Benjamin Judkewitz

Benjamin Judkewitz

@benjulab.bsky.social

brainwide circuits, acoustic communication, danionella, microscopy https://jlab.berlin

2.6K followers387 following29 posts

Benjamin Judkewitz reposted

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...

Benjamin Judkewitz reposted

I thought I was a quirky little underdog fish with cool tricks, widening the model-organism spectrum. Suddenly, headlines: "Billion Dollar Fish Takes Over" Holy Mackerel! I guess there weren't any smaller fish to fry. Anyway, I'm still the same, still making the case for model diversity.

Benjamin Judkewitz reposted

1/8. New preprint! Using fUSi in head-fixed mice🐭, we found that arousal events trigger a brain-wide wave of activity 🌊🧠. Surprisingly, this pattern was preserved during opto manipulations of the locus coeruleus, pointing to a minor role for noradrenergic tone. www.biorxiv.org/content/10.6...

How do fish localize sound without interaural cues? @johve.bsky.social et al. found a behavioral algorithm for directional hearing that predicts behavior from a pressure/motion phase comparison and accounts for how this relationship varies with distance. www.cell.com/current-biol...

cell.comAn algorithm underlying directional hearing in fishVeith et al. show how a fish—Danionella cerebrum—can reliably startle away from sound. It uses the relative phase between particle motion and pressure to infer the direction of sound. This sensorimoto...

Benjamin Judkewitz reposted

Benjamin Judkewitz reposted

New paper out: www.nature.com/articles/s41... 🥳 Congratulations to our PhD student Katja for her inspiring work just published in Nature Communications on how the larval zebrafish brain processes multiple visual features. Check out a short summary of the work here: tinyurl.com/yzv4ct9k

Bahl Lab @bahllab.bsky.social

How do brains make decisions when faced with multiple, potentially conflicting cues? In our latest preprint, we show how #zebrafish use an additive strategy and process multiple visual features through anatomically distinct parallel pathways tinyurl.com/mvkn8em9 Thread 👇

Benjamin Judkewitz reposted

This is great -- thanks for your efforts and the documentation. We've got it up and running for tERK stains. Some kinks for us work out but running registrations in a few seconds is so very satisfying!

Benjamin Judkewitz@benjulab.bsky.social

Introducing warpfield, an open source Python library for GPU-accelerated non-rigid 3D registration. Warps and aligns gigavoxel volumes within seconds (not hours). For 3D microscopy, region-to-region and cell-to-cell matching. A collaboration with @mh123.bsky.social 🚀 github.com/danionella/w...

Since alt-text doesn't seem to render for videos, here are the video credits: Registration of artichoke 3D MRI using warpfield. Data by Alexandr Khrapichev, Oxford (source: Wellcome Collection, CC BY).

Benjamin Judkewitz reposted

Another study to share, led by my grad student Nicole Pranic! Before diving in, I'll add that Nicole (who is clever, tenacious, and interested in neural changes that underlie developmental changes in social behaviors) is looking for a post-doc position! Please RT! www.biorxiv.org/content/10.1...

biorxiv.orgVocal ontogeny in Mus musculusInfants of many species produce distress calls when in need of parental care. As they mature and gain independence from caregivers, juveniles stop producing infant calls and begin producing adult-like...

Benjamin Judkewitz reposted

We’re seeking a postdoc/student excited about animal communication, brain-wide circuits, microscopy, singing fish (Danionella), wacky ideas and who likes to: get things done, experiment, analyze, ask, learn, help and cooperate. jlab.berlin

Benjamin Judkewitz reposted

Interested in understanding how things work? In particular the tools you use to study the brain? Join us at TENSS 2025 where we brainstorm ideas, build and debug microscopes, electrophysiology and behavior rigs amidst the picturesque Transylvanian hills! tenss.ro Apply by: February 16th!

Benjamin Judkewitz reposted

1/3 How does visual input affect the heading direction (HD) network? In our latest lab preprint, Ryosuke presents "visual landmarks" to larval zebrafish and shows that the HD network tethers to the visual environment. The experiments are again inspired by the beautiful recent work in Drosophila.

How do they know who is talking? Sound localization by fish was long considered physically impossible, and yet it was shown behaviorally. With underwater sound illusions and laser vibrometry, Johannes Veith and @tomchaigne.bsky.social identified an underlying mechanism www.nature.com/articles/s41...

nature.comThe mechanism for directional hearing in fish - NatureA study demonstrates that the fish Danionella cerebrum is able to discriminate the direction of sound by comparing the relative phase of pressure and particle motion.

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