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Tomas Knapen

@tknapen.bsky.social
410 followers 893 following 30 posts

Computational Neuroimaging Researcher based in Amsterdam

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Reposted by Tomas Knapen
Martin Hebart @martinhebart.bsky.social · 16/05/2026
Finally, today is the day: Josefine Zerbe will present and release our new multi-echo 7T fMRI dataset LAION-fMRI during #VSS2026, with >30 fMRI session per subject and unprecedented stimulus diversity. Come to Talk Room 1 (Scene perception) today at 5:15. Details will follow in a separate thread!
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Alexander Huth @alexanderhuth.bsky.social · 05/01/2026
This paper had a pretty shocking headline result (40% of voxels!), so I dug into it, and I think it is wrong. Essentially: they compare two noisy measures and find that about 40% of voxels have different sign between the two. I think this is just noise!
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Fernanda Ribeiro @felenitaribeiro.bsky.social · 01/12/2025
Investigating individual-specific topographic organization has traditionally been a resource-intensive and time-consuming process. But what if we could map visual cortex organization in thousands of brains? Here we offer the community with a toolbox that can do just that! tinyurl.com/deepretinotopy
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Spinoza Centre for Neuroimaging @spinozacentre.bsky.social · 01/12/2025
Our team's new publications cover the Nature portfolio! 🧪🧠 - Vision & touch (Nature, rdcu.be/eSsZR) - Psychedelics (Nat Commun, rdcu.be/eSsZ2) - Binocular rivalry (Nat Hum Behav, rdcu.be/eSsYW) - CSF mobility (Nat Neurosci, rdcu.be/eSs0c) - Numerical cognition (Commun Biol, rdcu.be/eSs0p)
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Nature @nature.com · 27/11/2025
Nature research paper: Vicarious body maps bridge vision and touch in the human brain go.nature.com/4839zaL
go.nature.com
Vicarious body maps bridge vision and touch in the human brain - Nature
A mode of brain organization that connects visual and bodily reference frames may translate raw sensory impressions into more abstract formats that are useful for action, social cognition and semantic processing.
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Tomas Knapen @tknapen.bsky.social · 26/11/2025
New today in @Nature: your visual cortex contains touch-based body maps. bit.ly/VisualBodyMaps Your brain transforms what you see into first-person, body-referenced codes: A previously unknown bridge between vision and touch.
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Tomas Knapen @tknapen.bsky.social · 24/11/2025
On the nose
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Tomas Knapen @tknapen.bsky.social · 24/11/2025
Very proud of Marco’s work in this project!
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Serge Dumoulin @sergedumoulin.net · 23/11/2025
The paper demonstrating that #psilocybin alters contextual computations is out in @natcomms.nature.com : doi.org/10.1038/s414... Thanks to the reviewers and coauthors : @marcoaqil.bsky.social , @tknapen.bsky.social , @gillesdehollander.bsky.social , and Nina Vreugdenhil
doi.org
Psilocybin alters visual contextual computations - Nature Communications
This study finds psilocybin alters visual contextual brain processes and perception, suggesting a generic mechanism through which psychedelics influence brain function and subjective experience.
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Tomas Knapen @tknapen.bsky.social · 17/05/2025
Hey everyone at @vssmtg.bsky.social! If you’re interested in pRF fitting, go visit Garikoitz Lerma-Usabiaga’s poster on pRF fitting methods! For our development of these tools, we’re very interested to hear you want in these tools. Please fill out our questionnaire: forms.gle/fx5UMs1362jv...
docs.google.com
pRF fitting toolbox wish list
With this form we are taking stock of the field's wishes when it comes to pRF fitting software implementations. We will be presenting the results from this form in our kick-off meeting, and will use t...
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Reposted by Tomas Knapen
Kevin Gaughen 🇺🇸 @gaughen.bsky.social · 15/03/2025
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Gary Marcus @garymarcus.bsky.social · 16/12/2024
𝘗𝘦𝘳𝘴𝘰𝘯, 𝘴𝘵𝘢𝘯𝘥𝘪𝘯𝘨 𝘰𝘯 𝘵𝘩𝘦 𝘣𝘦𝘢𝘤𝘩 𝘥𝘰𝘪𝘯𝘨 𝘺𝘰𝘨𝘢, 𝘴𝘵𝘢𝘯𝘥𝘪𝘯𝘨 𝘰𝘯 𝘰𝘯𝘦 𝘧𝘰𝘰𝘵, 𝘸𝘪𝘵𝘩 𝘰𝘯𝘦 𝘩𝘢𝘯𝘥 𝘰𝘯 𝘵𝘩𝘦 𝘨𝘳𝘰𝘶𝘯𝘥, 𝘤𝘰𝘯𝘵𝘰𝘳𝘵𝘦𝘥 𝘪𝘯 𝘢𝘯 𝘶𝘯𝘶𝘴𝘶𝘢𝘭 𝘢𝘯𝘥 𝘤𝘩𝘢𝘭𝘭𝘦𝘯𝘨𝘪𝘯𝘨 𝘱𝘰𝘴𝘦, 𝘸𝘩𝘪𝘭𝘦 𝘤𝘰𝘯𝘵𝘦𝘮𝘱𝘭𝘢𝘵𝘪𝘯𝘨 𝘵𝘩𝘦 𝘪𝘥𝘦𝘢 𝘵𝘩𝘢𝘵 𝘨𝘦𝘯𝘦𝘳𝘢𝘵𝘪𝘷𝘦 𝘈𝘐 𝘩𝘢𝘴 “𝘸𝘰𝘳𝘭𝘥 𝘮𝘰𝘥𝘦𝘭𝘴”
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Hans Op de Beeck @hansopdebeeck.bsky.social · 13/12/2024
A thread motivated by a new paper on body representations in the human brain at a fine-grained (multi-unit) level, spearheaded by J Garcia Ramirez, T Theys, and P Janssen, where I was a small part of a bigger collaboration that also included S Bracci, R Murty and @nancykanwisher.bsky.social. 1/n
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Tomas Knapen @tknapen.bsky.social · 03/12/2024
Since I need a first bsky post, here's a rehash of @nickhedger.bsky.social's thread announcing our preprint with Kendrick Kay & Thomas Naselaris. TLDR; High-level visual cortex is tiled with maps 'multiplexing' vision and touch. tinyurl.com/seesoma 🧵 1/n
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