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Lorenz Assländer

@cybal.bsky.social
444 followers 798 following 77 posts

Researching the CYbernetics of human BALance multisensory integration | balance control | motor control | biomechanics VR to test balance | AR to improve balance Wannabe Entrepreneur

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Reposted by Lorenz Assländer
Russ Poldrack @russpoldrack.org · 10/09/2026
Amazing talk @defcon.bsky.social by Bruce Schneier that nicely captures how the current situation goes far beyond AI systems hacking computers. youtu.be/eEBv0STiYhI?...
youtu.be
DEF CON 34 - Hacking AI - Bruce Schneier
YouTube video by DEFCONConference
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Lorenz Assländer @cybal.bsky.social · 21/07/2026
Bookmarked this for my courses as it transports one of the most important messages when teaching writing: You have to really mean what you write.
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Matthieu Boisgontier @matthieuboisgontier.com · 30/04/2026
It’s time to submit your abstracts for this great conference www.posture.sk #posture @cybal.bsky.social @smbruijn.bsky.social @tobyellmers.bsky.social @elmarkal.bsky.social @eleagle.bsky.social @melvynroerdink.bsky.social @deepak-ravi.bsky.social @antoinelangeard.bsky.social @phterrier.bsky.social
@mark
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OHBM Trainees @ohbmtrainees.bsky.social · 01/04/2026
🚨Two weeks away!🚨 Reminder that our first workshop of the year will happen in two weeks featuring @russpoldrack.org. 🧠 Better Code, Better Science 📅22 April 2026 🔗Register: forms.gle/WRUdGQEpd5is... #OHBM #OpenScience
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Lorenz Assländer @cybal.bsky.social · 10/03/2026
Thx for the clarification!
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Lorenz Assländer @cybal.bsky.social · 10/03/2026
E.g. here: "Under normal physiological conditions, the cupula is completely attached around its periphery and precludes the movement of endolymph from one side of the ampulla to the other (Hillman 1974; McLaren and Hillman 1979; Rabbitt et al. 2009)." pmc.ncbi.nlm.nih.gov/articles/PMC...
pmc.ncbi.nlm.nih.gov
Semicircular canal biomechanics in health and disease
The semicircular canals are responsible for sensing angular head motion in three-dimensional space and for providing neural inputs to the central nervous system (CNS) essential for agile mobility, stable vision, and autonomic control of the ...
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Lorenz Assländer @cybal.bsky.social · 10/03/2026
Hey Jean, just wondering: I always thought the cupula mostly blocks the canal and while inertia leads to the liquid deforming the cupula, it cannot start flowing past it (as it seems in your videos). Furthermore, I thought the aftereffect comes from a neural velocity storage. Is that wrong/outdated?
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Dynamics of Human Performance Regulation Lab @dhprlab.bsky.social · 17/02/2026
We had the pleasure of welcoming Dr. Lorenz Assländer (Uni Konstanz) to our #DHPRlab meeting. He spoke about the cybernetics of human balance -how the nervous system integrates sensory cues to maintain stability- and about Augmented Visual Orientation Cues technology. Thank you, @cybal.bsky.social🙏
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Universität Konstanz @uni-konstanz.de · 17/12/2025
Wir gratulieren! Lorenz Assländer @cybal.bsky.social und Matthias Albrecht von der #UniKonstanz erhalten den Dr. K. H. Eberle Preis 2025 für eine innovative Augmented-Reality-Brille, die das Gleichgewicht älterer Menschen und neurologischer PatientInnen verbessern soll. Details: t1p.de/jcafk
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Dan Goodman @neural-reckoning.org · 27/11/2025
Nature Sci Rep publishes incoherent AI slop. eLife publishes a paper which the reviewers didn't agree with, making all the comments and responses public with thoughtful commentary. One of these journals got delisted by Web of Science for quality concerns from not doing peer review. Guess which one?
Two posts from Bluesky. The first one shows a figure from a paper published in Nature Scientific Reports full of totally incoherent AI fabricated gibberish words. The other a comment on a recently published paper by eLife discussing the paper and its peer reviews which were published along with the paper.
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Wanja Wolff @wanjawolff.bsky.social · 22/10/2025
📺 In the German primetime TV show JENKE Experiment, participants endured three hours of boredom - with a few theory-driven curveballs 😁 A vivid reminder that doing “nothing” can be tough & that boredom really matters. Very excited to have contributed to this project. www.joyn.de/bts/serien/j...
joyn.de
Jenkes neues Selbst-Experiment: Würdest du drei Stunden quälende Langeweile überstehen?
Was passiert, wenn die ständige Reizüberflutung durch das Smartphone wegfällt? Jenke von Wilmsdorff und Kameramann Jan haben genau das in einem radikalen Selbst-Experiment ausprobiert: Drei Stunden ab...
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Nick Brown @steamtraen.eu · 13/10/2025
Next time an institution tells you how seriously it takes research misconduct, ask them if it's *this* seriously. www.bmj.com/content/297/...
In 1916 the BMJ published an article about the work done by James Shearer, an American physician working in the British Army as a sergeant (because he had no British qualification). He had described a
"delineator" which was better than x rays for portraying gunshot wounds. This caused a sensation and a lot of interest — but on investigation the work was found to have been invented. The BMJ published a retraction, but Shearer was tried by court martial and sentenced to death by firing squad.
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Anonymous @youranoncentral.bsky.social · 06/10/2025
Jane Goodall offers sage advice for the rest of us. #3E
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Brian Umberger @brianumberger.bsky.social · 28/08/2025
Please repost! We have an open rank, tenure-line faculty position in biomechanics in the School of Kinesiology at the University of Michigan Ann Arbor. At U-M we have great colleagues, exceptional resources, and biomechanics can be found all across the campus. #BiomechSky
biomch-l.isbweb.org
Tenure-track Faculty Position in Biomechanics (Open Rank), University of Michigan, Ann Arbor, MI, USA - Biomch-L
The School of Kinesiology (http://kines.umich.edu) at the University of Michigan invites applications and nominations for a tenure-track faculty position at the level of Assistant Professor, Associate...
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Lorenz Assländer @cybal.bsky.social · 26/08/2025
Fully agree! Visual, vestibular and also proprioceptive sensory systems all have prominent velocity signals.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
🧠📈 #neuroskyence
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
Paper was recently featured in J Neuroscience; author copy through OSF. www.jneurosci.org/content/45/2... osf.io/emskv/ With sky-less Matthias Albrecht, Markus Gruber, and Robert Peterka. Supported by AFF @uni-konstanz.de
jneurosci.org
Is It Me or the Train Moving? Humans Resolve Sensory Conflicts with a Nonlinear Feedback Mechanism in Balance Control
Humans use multiple sensory systems to estimate body orientation in space. Sensory contributions change depending on context. A predominant concept for the underlying multisensory integration (MSI) is...
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
Our data is from sway behavior during standing balance. We believe the mechanism is generally relevant for the internal reconstruction of body orientation and #selfmotion for #motorcontrol, #perception, and #navigation.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
In a linear system, visual scene motion evokes body sway at just those frequencies contained in the scene motion. We predicted a distortion using simulations, where body sway is evoked at frequencies NOT contained in the scene motion. This non-intuitive prediction was confirmed in experiments.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
This reflects a reduced reliance on vision, quantitatively reproduced by the RFM mechanism. Furthermore, the RFM model - once tuned - also predicts sway in new sequences (Prediction).
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
A typical behavior is that subjects sway increases less than proportional when increasing the movement amplitude of the visual reference: the 'gain' (amplitude ratio between body sway and stimulus) is reduced with increasing stimulus amplitude (Model fit left-to-right).
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
We implemented this mechanism in a closed-loop balance control model and compared its behavior with the sway responses of 24 subjects viewing a moving visual screen in a virtual reality head-mounted display.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
The magic comes in, when assuming that the RFM reconstruction is blocked at small velocities and corrects (= is added to) the visual self-motion signal when exceeding a certain velocity threshold. Why magic? It explains human behavior related to context dependent changes in sensory contributions.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
In our new paper, we present evidence that the CNS continuously estimates the movement of the visual reference by comparing visual to other sensory cues. This reconstruction of Reference Frame Motion (RFM) happens in velocity. Why?
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
The underlying question is a fundamental problem in neuroscience: how does the nervous system construct body orientation from multiple, potentially conflicting sensory inputs? We might have a solution.
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Lorenz Assländer @cybal.bsky.social · 25/08/2025
Is it me, or the train moving? We use vision to maintain balance. Just close your eyes while standing on one leg and you typically feel less stable. But if we use vision, how come we do not fall when looking at a moving visual reference, e.g. a train? 📈🧠🧪 #sensorimotor #balance #BiomechSky
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Sholto David @sholtodavid.bsky.social · 05/08/2025
A new blog, written together with @academic-integrity.bsky.social
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Lorenz Assländer @cybal.bsky.social · 04/08/2025
Interesting paper, thread and discussion! Germany has this DEAL consortium, which currently is focused on promoting Open Access. Would be cool to push this towards non-profit journals only. deal-konsortium.de/en/
deal-konsortium.de
DEAL Konsortium - Homepage
DEAL-Konsortium provides information professionals and researchers with the practical support they need to take full advantage of the transformative agreements negotiated by Projekt DEAL.
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PHD Comics @phdcomics.com · 03/08/2025
Newton's Laws of Graduation, Part 1
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katja heuer @k4tj4.bsky.social · 27/07/2025
1 To predict the behaviour of a primate, would you rather base your guess on a closely related species or one with a similar brain shape? We looked at brains & behaviours of 70 species, you’ll be surprised! 🧵Thread on our new preprint with @r3rt0.bsky.social , doi.org/10.1101/2025...
Brain Surfaces of 70 primate species
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Christopher McCrum @chrismccrum.bsky.social · 24/07/2025
New job vacancy! Joint PhD: Prevent Falls with Augmented Reality (FallAR) at Maastricht & Hasselt Universities vacancies.maastrichtuniversity.nl/job/Maastric... with me, @melvynroerdink.bsky.social Pieter Meyns & @kennethmeijer.bsky.social @ispgr.bsky.social @worldfallssociety.bsky.social
vacancies.maastrichtuniversity.nl
Joint PhD: Prevent Falls with Augmented Reality (FallAR) at Maastricht & Hasselt University
Joint PhD: Prevent Falls with Augmented Reality (FallAR) at Maastricht & Hasselt University
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Melvyn Roerdink @melvynroerdink.bsky.social · 25/07/2025
Looking for a PhD-student position? Eager to work with advanced rehabtech and scalable augmented-reality solutions for fall-risk assessment and treatment? Learn from a team of scientists, Strolll entrepreneurs & developers and clinicians? Love interacting with older adults in NL & BE? Please apply!
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 09/07/2025
How can we reform science? I have some ideas. But I am not sure you’ll like them, because they don’t promise much. elevanth.org/blog/2025/07...
elevanth.org
Which Kind of Science Reform
What hope is there for science reform, if we can't agree on what to reform? Right now, principles are more important than practices.
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Wanja Wolff @wanjawolff.bsky.social · 03/06/2025
📢 New Publication 📢 Effort differentially shapes behavior before, during & after an action. w/ @bcheval.bsky.social, Silvio & Florent, we explore stage-specific effects of physical effort & how these dynamically modulate each other. Now out in Trends in Cognitive Sciences 🤩🤩 Curious? ⬇️
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Dan Goodman @neural-reckoning.org · 29/05/2025
I wrote an article earlier in the week arguing that we need to give junior researchers more independence earlier, and this should be our focus, not moonshot mega projects led by senior researchers. I was surprised how much agreement I'm seeing. So next question: how do we do this?
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Lorenz Assländer @cybal.bsky.social · 03/06/2025
Self-promotion: This is something we attempted for sensory integration in balance control. 1) quantitative model of how we think it works (based on previous work), 2) derived strong and unintuitive predictions, 3) conducted experiments to confirm. www.biorxiv.org/content/10.1... Does this count?
biorxiv.org
Is it me or the train moving? Humans resolve sensory conflicts with a nonlinear feedback mechanism in balance control
Humans use multiple sensory systems to estimate body orientation in space. Sensory contributions change depending on context. A predominant concept for the underlying multisensory integration (MSI) is...
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Lorenz Assländer @cybal.bsky.social · 13/05/2025
Jep, I fully agree. We did that in the last round and he/she was not happy. Problem is: I see the confirmation of a true and strong a priori prediction as very good evidence and he/she wants us to exclude all alternative explanations, which is simply impossible. Pretty fundamental disagreement 🤷‍♂️
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Lorenz Assländer @cybal.bsky.social · 13/05/2025
Here is the preprint - will post more on it once its out. www.biorxiv.org/content/10.1...
biorxiv.org
Is it me or the train moving? Humans resolve sensory conflicts with a nonlinear feedback mechanism in balance control
Humans use multiple sensory systems to estimate body orientation in space. A predominant concept for the underlying multisensory integration (MSI) is the linear summation of weighted inputs from indiv...
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Lorenz Assländer @cybal.bsky.social · 13/05/2025
If you derive a non-intuitive prediction of a nonlinear distortion, test and confirm it, do you have to test for other potential explanations within this publication? My point is: we can never fully exclude other potential explanations. A strong, testable prediction is the best we can do. No?
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Lorenz Assländer @cybal.bsky.social · 13/05/2025
Science question: we believe we have identified a mechanism for sensory integration in balance. We predicted distortions, tested and confirmed them. Reviewer: "..it is difficult to accept that these distortions provide additional support to the proposed model given there may be other sources." 🧪🧠📈
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Lorenz Assländer @cybal.bsky.social · 09/05/2025
Spread the word and consider registering! The app is easy to use, you can manipulate the visual sensory input and measure body sway. Main feature: a full control systems analysis routine including experimental assessment and model-based interpretation to output sensory weights and other parameters
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Lorenz Assländer @cybal.bsky.social · 09/05/2025
Interested in sensory integration in human balance? We present a virtual reality app to measure sensory integration and applications in a conference workshop @ispgr.bsky.social ispgr.org/program/#wor... Presenters: Bob Peterka, Laurie King, Chris Away, Saskia Neumann @dart-llui.bsky.social and me
ispgr.org
ISPGR World Congress program - ISPGR
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Blake Richards @tyrellturing.bsky.social · 22/04/2025
1/5) 🫤 I'm 100% not with you on this. Sorry, @ecologistgreen.bsky.social, but IMO this editorial is totally off the mark. What does peer review accomplish? Does it make science more trustworthy and credible? Nope. Let's get real for a moment... 🧪
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Lorenz Assländer @cybal.bsky.social · 23/04/2025
I believe in deleting all mails when returning from a vacation. Just add this as information to your auto-reply and kindly ask people to write again after your return date. (I do quickly look through my mail before deleting though, but I only reply to the most important ones)
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Jörn Diedrichsen @diedrichsenjorn.bsky.social · 18/11/2024
Interested in motor control or cerebellar function? We have two openings for graduate students for Fall 25. Join the sensorimotor superlab - our interdisciplinary research group Paul Gribble and Andrew Pruszynski. Application instructions at diedrichsenlab.org. Please repost 🙏
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Gavin Buckingham @drgbuckingham.bsky.social · 01/04/2025
I don't think the article is as noteworthy as the extraordinary open peer review and editorial summaries - imagine it was all done this way metaror.org/kotahi/artic...
metaror.org
Approximately 1 in 7 Scientific Papers Are Fake
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Lorenz Assländer @cybal.bsky.social · 24/03/2025
When the internal review process is the most rigorous, you mostly get helpful reviewer comments - and sometimes this. Thank you reviewer #2 😎
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Lorenz Assländer @cybal.bsky.social · 20/03/2025
😇 next coffee we talk about research.
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Lorenz Assländer @cybal.bsky.social · 15/03/2025
Not sure this is what you are looking for, but human balance is actually an excellent paradigm to study some of these things. Here is a current preprint where we propose a nonlinear dynamic mechanism explaining sensory integration during sensory conflicts. www.biorxiv.org/content/10.1...
biorxiv.org
Is it me or the train moving? Humans resolve sensory conflicts with a nonlinear feedback mechanism in balance control
Humans use multiple sensory systems to estimate body orientation in space. A predominant concept for the underlying multisensory integration (MSI) is the linear summation of weighted inputs from indiv...
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Lorenz Assländer @cybal.bsky.social · 06/03/2025
What’s next? It seems to help this vertigo patient a lot. Can’t put n words how motivating this is for us! So let’s see what other patients say. And the big goal is yet to be tested: how useful is AVOC for fall prevention?
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