iiinova — where your digital self keeps evolving

Reposted by Mikkel Roald-Arbøl

Harris Kaplan @harriskaplan.bsky.social · 14/08/2026

I'm thrilled to announce the opening of the Kaplan lab at the University of Virginia @uvabio.bsky.social ! We are a neuroscience lab aiming to define circuits underlying naturalistic behaviors in infants and adults. We're actively recruiting students and postdocs. Learn more at kaplan-lab.org.

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Mikkel Roald-Arbøl @roald-arboel.com · 11/07/2026

Thanks! Oh, that’s interesting, haven’t come across that! I’ll look into it and maybe I’ll do some changes to the auto selection then. 😅

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

We do an awful lot of looooong video recordings in our lab and have long wanted an easy way to clip, compress and combine videos for our workflows. So here's #croppy! 🦀 I hope others will find it useful too - I'd love to hear if you do! And would appreciate if you give it a star on Github! 🌟

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

You can find it from Launchpad I believe (Apps on Tahoe). An issue to clarify in the docs would be useful!☺️

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

@dinrao.bsky.social Ah! It's just because the docs hadn't updated the preferred installation method - run `pixi global uninstall croppy` and `pixi global install croppy` and you should get the latest version. 😊

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

Great to hear! Would love to hear some feedback once you've played around with it for a bit 😃

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026

That looks like an earlier version for sure - can you try running `croppy --version` to check? Optimally it should be 0.6.0 (later today 0.6.1). But it may be that the OS is too old to support it. If you could open an issue on github.com/roaldarbol/c..., that would be amazing, then I'll investigate!

github.com

Issues · roaldarbol/croppy

Common video chores — cropping, trimming, joining, and compressing — in one window. - Issues · roaldarbol/croppy

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Mikkel Roald-Arbøl @roald-arboel.com · 01/07/2026

Ah, super cool! Would you be able to share the tracking data, or not yet?🙈

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Mikkel Roald-Arbøl @roald-arboel.com · 30/06/2026

This looks awesome! I saw the other video elsewhere on Bluesky (mu.social/profile/wsde...) - what tool/software did you use to track the cells, and is the data available? 😃 I'm building R packages for tracking data (animovement.dev), and would love to use this for an example!

animovement.dev

Animovement – R Toolbox for Movement Analysis

Open‑source R toolbox for analyzing animal movement data. Install, explore tutorials, and visualize trajectories.

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Reposted by Mikkel Roald-Arbøl

Horst Obenhaus @octoscience.bsky.social · 29/06/2026

🌟 NEW OCTRON RELEASE! 🌟 Want to track your animals using the command line? You can now train models and predict videos with single prompts in a terminal! Ideal for batch jobs, headless servers, and remote machines. Big shout-out to @roald-arboel.com for helping with this release!

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Reposted by Mikkel Roald-Arbøl

SLEEB Lab Bonn @sleeblab.bsky.social · 23/06/2026

Off to the caves! We’re finally back in the field: filming sleepy cave spiders! 🕷️🕸️ Let’s see what we find! #fieldwork #animalsleep #caves @roald-arboel.com @nadjageiger.bsky.social @roesslerdaniela.bsky.social @unibonn.bsky.social

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Mikkel Roald-Arbøl @roald-arboel.com · 13/06/2026

Did this a few weeks back and am also really happy with it. They just announced mu.social a few days ago - which amongst other things allows you to edit posts and has a dedicated new tab. Federation is cool!🥳

mu.social

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Reposted by Mikkel Roald-Arbøl

Mackenzie Weygandt Mathis @trackingactions.bsky.social · 01/06/2026

🔥 Our latest work is state of the art 3D pose estimation, with video analysis from a single camera! 🎥 Just train with 3D data, and then only 1 camera is needed! 🖤 Presented this week at #CVPR2026 by lead author Ti Wang! Please repost🩵🙏🏼 xiu-cs.github.io/FMPose3D/ arxiv.org/abs/2602.05755

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Reposted by Mikkel Roald-Arbøl

Nadja Geiger @nadjageiger.bsky.social · 01/06/2026

New paper alert!🕷️✨ Tiny spider. Shiny abdomen. Suspiciously wiggly bum. In our new study, we asked what abdomen bobbing in this jumping spider is really all about: Cute? Yes. Meaningful? Let’s find out...! [1/8] @unibonn.bsky.social link.springer.com/article/10.1007/s00265-026-03745-1

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Daniela Rößler @roesslerdaniela.bsky.social · 31/05/2026

🚨 TWERK ALERT 🚨 New publication from @sleeblab.bsky.social ! This was a very fun project to write up, co-lead by @nadjageiger.bsky.social and Chiara Hirschkorn. If you are interested why these spiders might bob their abdomen: link.springer.com/article/10.1... (Short thread following soon)

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Mikkel Roald-Arbøl @roald-arboel.com · 16/05/2026

Can report that it also works flawlessly with a custom domain.

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Mikkel Roald-Arbøl @roald-arboel.com · 16/05/2026

Good shout! Just migrated myself too🥳

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Reposted by Mikkel Roald-Arbøl

Talmo Pereira @talmo.bsky.social · 05/05/2026

We tracked mice in space! This video shows our estimate of their self-induced centripetal force during circling in 3D 👩‍🚀 Preprint thread below 👇

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Reposted by Mikkel Roald-Arbøl

John Tuthill @tuthill.bsky.social · 04/05/2026

New preprint: Whole-body 3D kinematics of freely behaving 𝐷𝑟𝑜𝑠𝑜𝑝ℎ𝑖𝑙𝑎 New tech from @blobology.bsky.social & others at @hhmijanelia.bsky.social, which @ispizua.bsky.social and @elliottabe.bsky.social used to gain insight into 3D structure of locomotion & courtship www.biorxiv.org/content/10.6...

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Mikkel Roald-Arbøl @roald-arboel.com · 13/04/2026

That’s awesome Lochlan! Are you only using the GUI or also a notebook or CLI? Let me know if you hit any pain points!😃

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Mikkel Roald-Arbøl @roald-arboel.com · 06/04/2026

Cannot wait to see this happen, super exciting!!!😃

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Mark Histed @markhisted.org · 29/03/2026

The hardest part of science is posing the right question, not answering it.

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Datta Lab @dattalab.bsky.social · 25/03/2026

Have you ever wondered why mice do what they do when they are free to do whatever they want? Check out our latest (and this slightly delayed thread about our recent paper, led by Caleb Weinreb and friends...) www.cell.com/neuron/fullt...

cell.com

Spontaneous behavior is a succession of self-directed tasks

Weinreb et al. reveal a hierarchy of timescales in mouse behavior, including low-level syllables and high-level behavioral states. States and syllables are encoded in different brain areas. Prefrontal...

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Reposted by Mikkel Roald-Arbøl

Biological Theory @biologicaltheory.bsky.social · 06/03/2026

➡️ New Classics in Biological Theory article out! ⬅️ Revisiting Rosenblueth, Wiener, and Bigelow’s “Behavior, Purpose and Teleology” (1943) by Auguste Nahas (@augustenahas.bsky.social) Open access, also to Rosenblueth et al. (1943) (supplementary material) on: link.springer.com/article/10.1...

link.springer.com

Revisiting Rosenblueth, Wiener, and Bigelow’s “Behavior, Purpose and Teleology” (1943) - Biological Theory

Biological Theory - This article examines Rosenblueth, Wiener, and Bigelow’s 1943 article “Behavior, Purpose and Teleology”, which is widely remembered both as the foundational...

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Mikkel Roald-Arbøl @roald-arboel.com · 07/03/2026

Thanks! Do you know if it'll be on any festivals near Bonn/Cologne? Regardless where it ends up I'd love to watch it! Also, it would be great to catch up sometime. :-)

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Mikkel Roald-Arbøl @roald-arboel.com · 07/03/2026

Sounds amazing Anil. I recently lost a close family member to Alzheimer's, so this hits deep. Would have loved to catch it, but am not in Copenhagen then. Do you know when it will be available more widely elsewhere?

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Reposted by Mikkel Roald-Arbøl

Horst Obenhaus @octoscience.bsky.social · 06/03/2026

BIG UPDATES! OCTRON now supports the new SAM3 models (alongside SAM2)! We’ve also added a global switch for Detection vs. Segmentation: Use the same annotations to train either lightweight detection or full segmentation models. Plus, we’ve added support for the new YOLO26 models. ⤵️ 1/12

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Reposted by Mikkel Roald-Arbøl

Professor John R. Hutchinson @johnrhutchinson.bsky.social · 06/03/2026

Ants! Ants! Ants! 792 species of ants (!!!!!!) 3D scanned (high-throughput synchrotron X-ray microtomography) in luxurious detail: spectrum.ieee.org/3d-scanning-... paper: www.nature.com/articles/s41... website: www.antscan.info Phenomenal.

spectrum.ieee.org

Antscan’s 3D Atlas Reveals Ant Anatomy Like Never Before

How does a particle accelerator help us understand ants like never before?

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Reposted by Mikkel Roald-Arbøl

George Kafetzis @gkafetzis.bsky.social · 23/02/2026

Out now in @currentbiology.bsky.social! A dive into the deep history of vertebrate vision, together with @mikebok.bsky.social, @neurofishh.bsky.social and @denilsson.bsky.social Photo credit : Vasilis Karkalas

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Mikkel Roald-Arbøl @roald-arboel.com · 23/02/2026

Install with uv 📦 uv tool install boris-clip Then just point it at your .boris file: boris-clip annotations.boris Full docs at 📖 roald-arboel.com/boris-clip/

roald-arboel.com

Index - boris-clip

Extract video clips from BORIS behavioural annotation files

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Mikkel Roald-Arbøl @roald-arboel.com · 23/02/2026

boris-clip allows you to extract video clips at scale. It also provides some handy features: → one clip per bout, named by behaviour + subject → filter to just the behaviours you need → cap duration + clip count → add padding (time) around each behaviour

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Mikkel Roald-Arbøl @roald-arboel.com · 23/02/2026

Using BORIS to annotate animal behaviour and want a model to automate it? 🐦 DL classifiers need short, focused clips — not hour-long recordings. 𝗯𝗼𝗿𝗶𝘀-𝗰𝗹𝗶𝗽 extracts those from your `.boris` files, ready for BehaveAI, Octron, and friends. 🤖 roald-arboel.com/boris-clip/ #ComputationalEthology

roald-arboel.com

Index - boris-clip

Extract video clips from BORIS behavioural annotation files

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Reposted by Mikkel Roald-Arbøl

Jolyon Troscianko @jtroscianko.bsky.social · 21/02/2026

Our BehaveAI paper has just come out! Easy & effective tracking & behavioural classification, even with tiny (2px), fast moving, camouflaged objects. Paper: doi.org/10.1371/jour... Download: github.com/troscianko/B... @uniexecec.bsky.social @kevinjgaston.bsky.social @jimamclgalloway.bsky.social

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Insect Welfare Research Society @insectwrs.bsky.social · 17/02/2026

The @asab.org animal behavior ethics guidelines now reference our work on humane husbandry and ethical study design for insects and decapods! See the full guidelines: www.sciencedirect.com/science/arti...

sciencedirect.com

Guidelines for the ethical treatment of nonhuman animals in behavioural research and teaching

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Mikkel Roald-Arbøl @roald-arboel.com · 06/02/2026

Love the looks of these! Do you think it would be possible to make use of the "static" versions of these annotations in a normal Quarto HTML site (or a Typst/LaTeX PDF export for that matter)?

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Mikkel Roald-Arbøl @roald-arboel.com · 29/01/2026

This workshop was one of the highlights of my PhD! Highly recommend applying! Amazing science and amazing people allround - and all (reasonable) expenses paid!

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The R Foundation @r-foundation.bsky.social · 22/01/2026

We are responding to this call for evidence: ec.europa.eu/info/law/bet... Do you have concrete examples of the added value of #Rstats in the public or private sectors? Include the most important factors (risk, lock-in, security, innovation...) to assess the added value. Thanks!

ec.europa.eu

European Commission - Have your say

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Mikkel Roald-Arbøl @roald-arboel.com · 15/01/2026

Does anyone here use or have used EthoVision XT and/or ANY-Maze, and could possibly share some sample data with me? I'm making functions for importing movement data into R, and these are tools that I have yet to cover, but I need some data to help me on! #animalbehaviour #neuroskyence

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Mikkel Roald-Arbøl @roald-arboel.com · 14/01/2026

Done! Would also love to use this 😃

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Reposted by Mikkel Roald-Arbøl

Antoine Bergel @antbergel.bsky.social · 29/12/2025

⚠️ New paper alert and what a way to end 2025! 🎉 Happy to share our story “Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals.” published today in Nature Neuroscience. Sleeping dragons 🦎 and functional ultrasound! Read the full paper here: rdcu.be/eWJHb 1/8

rdcu.be

Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals

Nature Neuroscience - Bergel et al. show that an infraslow rhythm connecting the brain and body during sleep is shared by lizards, mammals and birds, revealing an ancestral process and reshaping...

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The Transmitter @thetransmitter.bsky.social · 03/12/2025

Machine learning should not be a replacement for human judgment but rather help us embrace the various assumptions and interpretations that shape behavioral research, write Nedah Nemati and Matthew Whiteway. #neuroskyence www.thetransmitter.org/behavioral-n...

thetransmitter.org

Beyond the algorithmic oracle: Rethinking machine learning in behavioral neuroscience

Machine learning should not be a replacement for human judgment but rather help us embrace the various assumptions and interpretations that shape behavioral research.

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Horst Obenhaus @octoscience.bsky.social · 23/12/2025

Do you love quantifying animal behavior as much as we do? We have just the tool for you! Presenting #OCTRON - a pipeline that helps you create rich annotation data and enables training of custom segmentation models. Have a look, particularly if you work with non-model / invertebrate organisms!

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Mikkel Roald-Arbøl @roald-arboel.com · 24/12/2025

The reason this could be useful is that it could be used for real-time tracking in Bonsai this way - and other tools such as TRex.

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Mikkel Roald-Arbøl @roald-arboel.com · 24/12/2025

Awesome! Would be cool to have integrated in Octron - I’ll be happy to give it a shot and make a PR in January too. I can open an issue on the other side of Christmas and then we could discuss the UX/UI implementation too?☺️

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Mikkel Roald-Arbøl @roald-arboel.com · 24/12/2025

Is it easy to export trained YOLO models to torchscript or ONNX?

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Mikkel Roald-Arbøl @roald-arboel.com · 24/12/2025

This looks awesome! I’ve been looking into training YOLO models for this exact purpose very recently, so will definitely try it out in January! Fantastic Christmas present!🥳🎄

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Mikkel Roald-Arbøl @roald-arboel.com · 18/12/2025

I would recommend PsychoPy (www.psychopy.org), where you can also make your experiments run in the browser so students don't have to install anything. Otherwise, if you happen to use Bonsai in the lab, check out BonVision (bonvision.github.io) which could also be useful for closed-loop experiments.

psychopy.org

Home — PsychoPy v2025.2.3

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Mikkel Roald-Arbøl @roald-arboel.com · 16/12/2025

I'd also recommend checking out @mikemorrison.bsky.social's stuff! Go for capturing attention, important messages should be hard to miss.

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