Johannes Larsch
@jlarsch.bsky.social
410 followers 310 following 4 posts
Assistant Prof. at the University of Lausanne. Interested in how brains control social behavior. https://www.unil.ch/cig/en/home/menuinst/research/prof-larsch.html
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Reposted by Johannes Larsch
hannazwaka.bsky.social
“Blame your parents if you can’t pay enough attention." At least when you are a zebrafish! Our new study on attentional switching together with Kumaresh Krishnan, @paulapflitsch.bsky.social , @zwitscherarmin.bsky.social and Florian Engert is out in Science Advances:
doi.org/10.1126/scia...
Reposted by Johannes Larsch
danielkronauer.bsky.social
The final version of our paper on how ants and possibly other insects use a crazy mechanism involving extensive transcriptional interference to regulate odorant receptor expression is now open access in my favorite journal, @currentbiology.bsky.social

authors.elsevier.com/sd/article/S...
ScienceDirect.com | Science, health and medical journals, full text articles and books.
authors.elsevier.com
Reposted by Johannes Larsch
trose-neuro.bsky.social
BonnBrain 2026 is a go!
March 23–25, Bonn (DZNE, Bonn, Germany).
Apply now: www.bonnbrain.de
Limited slots. Presentations (posters/talks) selected from submitted abstracts.

Keynotes & invited speakers 👇
Reposted by Johannes Larsch
maxshafer.bsky.social
Now published @natecoevo.nature.com with @annika-nichols.bsky.social, our latest on the evolution of 𝘴𝘭𝘦𝘦𝘱 across 𝟲𝟬 𝘀𝗽𝗲𝗰𝗶𝗲𝘀 of cichlid fishes! doi.org/10.1038/s415...
with members of the @schierlab.bsky.social and Salzburger labs, as well as the burgeoning Shafer lab @uoftcellsysbiol.bsky.social
jlarsch.bsky.social
Jim was an incredibly gifted teacher. Still remember his fundamentals in Neuroscience. Also, great, dry sense of humor.
Reposted by Johannes Larsch
antihebbiann.bsky.social
Can't wait to read this preprint from Misha Ahrens and team. Calcium imaging in larval zebrafish, in every cell in the body! Amazing.

www.biorxiv.org/content/10.1...
Reposted by Johannes Larsch
danielkronauer.bsky.social
If you’re interested in ants, olfaction, gene regulation, or all of the above, here’s a new preprint from the lab for you. It describes an unorthodox mechanism of transcriptional interference by which ant olfactory sensory neurons produce a single functional receptor.
www.biorxiv.org/content/10.1...
Transcriptional Interference Gates Monogenic Odorant Receptor Expression in Ants
Communication is crucial to social life, and in ants, it is mediated primarily through olfaction. Ants have more odorant receptor (OR) genes than any other group of insects, generated through tandem d...
www.biorxiv.org
Reposted by Johannes Larsch
jefferis.bsky.social
Neuronal diversity is written in transcriptional codes 🧬. But what is the logic of these codes that define cell types and wiring patterns?
To find out we built a #scRNAseq developmental atlas of the Drosophila nerve cord and linked it to the #connectome 🪰🧠
#preprint thread ⬇️1/8
ALT text: A UMAP representation of a single cell RNAseq dataset from the Drosophila ventral nerve cord as well as images of the Drosophila nerve cord connectome and different stages of fly development.
Reposted by Johannes Larsch
carlbergstrom.com
1. "'Trusting the experts is not a feature of either a science or democracy," Kennedy said."

It's literally a vital feature of both science and of representative democracy.

I've written a fair bit about trust in expertise as a vital mechanism in the collective epistemology of science.
RFK Jr. in interview with Scripps News: ‘Trusting the experts is not science’
HHS Secretary RFK Jr. sat down with Scripps News for a wide-ranging interview, discussing mRNA vaccine funding policy changes and a recent shooting at the Centers for Disease Control and Prevention.
www.scrippsnews.com
Reposted by Johannes Larsch
elife.bsky.social
💡 Whether you’re a new student, a lab leader or a decision-maker at an institutional level, you can now find free tools and guidance all in one place on our new Learning Resources page.

With everything in the thread below and more, get learning today!
buff.ly/sIpX5gU
A stylised hand holds a smartphone from which colourful digital pages flow outward, surrounded by icons of books, screens, and learning materials on a dark blue and purple background.
Reposted by Johannes Larsch
ray-neuro.bsky.social
How does the brain work in natural scenarios, in multi-animal societies of wild animals? 🧠 🧪 🦇

doi.org/10.1126/scie...

(1/n)
Reposted by Johannes Larsch
felixbaier.bsky.social
🚨Very happy that my PhD work is now out in @nature.com!

We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments

www.nature.com/articles/s41...

This was a truly collaborative effort! 🧵⬇️
Reposted by Johannes Larsch
Great job opportunity at The Center for Integrative Genomics, Lausanne University, Switzerland unil.ch/cig/en/home....
For a tenure-track Assistant Professor position. More details for how to apply are here nature.com/naturecareer...
jlarsch.bsky.social
Become our colleague! Tenure-track Assistant Professor position at The Center for Integrative Genomics, University of Lausanne, Switzerland. unil.ch/cig/en/home....
More details for how to apply are here:
www.nature.com/naturecareer...
CIG- UNIL
jlarsch.bsky.social
Congratulations Silvana! 🎉
Reposted by Johannes Larsch
ethanscottlab.bsky.social
Congrats to @stednitz.bsky.social and Andrew Lesak on their @currentbiology.bsky.social paper! They use HMM to identify two interaction states in #zebrafish: one visual for long-range interactions and one lateral line for quick, close interactions.

Free link: authors.elsevier.com/a/1lCYh3QW8S...
Reposted by Johannes Larsch
ebi.embl.org
Heart disease is the world’s leading killer, and tackling it demands decoding the multi-gene networks driving disease progression 🫀

Learn how researchers used Medaka fish plus high-throughput heartbeat imaging to build a biomarker toolkit for early screening.

www.nature.com/articles/s41...