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Lukas Groschner

@lukasgroschner.bsky.social

Brains, biophysics, behaviour https://www.groschner-lab.org

558 Followers  |  507 Following  |  3 Posts  |  Joined: 15.11.2024
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Posts by Lukas Groschner (@lukasgroschner.bsky.social)

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After 5 years of developing, a new preprint from the lab - introducing our workflow for comparative insect connectomics, aimed at democratizing connectomics. @erc.europa.eu @lundvision.bsky.social @biologylu.bsky.social Read it here: www.biorxiv.org/content/10.6...

01.03.2026 20:58 β€” πŸ‘ 7    πŸ” 5    πŸ’¬ 2    πŸ“Œ 0
ShineGAL4 FLP-out clones

ShineGAL4 FLP-out clones

#Drosophila calling. Delighted to share our new collection of ShineGAL4 drivers for CNS, FB, muscles, enterocytes, oenocytes and MTs made by @vgirard.bsky.social, @sebsorge.bsky.social and colleagues @crick.ac.uk. All at Bloomington @bdsc.bsky.social

@dev-journal.bsky.social
tinyurl.com/4jpw9jd6

25.02.2026 16:03 β€” πŸ‘ 43    πŸ” 23    πŸ’¬ 1    πŸ“Œ 2
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Mechanical Engineer, Hardware Systems - Card Lab Primary Work Address: 100 Haven Avenue, New York, NY, 10032 Current HHMI Employees, click here to apply via your Workday account. The Howard Hughes Medical Institute (HHMI) advances the discovery and ...

The Card lab at Columbia Univ (NYC) is hiring a mechanical engineer! If you like tinkering with mechanical systems and want to help us build custom rigs for neuroscience research, this job is for you! Please feel free to pass along to interested folks.

hhmi.wd1.myworkdayjobs.com/en-US/Extern...

26.02.2026 16:02 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Structural determinants for GPCR-mediated inhibition of TASK K2P channels by diacylglycerol and its dysfunction in disease - The EMBO Journal Two-Pore Domain K+ (K2P) channels are crucial determinants of the resting membrane potential and of cellular electrical excitability in many different cell types. TASK-1 and TASK-3 K2P channel activit...

Our latest work on the structural determinants for GPCR-mediated inhibition of TASK K2P channels by diacylglycerol is now finally published open access @embojournal.org

link.springer.com/article/10.1...

25.02.2026 12:10 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Do you:
Have a strong interest in science?
A passion for journalism and writing? 

Our paid 3-month internship might be for you!

We are looking for talented candidates from all backgrounds, especially those traditionally underrepresented in publishing.

Applications close 9 March 2026.

Do you: Have a strong interest in science? A passion for journalism and writing? Our paid 3-month internship might be for you! We are looking for talented candidates from all backgrounds, especially those traditionally underrepresented in publishing. Applications close 9 March 2026.

Calling all budding science writers!

Applications for our paid London-based internship, starting in June, are now open.

Deadline: 9 March 2026

Full info here: springernature.wd3.myworkdayjobs.com/en-US/Spring...

#PaidInternship #Internship #Journalism

25.02.2026 11:12 β€” πŸ‘ 59    πŸ” 64    πŸ’¬ 0    πŸ“Œ 2
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Quantitative Approaches to Behavior and Virtual Reality - CAJAL […]

You have until March 3rd to apply for the Cajal summer school on Quantitative Approaches to Behavior and VR at Champalimaud! Come surf and track animals with us πŸ„πŸͺ°πŸŸπŸšΆ
cajal-training.org/on-site/quan...

19.02.2026 17:37 β€” πŸ‘ 24    πŸ” 18    πŸ’¬ 1    πŸ“Œ 3
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Specialized parallel pathways for adaptive control of visual object pursuit Collie et al. show how adaptive control in Drosophila visual pursuit arises from two parallel pathways: one steers objects from the periphery toward the center, while the other maintains central fixat...

Thrilled to share that my graduate work is officially published in Neuron! πŸŽ‰
www.cell.com/neuron/fullt...

18.02.2026 16:15 β€” πŸ‘ 47    πŸ” 10    πŸ’¬ 3    πŸ“Œ 1
Fluorescent neurons on black background. We're hiring! PhD Student

Fluorescent neurons on black background. We're hiring! PhD Student

🚨 We are #hiring a PhD Student to study cerebellum-like circuits in #Drosophila.

Please spread the word!

www.groschner-lab.org/join

#Neuroscience #PhD

14.02.2026 21:42 β€” πŸ‘ 15    πŸ” 18    πŸ’¬ 0    πŸ“Œ 1

Our new preprint is out!

A state-dependent neural circuit resolves approach–avoidance conflicts

www.biorxiv.org/content/10.6...

Fantastic work led by Devika Bodas, with key contributions from Marine Balcou, and a great collaboration with Lisa Scheunemann Lab, fearuting Şevval Demirci.

13.02.2026 14:29 β€” πŸ‘ 47    πŸ” 19    πŸ’¬ 1    πŸ“Œ 2
addison-wheeler-fellowship - Durham University

🚨 Postdoc opportunity to study memory or nutrition in #Drosophila πŸͺ°

I am looking for a candidate to support for a 3 year Addison Wheeler Fellowship application lnkd.in/e2rvNf5x

Interested? Please send a CV & cover letter with brief research outline by 20th February to vincent.croset@durham.ac.uk

12.02.2026 15:31 β€” πŸ‘ 14    πŸ” 21    πŸ’¬ 0    πŸ“Œ 1
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"Saw her in the Amazon
With the voltage runnin' through her skin
Standin' there with nothin' on
She gonna teach me how to swim"

for more about the electric (f)eel, check this primer by Ken Catania ⚑ www.cell.com/current-biol...

(and yes, finally some current biology in Current Biology)

05.02.2026 08:10 β€” πŸ‘ 71    πŸ” 14    πŸ’¬ 3    πŸ“Œ 1

Very thankful for this thoughtful dispatch by @shaisrael.bsky.social sky.social and Moshe Parnas about our work. Learning and memory: Forgetting to remember: Current Biology www.cell.com/current-biol...

05.02.2026 13:24 β€” πŸ‘ 34    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1
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The first paper from the lab is now out in Science Advances: Multimodal social context modulates larval behavior in Drosophila
www.science.org/doi/10.1126/...
We find that fly larvae keep their distance to conspecifics in the absence of food, enjoy reading! @cbehav.bsky.social @uni-konstanz.de

02.02.2026 20:31 β€” πŸ‘ 81    πŸ” 35    πŸ’¬ 6    πŸ“Œ 0

Come join us to work on building AI for biosensor design!

26.01.2026 03:09 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Paper out now in eLife: DANCE. We combine machine learning with accessible hardware to quantify Drosophila social behaviors.

Low-cost behavioral rigs are not a compromise, they are a design philosophy. Accessibility changes the questions we can ask.

elifesciences.org/articles/105...

30.12.2025 07:12 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Pyramidal neurons proportionately alter cortical interneuron subtypes - Nature Pyramidal neuron-driven mechanisms actively promote the survival and terminal differentiation of their associated interneuron subtypes.

Excited for the publication of our recent work on how pyramidal cells shape the identity of interneurons in the Cortex! Big shout out to @artofbiology and Sherry Jingjing wu! www.nature.com/articles/s41...

22.01.2026 17:04 β€” πŸ‘ 58    πŸ” 15    πŸ’¬ 0    πŸ“Œ 2
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European Conference on Mathematical & Theoretical Biology 2026 ECMTB is coming to Graz, Austria in July 2026. Registration and Call for Contributions are open!

🧬 Minisymposium deadline extended!

Good news for prospective organizers: new submission deadline is now 31 Jan 2026 (AoE).

A few extra days to finalize your proposals for ECMTB 2026 in Graz!

πŸ“… July 13–17, 2026 | πŸ“ Graz, Austria

Details β†’ ecmtb2026.org/call-for-contributions

21.01.2026 13:46 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Several fly larvae are crawling on an agar surface.

Several fly larvae are crawling on an agar surface.

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 πŸ˜‰

21.01.2026 12:29 β€” πŸ‘ 46    πŸ” 24    πŸ’¬ 2    πŸ“Œ 2
Society for Mathematical Biology - Landahl Travel Awards

πŸ“£ Planning to attend the joint ECMTB-SMB conference in Gratz? Need final support?

Applications for the Landahl Travel Awards from @smbmathbiology.bsky.social are now open!
The closing date is πŸπŸ“ 𝐌𝐚𝐫𝐜𝐑 πŸπŸŽπŸπŸ”.

πŸ”— smb.org/Landahl-Trav....

16.01.2026 08:45 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Neuronal calcium spikes enable vector inversion in the Drosophila brain In the fly central complex, PFNa neurons switch from firing classical sodium spikes when depolarized to firing non-canonical T-type calcium spikes when hyperpolarized. This bidirectional spiking allow...

www.cell.com/cell/fulltex...

We had a lot of fun working on this project (led by Itzel Ishida, not on bluesky). Some interesting highlights from the paper -

06.01.2026 16:35 β€” πŸ‘ 59    πŸ” 28    πŸ’¬ 1    πŸ“Œ 3
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0.00003 foot tall xmas tree from a Drosophila flight steering muscle πŸŽ„

image by @anne-sustar.bsky.social

24.12.2025 23:34 β€” πŸ‘ 582    πŸ” 87    πŸ’¬ 6    πŸ“Œ 4
On the left, the image shows a schematic of a fly head, ring neurons and EPG neurons together with some calcium imaging frames. On the right is a photo of a fly on a ball in virtual reality and another schematic of a VR system.

On the left, the image shows a schematic of a fly head, ring neurons and EPG neurons together with some calcium imaging frames. On the right is a photo of a fly on a ball in virtual reality and another schematic of a VR system.

πŸ“’ Join us, the Haberkern lab, @uni-wuerzburg.de for a postdoc studying neural circuit mechanisms of navigation. You’ll spearheading neurophysiology experiments on our brand new 2P!

⏳ Apply by 28th February 2026

Details: www.haberkernlab.de/docs/ENPostd...

#neuroscience #academicjobs #postdoc

23.12.2025 11:27 β€” πŸ‘ 54    πŸ” 40    πŸ’¬ 3    πŸ“Œ 3
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Very proud of this new paper from the lab! Work by the magnificent Andrea Adden and many brilliant collaborators illuminate how moth and butterfly brains have evolved in light of different ecologies. Freely available here: rdcu.be/eVR3B; @lundvision.bsky.social @biologylu.bsky.social

22.12.2025 16:24 β€” πŸ‘ 67    πŸ” 20    πŸ’¬ 3    πŸ“Œ 0
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Re-exposure to reward re-evaluates related memories To adapt behavior in changing environments, animals must continuously re-evaluate previously learned associations. This flexibility of memory systems …

Carolin Warnecke together with Hanna, Dennis, Bene & Kerstin from my lab show that re-exposure to reward diminishes multiple associated olfactory memories.

We’re hiring 2 postdocsβ€”DM/email me for details. #Postdoc #Hiring

www.sciencedirect.com/science/arti...

20.12.2025 18:49 β€” πŸ‘ 21    πŸ” 9    πŸ’¬ 0    πŸ“Œ 1
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Jaxley: differentiable simulation enables large-scale training of detailed biophysical models of neural dynamics - Nature Methods Jaxley is a versatile platform for biophysical modeling in neuroscience. It allows efficiently simulating large-scale biophysical models on CPUs, GPUs and TPUs. Model parameters can be optimized with ...

I am super happy to share that our project on training biophysical models with Jaxley is now published in Nature Methods: www.nature.com/articles/s41...

13.11.2025 12:38 β€” πŸ‘ 78    πŸ” 16    πŸ’¬ 1    πŸ“Œ 3
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European Conference on Mathematical & Theoretical Biology 2026 ECMTB is coming to Graz, Austria in July 2026. Registration and Call for Contributions are open!

Come join us in July 2026 for the 14th European Conference on Mathematical & Theoretical Biology in Graz, Austria!

Registration opens now: ecmtb2026.org

#ECMTB’26
@smbmathbiology.bsky.social

11.11.2025 18:47 β€” πŸ‘ 27    πŸ” 15    πŸ’¬ 0    πŸ“Œ 1
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We’re hiring! 🚨
Assistant Professor (TT) in Theoretical or Computational Biological Physics @univmiami.bsky.social πŸ˜€

Come build the future of interdisciplinary biophysics with us!
Apply by Dec 15 β†’ tinyurl.com/5n9bk836

#Biophysics #PhysicsJobs #AcademicJobs #UMiami

08.11.2025 17:53 β€” πŸ‘ 12    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
Fellows Positions | Cold Spring Harbor Laboratory CSHL Simons Fellow in NEUROSCIENCE Cold Spring Harbor Laboratory (CSHL) is seeking to fill a Cold Spring Harbor Laboratory Fellow position in the area of NEUROSCIENCE (experimental and/or computationa...

Apply to become a CSHL-Simons Fellow in Neuroscience!

Run your own lab, pursue bold ideas, join a highly collaborative community!

All areas including experimental or computational neuro, including NeuroAI & systems

PhD required; ≀~1 yr postdoc

www.cshl.edu/about-us/car...

24.10.2025 19:16 β€” πŸ‘ 69    πŸ” 48    πŸ’¬ 2    πŸ“Œ 0
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Male CNS Connectome A team of researchers has unveiled the complete connectome of a male fruit fly central nervous system β€”a seamless map of all the neurons in the brain and nerve cord of a single male fruit fly and the ...

Exciting news for #drosophila #connectomics and #neuroscience enthusiasts: the Drosophila male central nervous system connectome is now live for exploration. Find out more at the landing page hosted by our Janelia FlyEM collaborators www.janelia.org/project-team....

05.10.2025 15:40 β€” πŸ‘ 143    πŸ” 69    πŸ’¬ 2    πŸ“Œ 8
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πŸ“’ 🚨 Technical Assistant Opportunity in Neuroscience πŸ“’ 🚨
Join us at @lmumuenchen.bsky.social and support research on how neural circuits 🧠 drive adaptive behavior!
⏳ Deadline: 15. November 2025
Learn more and apply: www.fens.org/careers/job-...

13.10.2025 06:03 β€” πŸ‘ 11    πŸ” 15    πŸ’¬ 0    πŸ“Œ 0