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Florian Mahner

@florianmahner.bsky.social
40 followers 22 following 0 posts

PhD Candidate at Vision and Computational Cognition Group. 🔗 florianmahner.com 💻 github.com/florianmahner

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Reposted by Florian Mahner
Martin Hebart @martinhebart.bsky.social · 25/09/2026
What is the nature of universal representations in AI models, and what determines whether they emerge? Our paper accepted at #neurips2026 led by @florianmahner.bsky.social & @rothj.bsky.social addressed these questions comparing 162 vision models, with intriguing results. arxiv.org/abs/2605.13675 🧵
arxiv.org
Characterizing Universal Object Representations Across Vision Models
Deep neural networks trained with different architectures, objectives, and datasets have been reported to converge on similar visual representations. However, what remains unknown is which visual prop...
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Marcel Binz @marcelbinz.bsky.social · 18/09/2026
📢 The CORE COGNITION lab (core-cognition.github.io) is looking to hire another PhD student, working on automated scientific discovery and knowledge representation in cognitive science. Starting date: March to September 2027. 🙏 Please share widely!
core-cognition.github.io
CORE COGNITION
CORE COGNITION works towards a unified theory of human cognition, instantiated in models that simulate, predict, and explain human behavior.
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Steve Fleming @smfleming.bsky.social · 16/09/2026
📖 New review out today in @natrevneuro.nature.com: Towards an integrative neuroscience of metacognition 🧠🧪 Full-text link to the paper is here: rdcu.be/9YK3mF7dYhFa
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Momchil Tomov @momchiltomov.bsky.social · 02/09/2026
Excited to share that our paper on explainable AI for autonomous driving is out today in @nature.com! Super proud to have been part of this amazing collaboration between Motional and MIT! Details in the 🧵
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Tal Golan @talgolanneuro.bsky.social · 28/08/2026
How can we design experiments that make computational models disagree? One section of our new @natrevneuro.nature.com Review with @kriegeskorte.bsky.social and @heikoschuett.bsky.social examines studies that used stimulus sets designed to elicit distinct predictions from competing models. 1/16
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Andrew Lampinen @lampinen.bsky.social · 14/08/2026
New position piece w/ @tylerbonnen.bsky.social out now in COBS! We suggest that data augmentation is a useful framework for understanding hippocampal contributions to generalization, and offers a path towards more precise modeling: 1/
Data augmentation as a framework for modeling hippocampal contributions to generalization
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Sander van Bree @sandervanbree.bsky.social · 12/08/2026
Excited to share our preprint! w/ @martinhebart.bsky.social To understand how primates visually process objects in the world, we rely on both research in human and macaque IT. But what representations of object space are actually shared between them? biorxiv.org/content/10.6... Quick thread 🧵
biorxiv.org
Shared and Distinct High-Dimensional Object Spaces in Human and Macaque Inferotemporal Cortex
Human and macaque studies of inferotemporal cortex (IT) have shaped our understanding of object vision, yet the extent of their representational alignment and the precise nature of this correspondence...
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Thomas Serre @thomasserre.bsky.social · 21/07/2026
📢 We're recruiting! 18-month postdoc in civic science & AI-human interaction @BrownUniversity, hosted by ARIA (NSF AI Institute). Bridge computational brain science with community engagement & public impact. Apply by Aug 1: apply.interfolio.com/188112
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Eric Schulz @ericschulz.bsky.social · 21/07/2026
We are looking for a postdoctoral researcher who wants to innovate at the intersection of cognitive science, neuroscience, and machine learning. 📍Munich 📅Flexible start: 10/2026–03/2027 ⏳Full consideration by 14/08/2026 💼Funded for 2 years, extension possible Discover, grow, collaborate, eat cake.
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Martin Hebart @martinhebart.bsky.social · 17/05/2026
I'm proud to say we are releasing LAION-fMRI, a densely sampled 7T fMRI dataset of natural images, with very broad stimulus sampling for testing countless hypotheses and for deeply exploring brain representations. The dataset is now available at laion-fmri.hebartlab.com What does LAION-fMRI offer? 🧵
laion-fmri.hebartlab.com
LAION-fMRI - a 7T fMRI dataset of human vision
LAION-fMRI (LfMRI / LAION MRI dataset): 5 subjects, 25,052 launch-release natural images, 165 acquired 7T fMRI sessions with single-trial GLMsingle betas, retinotopy, localizers, and diffusion.
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SueYeon Chung @sueyeonchung.bsky.social · 10/02/2026
Our paper is out in @natneuro.nature.com! www.nature.com/articles/s41... We develop a geometric theory of how neural populations support generalization across many tasks. @zuckermanbrain.bsky.social @flatironinstitute.org @kempnerinstitute.bsky.social 1/14
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lucakaemmer.bsky.social @lucakaemmer.bsky.social · 26/01/2026
Finally out in eLife!! "Early foveal cortex predicts the features of saccade targets through feedback from higher cortical areas." elifesciences.org/articles/107...
elifesciences.org
Feedback of peripheral saccade targets to early foveal cortex
Low-level features of peripheral saccade targets are fed back to early foveal retinotopic cortex in a signal that resembles activation elicited by direct foveal presentation.
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Reposted by Florian Mahner
Davide Cortinovis @davidecortinovis.bsky.social · 21/12/2025
Now in press at Nature Communications! www.nature.com/articles/s41... Check it out if you are interested in category selectivity, the organization of visual cortex, and topographic models!
nature.com
Investigating action topography in visual cortex and deep artificial neural networks - Nature Communications
This study shows that interaction with objects is an important dimension that shapes the way object categories such as hands and tools are organized in visual cortex and shows that artificial neural n...
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Mick Bonner @mickbonner.bsky.social · 11/12/2025
Dimensionality reduction may be the wrong approach to understanding neural representations. Our new paper shows that across human visual cortex, dimensionality is unbounded and scales with dataset size—we show this across nearly four orders of magnitude. journals.plos.org/ploscompbiol...
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Sander van Bree @sandervanbree.bsky.social · 04/12/2025
New preprint w/ Malin Styrnal & @martinhebart.bsky.social Have you ever computed noise ceilings to understand how well a model performs? We wrote a clarifying note on a subtle and common misapplication that can make models appear quite a lot better than they are. osf.io/preprints/ps...
osf.io
OSF
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Sander van Bree @sandervanbree.bsky.social · 02/12/2025
New Correspondence with @davidpoeppel.bsky.social in Nat Rev Neurosci. www.nature.com/articles/s41... Here, we critique a recent paper by Rosas et al. We argue that "Bottom-up" and "Top-down" neuroscience have various meanings in the literature. PDF: rdcu.be/eSKYI
nature.com
Top-down and bottom-up neuroscience as collections of practices - Nature Reviews Neuroscience
Nature Reviews Neuroscience - Top-down and bottom-up neuroscience as collections of practices
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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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Martin Hebart @martinhebart.bsky.social · 04/11/2025
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026. The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social. Please apply here until Nov 25: www.uni-giessen.de/de/ueber-uns...
View from your office onto Giessen and surrounding villages.
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Umut Güçlü @umguec.bsky.social · 25/06/2025
🚨 Our new paper is out in @natmachintell.nature.com! 🤔 Deep neural nets (DNNs) often align with humans in performance and even representations — but do they "think" like us? 📄 “Dimensions underlying the representational alignment of deep neural networks with humans”
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Martin Hebart @martinhebart.bsky.social · 23/06/2025
What makes humans similar or different to AI? In a paper out in @natmachintell.nature.com led by @florianmahner.bsky.social & @lukasmut.bsky.social, w/ Umut Güclü, we took a deep look at the factors underlying their representational alignment, with surprising results. www.nature.com/articles/s42...
nature.com
Dimensions underlying the representational alignment of deep neural networks with humans - Nature Machine Intelligence
An interpretability framework that compares how humans and deep neural networks process images has been presented. Their findings reveal that, unlike humans, deep neural networks focus more on visual ...
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Lenny van Dyck @levandyck.bsky.social · 18/06/2025
How is high-level visual cortex organized? In a new preprint with @martinhebart.bsky.social & @kathadobs.bsky.social, we show that category-selective areas encode a rich, multidimensional feature space 🌈 www.biorxiv.org/content/10.1... #neuroskyence 🧵 1/n
biorxiv.org
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Martin Hebart @martinhebart.bsky.social · 15/04/2025
Proud to announce our primer on "Ten principles for reliable, efficient, and adaptable coding in psychology and cognitive neuroscience" www.nature.com/articles/s44... This primer is for beginners to get started, advanced programmers to improve, and PIs. #psychology #psychsci #cogsci #neuroskyence
nature.com
Ten principles for reliable, efficient, and adaptable coding in psychology and cognitive neuroscience - Communications Psychology
Programming is essential for modern research in neuroscience and psychology, but it can quickly become a source of frustration and error. This Primer introduces ten practical principles guiding resear...
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Laura M. Stoinski @laurastoinski.bsky.social · 01/04/2025
Curious about how people differentiate object words and how their mental representations compare to object images? Come check out my poster (F148) today at CNS! laurastoinski.com/website/Post... @martinhebart.bsky.social
laurastoinski.com
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Kalanit Grill-Spector @kalanitgs.bsky.social · 21/03/2025
Excited to share on my first post on Bluesky our new paper in NHB examine the innate and developing aspects of the wiring of the visual system. Congratulations to @emilykubota.bsky.social and the baby MRI team on this important work
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Martin Hebart @martinhebart.bsky.social · 14/03/2025
I wrote a commentary on a very nice paper that just appeared in @brain1878.bsky.social by @selmalugtmeijer.bsky.social, Sobolewska, de Haan & @neurosteven.bsky.social. Spoiler: It's about modularity in mid-level vision. 🤓 Original paper: doi.org/10.1093/brai... Commentary: doi.org/10.1093/brai...
doi.org
How modular are modules in visual cortex?
This scientific commentary refers to ‘Visual feature processing in a large stroke cohort: evidence against modular organization’ by Lugtmeijer, Sobolewska
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