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Andreas Horn

@andreashorn.org
3.3K followers 806 following 3.7K posts

Schilling Professor for Computational Neurology at the @netstim.org / University Cologne. Author of @lead-dbs.org & @stimulatingbrains.org

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Andreas Horn @andreashorn.org · 11/09/2026
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Andreas Horn @andreashorn.org · 11/09/2026
Depends a lot how AI is used. Clearly written in the report. We need to educate young people how to use these new tools. Prohibiting them is not a practical option.
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Andreas Horn @andreashorn.org · 04/09/2026
High tech from Europe. Flagship 11.7T MRI news outlet shows first fMRI results from the Iseult scanner. The news is communicated in french and on a website that could scarcely be done worse.. Why does it always have to be done so poorly when things happen in Europe? joliot.cea.fr/drf/joliot/P...
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Andreas Horn @andreashorn.org · 28/08/2026
Made me check what people did with the other dud. Boo, Apple Maps, (partly boo, @newsfromgoogle.bsky.social). Yay, @mapquest.com!
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Andreas Horn @andreashorn.org · 20/08/2026
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Andreas Horn @andreashorn.org · 20/08/2026
Composite from the eclipse we saw last week – truly magical!
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Andreas Horn @andreashorn.org · 19/08/2026
Cologne friends, looking forward to host the one and only Dan Corp here next week – feel free to drop by if you are free. 👇👇
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Andreas Horn @andreashorn.org · 12/08/2026
Totality! Taken w a dwarf3 from Mallorca today.
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Andreas Horn @andreashorn.org · 27/07/2026
New perspective out @thelancetneuro.bsky.social w Anna Latorre, Marie Vidhailet et al. – where we further develop the idea that appendicular dystonia preferentially maps to BG networks while axial/cervical forms to cerebellar interations. Check it out here 👇👇 www.thelancet.com/journals/lan...
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Andreas Horn @andreashorn.org · 22/07/2026
I know! Isn't that great? I just clicked that button. Thanks for sharing, nonetheless, Editorial Manager. Top Story! Your UX-Design is simply top-notch, 👌 @elsevierconnect.bsky.social – we sure all know that all these taxpayer dollars are being well invested to make scientific workflows seamless.
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Andreas Horn @andreashorn.org · 12/07/2026
And this specificity is remarkable, since we are talking about the cingulate cortex here – one of the most unspecific parts of the human brain (since super old – agranular PFC). E.g. see these many functions that the network is generally associated with (10.1101/2023.10.10.561772):
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Andreas Horn @andreashorn.org · 12/07/2026
However, running this unthresholded map through the neurosynth decoder gives you 'pain', 'painful', 'noxious', 'nociceptive' as the most similar network terms from the body of the fMRI literature assembled by neurosynth.
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Andreas Horn @andreashorn.org · 12/07/2026
The network looks pretty unspecific as shown – you may think – well, salience network, right? This supports the prominent criticism voiced by van den Heuvel et al., earlier this year (www.nature.com/articles/s41...)
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Andreas Horn @andreashorn.org · 12/07/2026
New lesion network mapping paper from the Berlin group (Stegemann et al.) on post-stroke pain in @ohbmofficial.bsky.social can serve as a good example in the whole LNM validity discussion: They describe a network associated with new severe pain after stroke. pubmed.ncbi.nlm.nih.gov/42420807/
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Andreas Horn @andreashorn.org · 10/06/2026
Two different frequency bands each representing different things.
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Andreas Horn @andreashorn.org · 10/06/2026
Fantastic work on adaptive circuit targeting DBS decoding gait problems and switching to the optimal gait setting in such moments.
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Andreas Horn @andreashorn.org · 10/06/2026
Next up is yet another legend of the „new wave“ of adaptive DBS: Eduardo Mourad.
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Andreas Horn @andreashorn.org · 10/06/2026
Volitional stimulation - super cool!
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Andreas Horn @andreashorn.org · 10/06/2026
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Andreas Horn @andreashorn.org · 10/06/2026
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Andreas Horn @andreashorn.org · 10/06/2026
Personal opinion here - I thoroughly believe that @littleneuro.bsky.social and @julianneumann.bsky.social are single-handedly leading the next wave of AI-decoding based adaptive DBS. Way ahead of the curve and so much great stuff in the pipeline. V nice to see them both speak in the same session!
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Andreas Horn @andreashorn.org · 10/06/2026
Next up is none less than Simon Little - one of the few people that may claim has fostered a new FDA approval in the field of DBS.
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Andreas Horn @andreashorn.org · 10/06/2026
What a great discussion! #optoDBS 2026
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Andreas Horn @andreashorn.org · 10/06/2026
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Andreas Horn @andreashorn.org · 10/06/2026
Fantastic new work in the pipeline in both labs - exactly in the spirit of #optoDBS. So excited by this line of work and this fantastic shared keynote!
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Andreas Horn @andreashorn.org · 10/06/2026
The work challenges the dogma of GO vs NOGO pathways toward MOREOFTHIS vs STOPTHAT pathways started by Eric in the mouse and replicated by Julian in the human.
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Andreas Horn @andreashorn.org · 10/06/2026
The collaboration between @julianneumann.bsky.social and @yttrilab.bsky.social that led to this years keynote seems like a match made in heaven. But in fact, the two met at #optoDBS 2017!
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Andreas Horn @andreashorn.org · 10/06/2026
And were live! #optoDBS 2026 is oft to a great start here at Campus Biotech in Geneva. Christian Lüscher kicking off the conference - and since we are broadening the scope a lot: will we call it #optoMOD in the future?
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Andreas Horn @andreashorn.org · 30/05/2026
Tremor is highly heterogeneous, leading to a familiar clinical puzzle: with deep brain stimulation (DBS), we can sometimes suppress a patient's rest tremor almost completely, while action tremor remains bothersome. www.cell.com/cell-reports...
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Andreas Horn @andreashorn.org · 14/05/2026
Panierraupe und Matter Planier.
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Andreas Horn @andreashorn.org · 18/04/2026
Which way best defines the optimal deep brain stimulation target in #Parkinsons? x-y-z coordinates? sweet spots? fiber tracts? whole-brain networks? @patriciazvarova.bsky.social has just answered this question: All of them. New study out now in AoN: onlinelibrary.wiley.com/doi/epdf/10....
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Andreas Horn @andreashorn.org · 01/04/2026
More info!
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Andreas Horn @andreashorn.org · 31/03/2026
Save the date – see you in Seville!
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Andreas Horn @andreashorn.org · 26/03/2026
I'm looking forward to speaking at the Orchard OCD Conference in London on 4-5 June. I will be joining the panel "Advances In Neuromodulation and Neurosurgical Strategies for OCD" with Ludvic Zrinzo, Rebecca Prices, and Elsa Fouragnan. …
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Andreas Horn @andreashorn.org · 20/03/2026
Dear neuromodulation enthusiasts! Please join us at OptoDBS 2026, which will take place at the Campus Biotech in Geneva, Switzerland, from June 10th to 12th: www.optodbs.ch Please Repost for reach – thank you!! 🙏🙏
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Andreas Horn @andreashorn.org · 08/03/2026
Happy to share results ASAP. Still working on the stats.
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Andreas Horn @andreashorn.org · 08/03/2026
Game of Electrons.
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Andreas Horn @andreashorn.org · 27/02/2026
A recent @natneuro.nature.com paper analyzed lesion network mapping and raised concerns about the validity of the method. See below 👇 for our response. www.biorxiv.org/content/10.6...
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Andreas Horn @andreashorn.org · 26/02/2026
I recently came into possession of a new item for my office, which will undoubtedly become a critical all-purpose fix for our scientific projects. If, in the future, folks at @netstim.org should ever require more data, they can just reach behind the sofa and get it!
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Andreas Horn @andreashorn.org · 23/02/2026
Fantastic talk by @barbarahollunder.bsky.social on weaving together findings across studies in the field of connectomic DBS at the Würzburg expert summit!
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Andreas Horn @andreashorn.org · 20/02/2026
That's all folks, thanks for the attention! Congratulations to @bahnebahners.bsky.social and team for leading this fantastic work! Paper: pubmed.ncbi.nlm.nih.gov/41645667/ Press: uni-koeln.de/en/universit...
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Andreas Horn @andreashorn.org · 20/02/2026
(That tremor is in fact different also when seen with the fMRI lens was recently mapped out across various modalities in detail by @lukasgoede.bsky.social in @natcomms.nature.com: www.nature.com/articles/s41...)
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Andreas Horn @andreashorn.org · 20/02/2026
As in fMRI, these results seemed specific to hypokinetic motor improvements, not so much for improvements of tremor as a hyperkinetic symptom.
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Andreas Horn @andreashorn.org · 20/02/2026
While data for this was scarce, there were also hints that contrasting DBS ON vs. OFF during MEG scanning as well as DBS evoked potentials map to a similar network centered around this general SMA/pre-SMA/cingulomotor region.
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Andreas Horn @andreashorn.org · 20/02/2026
Findings were robust enough to calculate the network on data acquired in Düsseldorf on one MEG scanner – which was then used to explain variance in independent patients operated in Berlin and scanned using a different device.
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Andreas Horn @andreashorn.org · 20/02/2026
And in fact, when analyzing this data in the beta range, optimal improvements associate with coherence to a network that spatially resembles the PD response network described earlier.
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Andreas Horn @andreashorn.org · 20/02/2026
To characterize the PD response network, @bahnebahners.bsky.social used the same method in our present publication based on data acquired by the teams of Esther Florin and Andrea Kühn (🙏🙏🙏)
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Andreas Horn @andreashorn.org · 20/02/2026
What has been well studied across time is the signature of elevated beta synchrony (often expressed in form of long bursts) in the subthalamic nucleus. Well phenotyped by Peter Brown, Andrea Kühn, Helen Bronte-Stewart, @julianneumann.bsky.social etc. Review: pubmed.ncbi.nlm.nih.gov/37105806/
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Andreas Horn @andreashorn.org · 20/02/2026
Lukas went on to show that even the levodopa effects were stronger when 'priming' the network by tDCS – maybe / likely Levodopa also acts on the same network? pubmed.ncbi.nlm.nih.gov/40386963/
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Andreas Horn @andreashorn.org · 20/02/2026
Oh, and one more thing: A few of the patients that received tDCS went on to get DBS later. The magnitude of their tDCS effect correlated with their DBS effect – yet another hint that this truly is about modulating the same network.
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