tool to organize our knowledege about why certain "solution" exists in the brain.
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Ling-Qi Zhang @lingqiz.bsky.social · 15/09/2025
And then he wrote: "Hence, the study of the behavior of an adaptive system like the human mind is not *a logical study of optimization* but an *empirical study of the side conditions* that place limits on the approach to the optimum".
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Ling-Qi Zhang @lingqiz.bsky.social · 15/09/2025
The debate of whether the brain is optimal is the wrong one. Quoting one of my favorite writings from Herbert Simon (1992): The predictions of an optimizing theory depend as much on the postulated side conditions as on the optimization assumption. (By side conditions here, he meant constraints).
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Janelia Research Campus @hhmijanelia.bsky.social · 05/08/2025
✨ We’re #hiring Theory Fellows!✨ Janelia is recruiting early-career scientists to join our collaborative research environment and use #computation & #theory to tackle bold questions in #biology. 🔗 Apply by Nov. 3 👉 janelia.link/theoryfellow... @hhmi.org
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Janelia Research Campus @hhmijanelia.bsky.social · 26/08/2025
📢We're #hiring Group Leaders! Apply to lead a lab at Janelia & advance biology using theory, computational modeling & machine learning. 🔹5-year renewable appointment 🔹Pioneer new tools & approaches 🔹Collaborate across disciplines Apply by Nov. 4👉 janelia.link/groupleader
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lastpositivist.bsky.social @lastpositivist.bsky.social · 10/08/2025
Bayesians in shambles
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Janelia Research Campus @hhmijanelia.bsky.social · 09/07/2025
📢 Students & postdocs in #TheoreticalNeuroscience 👉 Join us this November for a "by the students, for the students" workshop featuring whiteboard-style tutorials, in-depth discussions, and research talks. ✈️ Travel, lodging & registration covered Apply by Aug. 5 @ janelia.news/THE25
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Huxley @huxleymorgan.bsky.social · 22/06/2025
Black and white image of Iranian author Marjane Satrapi, smoking a cigarette. "The world is not divided between east and west. You are American, I am Iranian, we don't know each other, but we talk and we understand each other perfectly. The difference between you and your government is much bigger than the difference between you and me. And the difference between me and my government is much bigger than the difference between me and you. And our governments are very much the same."
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Florentin Guth @florentinguth.bsky.social · 06/06/2025
What is the probability of an image? What do the highest and lowest probability images look like? Do natural images lie on a low-dimensional manifold? In a new preprint with Zahra Kadkhodaie and @eerosim.bsky.social, we develop a novel energy-based model in order to answer these questions: 🧵
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Ling-Qi Zhang @lingqiz.bsky.social · 25/04/2025
Thanks!! There are no major changes in the main text re results. We did refine the vignetting analysis, but it didn't make a huge difference in the end results. We also added a polar ROI analysis in the supplement, complementary to the eccentricity ROI in Fig. 5.
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Jean-Paul Noel @jpnoel.bsky.social · 24/04/2025
Very excited to be part of this. Huge thank you to the @simonsfoundation.org for their support and vision. www.simonsfoundation.org/2025/04/24/s... Also, job openings in this context! Please apply and forward to anyone who may be interested! hr.myu.umn.edu/jobs/ext/367...
simonsfoundation.org
Simons Foundation Launches Collaboration on Ecological Neuroscience
Simons Foundation Launches Collaboration on Ecological Neuroscience on Simons Foundation
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
Thanks Megan!!
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
Same here!!
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
And I'm very excited to see how this theoretical framework (the original credit goes to www.nature.com/articles/nrn...) might explain many other illusions (e.g., motion aftereffect) in a principled way! (6/6)
nature.com
Space and time in visual context - Nature Reviews Neuroscience
Sensory stimuli are interpreted in light of their spatial and temporal context, which can sometimes lead to visual illusions. Schwartz, Hsu and Dayan consider the possible functional benefits of conte...
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
Lastly, our results, together with some recent work such as journals.plos.org/ploscompbiol... and www.biorxiv.org/content/10.1... @mariodipoppa.bsky.social, are painting a compelling picture of how contextual effects (both spatial and temporal) can be interpreted as adaptive efficient coding. (5/6)
journals.plos.org
Adaptation optimizes sensory encoding for future stimuli
Author summary Prolonged exposure to a fixed stimulus causes sensory neurons to adapt. In this study, we uncover some of the functional benefits of adaptation for the visual system. We first quantifie...
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
In addition, the change in encoding is sufficient to predict the behavioral characteristics of the tilt illusion using a Bayesian observer model. (4/6)
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
With an oriented surround, encoding precision is locally increased for stimuli similar to the surround orientation, specifically in higher areas of the visual cortex. This encoding change also reflects the surround-conditioned orientation statistics in natural scene. (3/6)
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
We measured sensory encoding precision (in terms of Fisher information) from both behavioral and neural data in an orientation estimation task. At baseline, encoding reflects the natural scene statistics of orientation. (We observe the cardinal bias in different parts of the visual cortex!). (2/6)
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Ling-Qi Zhang @lingqiz.bsky.social · 24/04/2025
Very happy to see our work finally in print! www.pnas.org/doi/10.1073/... TLDR: Tilt illusion is not a bug, but a feature of a well-designed visual system that maximizes information capacity adaptively based on spatial context. (1/6)
pnas.org
The tilt illusion arises from an efficient reallocation of neural coding resources at the contextual boundary | PNAS
The tilt illusion—a bias in the perceived orientation of a center stimulus induced by an oriented surround—illustrates how context shapes visual pe...
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Ling-Qi Zhang @lingqiz.bsky.social · 23/04/2025
many many tiny contextual boundaries!
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Ling-Qi Zhang @lingqiz.bsky.social · 23/04/2025
And 2) If we can create a surround that REALLY modulates the representation at the boundary, we might be able to break the segmentation cue, and see an illusion as you suggested. This will require an image synthesis method for surround modulation, but people are working on this type of idea!
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Ling-Qi Zhang @lingqiz.bsky.social · 23/04/2025
This does lead to some "really cool if true" predictions: 1) If we gradually increase the grey center aperture, the illusion strength should first increase (as we are removing orientation information not modulated by the surround), and then decrease (once we are in the "center-surround" boundary).
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Ling-Qi Zhang @lingqiz.bsky.social · 23/04/2025
Great question! My explanation would be that there are strong enough segmentation cues in the stimulus for the visual system to integrate the orientation information across the center, to form a holistic orientation estimate.
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Jan Funke @janfunkey.bsky.social · 18/04/2025
How can AI help you to analyze your microscopy images? Find out at the "Machine Learning for Microscopy Image Analysis" course at the @mblscience.bsky.social in Woods Hole from Aug 22-Sep 6! Applications are due 🚨 April 30 🚨 Read on for more! 👇 www.mbl.edu/education/ad...
mbl.edu
AI@MBL: Machine Learning for Microscopy Image Analysis | Marine Biological Laboratory
The goal of this course is to familiarize researchers in the life sciences with state-of-the-art deep learning techniques for microscopy image analysis and to introduce them to tools and frameworks th...
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Sam Wang @samwang.bsky.social · 24/03/2025
Here at Princeton, we’re amplifying our university president’s leadership. It’s time for everyone - faculty, students, staff - to speak out. tl;dr: rights can’t be blackmailed. From me and science colleagues: www.dailyprincetonian.com/article/2025...
dailyprincetonian.com
To stop intimidation, Eisgruber needs your help
When targeting one institution is a bald attempt to divide and conquer, as is the case with Columbia, it is essential for a coalition or group of institutions and individuals to stand up together.&nbs...
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AAUP @aaup.org · 22/03/2025
Columbia University has failed to defend academic freedom & freedom of speech & allowed a great institution to be bullied & extorted into submission by an administration hellbent on contorting higher education to their will. The AAUP condemns this capitulation. We can & must fight back.
nytimes.com
Columbia Concedes to Trump’s Demands After Federal Funds Are Stripped
The administration has moved to cut $400 million in federal funding to the university without changes to its policies and rules.
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Ellen Pao @ekp.bsky.social · 22/03/2025
"And I think once you make concessions once, it's hard not to make them again." Princeton President Chris Eisgruber's warning to universities applies to law firms, companies, foundations, nonprofits, and more. www.pbs.org/newshour/sho...
pbs.org
Using funding to 'force concessions' threatens institutions, Princeton president says
Columbia University agreed to comply with a series of demands from the Trump administration about how it will handle protests, antisemitism and academic departments. The university faced a deadline to...
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David Noll @david.noll.org · 08/03/2025
Pro-tip for university administrators: when the government illegally cancels your grants, your first response shouldn't be "you kind of have a point."
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