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Jennifer Bussell PhD

@jenbussell.bsky.social
2.6K followers 2.1K following 90 posts

Neuroscientist studying information seeking and curiosity via mouse models at Columbia University. Previously at Vosshall Lab at Rockefeller University. Mom in Brooklyn, former S Carolinian www.jenniferbussell.org

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Reposted by Jennifer Bussell PhD
Francesco Poli @francescopoli.bsky.social · 02/10/2026
So excited to share that I will be starting my research group at the Max Planck Institute for Evolutionary Anthropology! 🥳 My lab will study curiosity and exploration across biological (and artificial) minds. I will recruit a PhD, a postdoc and an RA in the coming months, so please spread the word!
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Ben Hayden @benhayden.bsky.social · 02/10/2026
New paper from the Neurosurgery research team at BCM! 🧵 "A population code for semantics in human hippocampus" led by Melissa Franch. We recorded hippocampus single neurons while people listened to podcasts. www.nature.com/articles/s41...
nature.com
A population code for semantics in human hippocampus - Nature Neuroscience
Franch et al. show that human hippocampal neurons encode the meanings of the words we hear through distributed, context-sensitive population activity that mirrors some features of large language model...
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Neuron @cp-neuron.bsky.social · 02/10/2026
dlvr.it
Circuit mechanisms of psychotic symptoms across disorders
In this review, Braun et al. propose that psychotic symptoms across psychiatric and neurological disorders arise from disturbances in neuromodulatory systems that alter neural gain and precision weighting, destabilizing cortico-striato-thalamo-cortical circuits and large-scale brain networks, offering a transdiagnostic, testable framework for future research.
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Leah Houri-Zeevi @leahhouri.bsky.social · 25/09/2026
🩸🩸🩸TODAY WE SHARE TWO MAJOR DISCOVERIES🩸🩸🩸 1. We peered into genomes and brains of the rare mosquitoes that QUIT feeding on blood and found what biting is built from 2. Humans got rid of isoleucine in their blood, malaria suffers from it, and mosquito proteomes budget for it THREADS>
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Matt Lovett-Barron @mlovettbarron.bsky.social · 23/09/2026
Our lab's latest paper on the neurobiology of collective behavior is now published www.nature.com/articles/s41... This is the work of a great team in the lab - led by Jo-Hsien Yu, with Geoff Meyerhof, Jimjohn Milan, and Julia Napoli @nature.com @danionella.bsky.social
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Jennifer Bussell PhD @jenbussell.bsky.social · 23/09/2026
Great discussion in the replies as well as two exciting new studies!
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Andrej Bicanski @andrejbicanski.bsky.social · 22/09/2026
Now accepted and published --- with many thanks to the referees for helping sharpen the manuscript. Long time since the first notes. Good to see it officially out. www.cell.com/current-biol...
cell.com
A vector navigation and inference architecture can construct universal cognitive maps for abstract reasoning
Bicanski proposes an algorithm and neural mechanisms for the iterative construction of abstract cognitive maps via non-local inference. Map positions are triangulated and memorized by a set of extant ...
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Jeff Greene @jeffgreene.bsky.social · 21/09/2026
This review of developmental aspects of self-regulated learning is much-needed and welcome. I share the authors' concern that any apparent drop in SRL strategy use in adolescence is very likely due to measurement issues. We need better SRL measurement in longitudinal designs. doi.org/10.1016/j.le...
Screenshot of the title page of an article published in the journal "Learning and Instruction" titled "A systematic review on the development of self-regulated learning."
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Cheng Xue @cxue.bsky.social · 15/09/2026
Our work recently online in Nature Neuroscience: a neural reason why we err more when juggling tasks nature.com/articles/s41593-026-02430-w 🧵 Switching between tasks for different goals is an important form of cognitive flexibility.
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 18/09/2026
Median raphe input to dorsal CA1 shapes VIP interneuron recruitment and novelty-guided spatial memory www.biorxiv.org/content/10.64898/20…
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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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Guillaume Lajoie @glajoie.bsky.social · 15/09/2026
In brain-computer interfacing, clever and adaptive decoders help brains learn complex tasks faster. These can impact the nature of solutions learned by the brain. Our new paper is one of the first attempts to study this effect. W/ @neuroamyo.bsky.social and team www.nature.com/articles/s41...
nature.com
Assistive algorithms influence neural representations in motor brain-computer interfaces - Nature Communications
Assistive algorithms are widely used in brain-computer interfaces (BCIs), but their effects on neural representations remain unclear. Here, the authors show that adaptive BCIs lead the brain to learn ...
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Steve Flack @vitaminsteve.com · 15/09/2026
"A man wearing a black-and-red bandana was seen climbing out of a sewer in Queens, with him and four other men taking off after putting the manhole back in place" dude thats not a man, thats a turtle
nydailynews.com
Man spotted emerging from manhole in Queens amid rash of underground mysteries across NYC
Officers were sent to Juniper Blvd. S. and 74th St. in Middle Village after someone called 911 at 4:04 a.m. Sunday to report the incident.
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Reposted by Jennifer Bussell PhD
mahwishkittur.bsky.social @mahwishkittur.bsky.social · 10/09/2026
After years of analyzing thousands of drawings from hundreds of adults and children, I am excited to share my first ever paper (w/ @samiyousif.bsky.social )! Using a simple drawing task, we show how topological structure is represented in the mind and its importance in spatial memory.
elifesciences.org
Topological structure in human spatial representation revealed through drawing
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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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Yasmine El-Shamayleh @elshamayleh.bsky.social · 26/08/2026
Excited to share the lab’s first publication, co-led by talented postdoc Chuyi Su @chuyisu.bsky.social We leveraged cell type-specific optogenetics in the macaque cerebral cortex to elucidate the role of excitatory and inhibitory neurons in visual form processing. www.nature.com/articles/s41...
nature.com
Optotagging in primate cortex uncovers excitatory and inhibitory neuron specializations in form vision - Nature Communications
This study leverages cell type-specific optogenetics in the monkey cerebral cortex to elucidate the unique functional contributions of excitatory and inhibitory neurons in visual form processing. The ...
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Catherine Dulac @dulaclab.bsky.social · 26/08/2026
Finally out: a very cool study by @jenbussell.bsky.social from the Axel lab--summarized here by @thetransmitter.bsky.social-- on the urge to know in mice, even without any immediate benefit for the animal
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Dayu Lin @moccalin.bsky.social · 26/08/2026
Happy to share our new study comparing aggression level across 7 strains of mice, led by a talented undergraduate student, Xiuzhi Dai. Strain differences in aggression can be explained a lot by differences in the physiological properties of VMHvl cells. www.nature.com/articles/s41...
nature.com
Hypothalamic representation of aggressiveness across mouse strains - Nature Communications
Genetics profoundly influences aggression by shaping neural circuits, but the underlying mechanisms remain unclear. Here, authors show that strain differences in male mouse aggression are linked to di...
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Chris Person @papapishu.bsky.social · 22/08/2026
Riley did a very good blog about this as a Library Science nerd that’s worth reading aftermath.site/google-searc...
And in this presumption, Google tries to narrow and direct my search behavior in a way that infuriates me as a library science nerd. No database is neutral, but they generally tend to stay out of your way. When you go to your local library catalogue, your desires (and your skill at using a particular repository) are what move you through, not the library catalogue nudging you toward what it thinks you should be searching for.
Google, uninvited, attempts to steer me down the path it boldly presumes I mean to go, in the process inherently attempting to limit the information I encounter by pushing me toward itself instead of actual results.
Google has always done this with its opaque and changing priorities, but that priority has changed from making websites conform to its whims to trying to force me to conform to its obsession with Al.
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Dr Abeba Birhane @abeba.blacksky.app · 19/08/2026
i don’t want “accelerated”, “increased-speed” or “fast-paced” research. in fact, am not interested in any shortcuts to mindful, intentional, and slow science
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Camillo Padoa-Schioppa @camillopadoasch.bsky.social · 25/08/2026
New ms! During choice behavior, OFC neurons encode decision input and output, suggesting the presence of a neural decision circuit within this area. Computational models support the hypothesis, but little is known about actual – or at least functional – connectivity in OFC.
biorxiv.org
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Karolina Heyduk @kheyduk.bsky.social · 24/08/2026
New NSF BIO solicitation says expected number of awards is 250-300. Historically, the number of awards is closer to 800-1000 for the Directorate of Bio Sciences: grantwitness.org/nsf/analyses... Unless I'm missing large, non-core programs, this seems really not good?
grantwitness.org
Agency Pulse: Grantmaking at NSF
An independent, up-to-date, grant-level record of federal science funding disruptions in the United States.
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Admirable Women @admirablewomen.bsky.social · 24/08/2026
Microbiologist Elizabeth Hazen (b. #OTD 1885) & chemist Rachel Brown were granted a patent for Nystatin, an anti-fungal med in 1957. In 2016, it was the 217th most prescribed medication in the US w/ >2MM prescriptions. They gave all $13.4MM in royalties to a fund that heavily supported #WomenInSTEM
A black-and-white photograph of microbiologist Elizabeth Hazen (1885–1975) and chemist Rachel Fuller Brown (1898–1980), the pioneering duo who discovered the first safe antifungal antibiotic, nystatin. On the left, Hazen sits attentively in a white lab coat over a dark-colored vest andlight shirt. She is looking directly at Brown. Standing on the right, Brown looks intently at Hazen while gesturing with chemical glassware. She wears a white lab coat over a light blouse, her silver hair styled neatly. The lab table is filled with scientific equipment, including a glass Erlenmeyer flask, a specialized tube setup, and a rack brimming with cotton-plugged test tubes. The mid-century laboratory background features white storage cabinets with glass windows revealing stacked beakers, alongside an outdoor window framing dark foliage. The composition emphasizes their collaboration, casting a focused light on their work to evoke a mood of serious, dedicated discovery and monumental historical significance in STEM.
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Taylor Chamberlain @tchamberlain.bsky.social · 19/08/2026
Sometimes we know an experience is important in the moment. Other times, its importance only becomes clear after the fact. Do these two cases have different consequences for memory? In our new paper we found that both kinds of prioritization impact memory in different ways! doi.org/10.1162/OPMI...
doi.org
Prioritizing Detailed Item Memories Through Post-Encoding Motivation Requires Consolidation
Abstract. Prioritizing memories that are motivationally salient is adaptive for goal-directed behavior, ensuring that information being retained is the most relevant to future goals. Past research dem...
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Tatiana Engel @engeltatiana.bsky.social · 19/08/2026
Difficult decisions take time, but can we keep all accumulated evidence in mind long enough to make better choices? We find that working-memory limitations constrain decision-making, and these effects are modulated by dopamine. biorxiv.org/content/10.6... bioRxiv out with Cina Aghamohammadi et al.
biorxiv.org
Working memory limitations and dopamine modulation in probabilistic reasoning
Difficult decisions require gathering evidence over extended periods, placing demands on working memory. Yet, how working memory limitations affect decision-making remains largely unknown. We trained ...
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Herbert Wu @herbertwu.bsky.social · 20/08/2026
These findings reveal how leader–follower dynamics are instantiated as asymmetric prefrontal representations, linking role-based decision-making to egocentric partner encoding at the cellular resolution. (2/3)
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Herbert Wu @herbertwu.bsky.social · 20/08/2026
First study out! Using a new cooperative paradigm and multi-agent inverse RL, we show that mice spontaneously adopt leader/follower roles, and the prefrontal cortex encodes these role dynamics and an egocentric social value map of the partner’s position. (1/3) www.nature.com/articles/s41...
nature.com
Asymmetric prefrontal representations for leader–follower dynamics - Nature
Mice spontaneously form leader and follower roles during cooperation, and the medial prefrontal cortex encodes these role dynamics and an egocentric social value map of the partner’s position.
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Ida Momennejad @neuroai.bsky.social · 19/08/2026
📣Algorithmic Grammar of Flexible Cognition: A Walk through Latent Operations osf.io/preprints/ps... Flexible behavior moves adaptively btwn cognitive modes. But units of analysis remain representations & few operations. Proposal: formalize open-ended cognition as walk over latent operations 1/n
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Gretchen McCulloch @gretchenmcculloch.com · 20/08/2026
they've done the bouba/kiki test on chocolate shapes now, i love linguistics
medium.com
Research Investigating the Relationship between Shape and Taste of Chocolate Pieces Printed by a 3D…
This is Shigeo YOSHIDA, a Senior Researcher at OMRON SINIC X (OSX).
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Sam Gershman @gershbrain.bsky.social · 18/08/2026
@arthurpr4t.bsky.social has a new preprint with important results on a famous psychophysical law (Weber's law). It isn't, in fact, a law, because it can be broken. A more fundamental principle (efficient coding) shows when and why Weber's law holds true. www.biorxiv.org/content/10.6...
biorxiv.org
Efficient coding makes and breaks Weber's law
Weber's law is a rare quantitative regularity in psychology, yet its origins remain debated. Here we provide causal evidence that it arises from the more fundamental principle of efficient coding. Thi...
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Cian O'Donnell @cianodonnell.bsky.social · 13/08/2026
I gave a talk in our ISRC CN3 summer school yesterday on computational modelling of learning and memory, at the end I threw in a list of what I consider the big open questions in the the theory of learning in neural circuits. What did I miss??
Slide with title text "Open directions in theory of learning in neural circuits". List of points:
- Does the brain learn by gradient descent? If so, how?
- How are memories stable if synaptic strengths − and brain representations − fluctuate over time?
- How do brains learn continually over a lifetime?
- How do brains learn so efficiently? (In terms of energy, data, wiring constraints)
- Why are synapses so molecularly complex, compared to ANN weights?
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Laura Driscoll @lndriscoll.bsky.social · 08/08/2026
Confused about all this talk of compositionality in neuroscience? Read our new perspective www.nature.com/articles/s41... with authors Reidar Riveland and Alex Pouget.
nature.com
The compositionality continuum as a principle for studying the neural basis of intelligence - Nature Neuroscience
Compositionality exists on a continuum of increasing complexity rather than as a binary trait. Studying its implementation in simpler biological and artificial systems is the most tractable path towar...
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Charley Wu @thecharleywu.bsky.social · 05/08/2026
🚨Now out in Science Advances @science.org: #Parkinson's patients off dopamine medication (PD-) explore too much and exploit too little. Modeling shows they overvalue uncertainty, not that they choose randomly. On levodopa (PD+) they become comparable to controls www.science.org/doi/10.1126/... 🧵👇
science.org
Dopamine depletion in Parkinson’s increases directed but not random exploration
Levodopa restores the balance between exploration and exploitation in Parkinson’s disease.
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Timothy O'Leary @timothyoleary.bsky.social · 07/08/2026
This is very solid work. It prompts a question I have never had a satisfying answer for: why do people want to infer spikes from calcium imaging data? The calcium signal contains sufficient information for *any* inference procedure, and none of the bias. Why don't people work directly with calcium?
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Lorenzo Posani @lorenzoposani.com · 06/08/2026
For a neural circuit to be "specialized", does it need specialized neurons? In our new work - now out in @NatureNeuro - we address this question in the BLA, using representational geometry to propose a new population-centric way of defining circuit specialization. 🧵👇 1/
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Columbia University's Zuckerman Institute @zuckermanbrain.bsky.social · 30/07/2026
Where does curiosity come from? Neuroscientist @jenbussell.bsky.social wants to know. She found that mice, like us, seek information with no external benefit. Her new Nature Neuroscience research links this desire for knowledge to cells in the brain's orbitofrontal cortex. See tinyurl.com/3xjt8e5c
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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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Micah G. Allen @micahgallen.com · 29/07/2026
After a long break, I’m back to long-form blogging! The first population atlas of the human vagus gives us an extraordinary wiring map. But what do the wires actually do? I connect it to new mouse psychophysics, organ-targeted ultrasound and our human findings. www.the-ecg.org/2026/07/29/v...
the-ecg.org
The vagus has a map. Interoception still needs a model.
The first population-level atlas of the human vagus nerve has arrived. But a map of the wiring does not tell you what the wires are saying -- on va...
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Reza Shadmehr @rezashadmehr.bsky.social · 28/07/2026
If an action results in error, each neuron requires an individualized teaching signal that guides change in its output. This is the credit assignment problem of learning. Are there neurons in the brain that can compute such a sophisticated teaching signal? Yes. www.biorxiv.org/content/10.6...
biorxiv.org
Climbing fibers encode the gradient of a loss function for the cerebellum
Neurons in the brain are often many synapses away from motoneurons, yet if a movement results in error, each distant neuron needs a teacher that considers its specific contribution to production of th...
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Bertoglio lab (FMC/UFSC) @bertogliolab.bsky.social · 24/07/2026
Cellular mechanisms of serotonergic psychedelics - apical hypercontextualisation www.sciencedirect.com/science/arti...
sciencedirect.com
Cellular mechanisms of serotonergic psychedelics - apical hypercontextualisation
Classical serotonergic psychedelics primarily exert their profound effects through agonism at the serotonin 2A (5-HT2A) receptor, which is abundantly …
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Tressie McMillan Cottom @tressiemcphd.bsky.social · 23/07/2026
It was a big deal for my identity when I finally developed the confidence to write in a book. It felt like a taboo, a special privilege for Real, Serious Thinkers. Every time I do it now it’s a tiny reminder that I can engage with any thinker, anywhere, across time and space.
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Earl K. Miller @earlkmiller.bsky.social · 21/07/2026
“We humans tend to overestimate how special we are” www.nytimes.com/2026/07/21/s...
nytimes.com
Monkeys Understand Shapes in Almost the Same Way as Humans (Gift Article)
Our geometric intuition, long considered something that sets us apart, seems to be shared with other primates.
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Sam Gershman @gershbrain.bsky.social · 19/07/2026
This is a really interesting and important study: www.nature.com/articles/s41... However, isn't it concerning that sweeping conclusions about functional organization of cortex are being reached on the basis of a single task?
nature.com
Rarely categorical, highly separable representations along the cortical hierarchy - Nature
Cortical circuits prioritize diversity over categorical structure, supporting a computational regime geared towards high-dimensional, highly separable neural representations.
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Cognition @cognitionjournal.bsky.social · 08/07/2026
How do people build new ideas from existing knowledge? By tracking Wikipedia searches, we found that novel ideas emerged when people balanced exploration with exploitation—alternating between distant topics and deep dives into related information.
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 09/07/2026
Stars2Cells: Astrometric Tracking of Neurons Across Imaging Sessions www.biorxiv.org/content/10.64898/20…
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Gayathri Ramesan @gayathri-ramesan.bsky.social · 06/07/2026
Is organization close to saddle-node bifurcations a generic principle underlying neural computations? 🧠 To know more, give a read to our recent effort in this regard👀
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Jo Cutler @drjocutler.bsky.social · 05/07/2026
🌟 Research Assistant opportunity 🌟 I'm looking for an RA to support research at The Centre for Human Brain Health (CHBH) on social information seeking and decision making, including fMRI and MEG 🧠 tinyurl.com/uob-chbh-ra Deadline: 19th July, 23:59 UK time ⏳ Start: 7th September 🗓️ Please share 🔁
tinyurl.com
Research Associate - School of Psychology - 104433 - Grade 6
We welcome applications for a Research Associate / Lab Manager in the Centre for Human Brain Health (CHBH). The CHBH is a friendly, productive, and supportive environment where all colleagues can thri...
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Alon Baram @alonbaram.bsky.social · 29/06/2026
How does the human brain extract abstract structure from experience? We show that sensory-independent relational representations emerge in mPFC over several days. Work with @mgarvert.bsky.social and @behrenstimb.bsky.social now out in @currentbiology.bsky.social: www.cell.com/current-biol...
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Earl K. Miller @earlkmiller.bsky.social · 26/06/2026
Dimensionality reduction is how the brain acquires knowledge. Cool new paper from the late, great, Mark Stokes. www.nature.com/articles/s41... #neuroscience
nature.com
Learning shapes neural geometry in the primate prefrontal cortex - Nature Neuroscience
Learning transforms prefrontal cortex activity from flexible, high-dimensional representations into compact, task-relevant and abstract codes, enabling efficient generalization of learned rules to new...
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Shervin Safavi @neuroprinciplist.bsky.social · 09/06/2026
1/11 Happy to share our TICS paper on using the flexibility of one of the most basic cognitive functions, perception, to understand one of the most complex cognitive dysfunctions, psychiatric conditions (also my first formal work in computational psychiatry 🎉) 📄: www.cell.com/trends/cogni... 🧵 : 👇
cell.com
Perceptual multistability: a multifaceted window into brain dysfunctions
Perceptual multistability, observed across species and sensory modalities, offers valuable insights into numerous cognitive functions and dysfunctions. For instance, differences in temporal dynamics a...
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