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Martin Haesemeyer

@haesemeyerlab.bsky.social
879 followers 346 following 452 posts

Neuroscientist - my lab studies circuits of thermoregulatory behaviors using the humble zebrafish as a model. www.thermofish.org soundcloud.com/toramonki

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Reposted by Martin Haesemeyer
David G. Clark @david-g-clark.bsky.social · 01/10/2026
📣 Multiple Flatiron Research Fellow (FRF) postdoc positions are available in my @flatironinstitute.org group! We've never been better positioned to understand how high-dimensional nonlinear dynamical systems (neural circuits!) compute. If this is as exciting to you as it is to me, consider applying:
apply.interfolio.com
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Andrew Pruszynski @andpru.bsky.social · 01/10/2026
Happy to announce that I am searching for for a graduate student, starting Fall 2027. If you want to study the neural mechanisms of reaching and grasping, come join us in the rich environment of the Sensorimotor Superlab. For details: www.pruszynskilab.com/positions.html
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Martin Haesemeyer @haesemeyerlab.bsky.social · 01/10/2026
CLOK: Truly beautiful new #zebrafish tool for birthdating neurons from the Koyama and Del Bene labs doi.org/10.1038/s415...
doi.org
CLOK: a chemigenetic multicolor labeling system to visualize neuronal birthdate and circuit integration - Nature Neuroscience
Faini et al. develop CLOK, a method that labels neurons across a spectrum of colors according to when they were born, allowing successive generations of brain cells to be tracked as they take shape in...
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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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Laura R Cortes @prefrontalcortes.bsky.social · 22/09/2026
My postdoc work at @uclacollege.bsky.social in the #CorreaLab is now published at @pnas.org! 🙌 Our broad question was - do estrogens act on the brain to coordinate thermoregulatory adaptations during pregnancy? 1/8
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Rainer Friedrich @rainerfriedrichlab.bsky.social · 10/09/2026
Just out in Nat Neurosci: disentangling of neural odor manifolds in "olfactory cortex" of adult zebrafish after learning. Great work by Bo, Nesibe et al and wonderful collaboration with @sueyeonchung.bsky.social that fundamentally changed my view of olfactory cortex. www.nature.com/articles/s41...
rdcu.be
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Andrew Straw @andrewstraw.bsky.social · 04/09/2026
We are hiring! Come join us in the Straw Lab at the @biologyunifreiburg.bsky.social . Seeking a scientist to work on the neural and computational mechanisms of visual navigation in honey bees. uni-freiburg.de/en/job/00005...
Bee trajectories in agricultural landscape and two photon microscope for in-vivo calcium activity imaging.
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Jieyu Zheng @jieyusz.bsky.social · 04/09/2026
How fast can mice learn complex mazes? With @mameister4.bsky.social we reveal memory, generalization, latent learning, and remote credit assignment of mice in the Manhattan Maze. Do mice born without a cortex or hippocampus have them too? Check it out! www.biorxiv.org/content/10.6...
biorxiv.org
Rapid spatial cognition in mice, with and without neocortex and hippocampus
Rapid learning, memory, and generalization are often attributed to circuits of the neocortex and hippocampus, but their specific role remains unclear. To examine these cognitive abilities together in ...
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Sonya Neal @neal-lab.bsky.social · 02/09/2026
Come be my colleague!! 🎉 We’re hiring an Assistant Professor in Developmental Biology at UCSD! If you’re doing exciting work in development or regeneration, come join us!! Please spread the word and apply! apol-recruit.ucsd.edu/JPF04591
apol-recruit.ucsd.edu
Assistant Professor of Developmental Biology
University of California, San Diego is hiring. Apply now!
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Alex Schier @schierlab.bsky.social · 19/08/2026
What regulates the urge to sleep? William Joo and colleagues identified brain regions that reflect how long mice have been awake. Strikingly, inhibiting one of these regions reduces sleep by 70%, without the major behavioral deficits associated with sleep deprivation. www.nature.com/articles/s41...
nature.com
Wake-activated neuronal populations that regulate sleep drive - Nature
Whole-brain activity mapping, targeted cell manipulations and electrophysiology in mice identify wake-activated neuronal populations that are crucial for sleep drive and can persistently red...
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Maxwell Shafer @maxshafer.bsky.social · 14/08/2026
Do you have trouble sleeping when away from home or your partner and family? In our latest, we find that shells 🐚🏠 (homes) and conspecifics 🐟❤️ (family) control (or mask) circadian rhythms in shell dwelling cichlid fish: www.biorxiv.org/content/10.6...
static.klipy.com
Callipterus Cichlid Collecting Shell
Alt: Callipterus Cichlid Collecting Shell
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Zebrafish Rock! @zebrafishrock.bsky.social · 27/07/2026
Happy #SharkWeek! Did you know zebrafish are more closely related to zebras than they are to zebra sharks? 🐟🦓🦈 🤯 Credit diagram to Tyler Greenfield (X/@TylerGreenfieId) #ZebrafishFunFacts 🧪
Phylogenetics tree showing the relationship between zebras, zebrafish and zebra sharks. Sharks are part of the cartilagenous fishes, which are more distantly related to bony fishes, which contain ray-finned fishes (zebrafish) and lobe-finned fishes (Zebra)
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Andrew Pruszynski @andpru.bsky.social · 27/07/2026
We're hiring! Postdoc position to study the neural control of reaching using high-density multi-area electrophysiology. 5 years of funding, great collaborative environment. Please share with anyone who may be interested. For details, see: docs.google.com/document/d/1...
docs.google.com
Pruszynski Postdoc 2026
Postdoctoral Researcher, Control Policies in the Primate Motor Circuit Pruszynski Lab @ Sensorimotor Superlab​ The Pruszynski Laboratory at Western University is seeking a postdoctoral researcher to j...
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Neuroskeptic @neuroskeptic.bsky.social · 24/07/2026
"Replay occurs in the dorsal striatum during offline consolidation of a procedural memory in mice" - even with total hippocampal lesions pubmed.ncbi.nlm.nih.gov/42493550/ It looks like memory replay is a general capability of the brain - not a special feature of the hippocampus!
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Martin Haesemeyer @haesemeyerlab.bsky.social · 20/07/2026
Proud to report that an image from my student @yesthatlindsay.bsky.social has been selected as a finalist for this year's BRAIN initiative conference photo and video contest - hint: It involves #zebrafish neurons. Cast your vote for all the awesome entries here: forms.cloud.microsoft/Pages/Respon...
forms.cloud.microsoft
Microsoft Forms
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Alex Schier @schierlab.bsky.social · 17/06/2026
Might cerebellar disinhibition underlie Restless Legs Syndrome symptoms? Will Joo found that loss of the RLS-associated gene meis1b perturbs locomotion in zebrafish by disinhibiting cerebellar output. www.sciencedirect.com/science/arti...
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Zebrafish Rock! @zebrafishrock.bsky.social · 09/06/2026
Wonderful opportunity in Vienna 🐟 #ZebrafishJobs 🔗: ccri.at/working-at-t...
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Martin Haesemeyer @haesemeyerlab.bsky.social · 05/06/2026
NoA day! Grateful and excited to report that our research will continue to be supported by an R01 from NINDS.
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James Gagnon @james-gagnon.bsky.social · 28/05/2026
Excited to share the published version of MIC-Drop-seq @natcomms.nature.com! Shoutout to co-lead authors @claycarey.bsky.social @sparvez.bsky.social for driving this work. Excited to see where this new scale of single-cell perturbation screening goes next. www.nature.com/articles/s41...
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Martin Haesemeyer @haesemeyerlab.bsky.social · 24/05/2026
Happy Memorial day weekend on.soundcloud.com/mOZeHeDx9uMx...
soundcloud.com
Clearing
But how clear is it really?
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James Gagnon @james-gagnon.bsky.social · 22/05/2026
Support a great cause. Spread the shrimp gospel. Everyone wins.
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Aaron Fisher @aaronjfisher.bsky.social · 20/05/2026
We just got approved to hire a teaching professor in Quantitative Methods! This is the *very* rare tenure track teaching position at Berkeley. I'll be chairing the search committee. Official job ad coming later this summer!
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Andrew Leifer @andrewleifer.bsky.social · 18/05/2026
We're hiring a postdoc to develop and use custom optical instruments for measuring and manipulating neural activity in worms and flies. Please apply via interfolio: apply.interfolio.com/186001
apply.interfolio.com
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MwahahahahahadScientist @mads100tist.bsky.social · 15/05/2026
At some point we have forgotten that there must be a social contract and we as reviewers, readers and colleagues expect a bare minimum, default of truthfulness, correctness and collegiality. Otherwise, we're not doing science anymore 🧪
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Katherine W. Rogers @katwrog.bsky.social · 13/05/2026
New preprint from my lab! Will Anderson developed a transgenic #zebrafish ubiquitously expressing an optogenetic FGF/ERK activator. We're having a lot of fun with it and think you will too! www.biorxiv.org/content/10.6...
biorxiv.org
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Martin Haesemeyer @haesemeyerlab.bsky.social · 13/05/2026
New preprint from the lab, led by Bradley Cutler. With the @james-gagnon.bsky.social lab we use zebrafish to show that fever is not a reduction in the perception of warmth. Immune signals instead increase the valence of warming stimuli while cooling turns aversive. www.biorxiv.org/content/10.6...
Conceptual model of how PGE2 signaling alters temperature encoding in medullary circuits to change the valence of heating and cooling stimuli.
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megan peters 🧠 @meganakpeters.bsky.social · 28/04/2026
bump for visibility!
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Salil Bidaye @salilbidaye.bsky.social · 04/05/2026
Here’s our latest preprint on uncovering neural control of a coordinated walking pattern! doi.org/10.64898/202... (author-list jumbled, see pdf for corrected). Video shows the central paradigm in this study, we optogenetically induce walking in headless flies and sequentially reduce proprioception.
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Jesper Sjöström @pjsjostrom.bsky.social · 23/04/2026
🧪 1/ New preprint from the lab: L5 pyramidal cell tLTD requires astrocyte Ca2+ and CB1 signaling www.biorxiv.org/content/10.6... We revisit a classic STDP result in visual cortex
biorxiv.org
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James Gagnon @james-gagnon.bsky.social · 13/04/2026
But there is more - phenotypes! inbreeding! pretty pictures! Read the full paper here at @devdynamics.bsky.social - anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
anatomypubs.onlinelibrary.wiley.com
Early ultraviolet exposure disrupts late dorsal fin skeletal development in zebrafish
Treating young zebrafish with UVB irradiation inhibits late dorsal fin development by ablating the larval fin fold so that fin skeletal mesenchyme cannot invade and form the fin skeleton. Genetically...
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 04/04/2026
Pls share: A postdoctoral researcher position is available in the Scharf lab in the Department of Biological Sciences at Virginia Tech to study motility and chemotaxis in the symbiotic soil bacterium Sinorhizobium meliloti. jobs.apply.vt.edu/jobs/postdoc...
jobs.apply.vt.edu
Postdoctoral Associate - Blacksburg, Virginia, United States
Job Description A full-time postdoctoral researcher position is available in the Scharf lab in the Department of Biological Sciences at Virginia Tech to study motility and chemotaxis in the symbioti...
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spottingthespot.bsky.social @spottingthespot.bsky.social · 03/04/2026
Hey @natureportfolio.nature.com is this some sort of joke?? Please act ASAP. This is an abomination! 👇How the hell did this ever pass peer review, editorial processes??? doi.org/10.1038/s415...
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Cameron Blevins @cblevins.bsky.social · 03/04/2026
This is so, so well-articulated.
People call this friction "grunt work." Schwartz uses exactly that phrase, and he's right that LLMs can remove it. What he doesn't say, because he already has decades of hard-won intuition and doesn't need the grunt work anymore, is that for someone who doesn't yet have that intuition, the grunt work is the work. The boring parts and the important parts are tangled together in a way that you can't separate in advance. You don't know which afternoon of debugging was the one that taught you something fundamental about your data until three years later, when you're working on a completely different problem and the insight surfaces. Serendipity doesn't come from efficiency. It comes from spending time in the space where the problem lives, getting your hands dirty, making mistakes that nobody asked you to make and learning things nobody assigned you to learn.
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Maria de la Paz Fernandez @mariadelapax.bsky.social · 31/03/2026
We are so looking forward to CSHL Neurobiology of Drosophila 2026 🔬 🧠. The new application deadline is April 13th. Come join us! @cshlnews.bsky.social @cshlcourses.bsky.social @rister.bsky.social
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Abby Polter @ampolter.bsky.social · 30/03/2026
As a reminder: I am hiring a postdoc and at least one research assistant for a project on VTA circuits and cognitive function that starts this summer. Get in touch if interested!
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Lauer Lab @lauerlab.bsky.social · 26/03/2026
Our R25 otolaryngology research training program is now accepting applications from med students. Link to application is on the website. Please share! www.hopkinsmedicine.org/otolaryngolo...
hopkinsmedicine.org
NIH-funded R25 Resident and Medical Student Research Program
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Benjamin Judkewitz @benjulab.bsky.social · 12/03/2026
Tiny, transparent, and now charted! Our brain atlas of adult Danionella cerebrum includes >200 annotated regions, 29 whole-brain in situs, and male/female reference volumes – openly available, versioned and extendable. Work by @nkadobyansky.bsky.social and team. www.biorxiv.org/content/10.6...
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Kristian Herrera @kherrera.bsky.social · 09/02/2026
New paper out : "Synchronization of behavioral and cardiac dynamics in larval zebrafish" Here, we report a pretty striking relationship between behavioral state and heart rate in larval zebrafish, and then explore the mechanisms that lead to this coupling bit.ly/4ciYt3R
bit.ly
Synchronization of behavioral and cardiac dynamics in larval zebrafish
Animals reprioritize behavioral goals in response to internal physiological states. Using larval zebrafish, we investigated whether engagement with a …
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Parichy Lab | Dave Parichy @dparichy.bsky.social · 23/02/2026
We have a postdoc position available. Please forward to anyone who may be interested.
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Martin Haesemeyer @haesemeyerlab.bsky.social · 16/02/2026
I honestly like this comment both in and out of context 😂
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lyons-lab.bsky.social @lyons-lab.bsky.social · 12/02/2026
Latest from the lab, led by @ara-donia.bsky.social and @juliavdkorput.bsky.social Huge team effort, with immense contributions by friends from nearby and around the globe. www.science.org/doi/10.1126/...
science.org
Myelin sheaths in the central nervous system can withstand damage and dynamically remodel
Myelin damage is a hallmark of several neurological disorders, but how it occurs remains to be fully understood. In this study, we found that early damage in zebrafish and rodent demyelination models ...
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Ben de Bivort @debivort.bsky.social · 12/02/2026
Behavioral biases drift in individuals. • Drift happens on many timescales • Drift rate depends on genetics and neuromodulators • It might be adaptive for rapidly changing environments elifesciences.org/reviewed-pre...
elifesciences.org
Drift in Individual Behavioral Phenotype as a Strategy for Unpredictable Worlds
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Martin Haesemeyer @haesemeyerlab.bsky.social · 09/02/2026
soundcloud.com/toramonki/se...
soundcloud.com
Seaside
Music for a rundown shack at the beach
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Monika Scholz @monikakscholz.bsky.social · 21/01/2026
First joint work between @jameslightfoot.bsky.social and my lab is now published! Machine-learning, aggression, genetics, beautiful fluorescent transgenics and evolution! You can find it all!
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Katrin Vogt @katrinvogt.bsky.social · 21/01/2026
The second paper from the lab is now available on bioRxiv: www.biorxiv.org/content/10.6... We discovered that cannibalistic behavior in fly larvae is social-context dependent. Larval groups avoid dead conspecifics; individuals show high attraction. They only do it when no one is watching 😉
Several fly larvae are crawling on an agar surface.
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Marine Biological Laboratory @mblscience.bsky.social · 15/01/2026
Don't miss out. Apply to our 2026 Advanced Research Training Courses today!
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Samara Reck-Peterson @samreckpeterson.bsky.social · 22/12/2025
Join the Reck-Peterson lab in NYC as a HHMI Research Technician! This role will support our new work on the cell biology of secondary metabolite production in filamentous fungi. Apply here: hhmi.wd1.myworkdayjobs.com/en-US/Extern...
hhmi.wd1.myworkdayjobs.com
Research Technician - Reck-Peterson Lab
Primary Work Address: 418 E 71st St #21, New York, NY, 10021 Current HHMI Employees, click here to apply via your Workday account. About the role: The Reck-Peterson lab studies the molecular mechanism...
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Zebrafish Rock! @zebrafishrock.bsky.social · 15/12/2025
For those that knew Adam ❤️
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Chris Krupenye @chriskrupenye.bsky.social · 02/12/2025
🚨Job Alert plz RT! Johns Hopkins Psych & Brain Sciences is looking for a new colleague using behavioral or computational approaches to study cognition! We are excited about many areas of (esp higher) cognition in human adults, children, or nonhuman animals Open-rank apply.interfolio.com/178146
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