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Marvin Petersen

@petersenm.bsky.social
132 followers 309 following 69 posts

Neuroimaging • Networks • Nature Postdoc at Vascular Cognitive Impairment Lab, UMC Utrecht

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Reposted by Marvin Petersen
Alex Fornito @alexfornito.bsky.social · 19/08/2026
Not sure how to visualise your connectome data? Check our latest led by @m-gajwani.bsky.social & C Adamson on NeuroMarvl: an open source web-based platform for visualising and sharing connectomes! Paper: tinyurl.com/2t7ftu9d Software: tinyurl.com/yrv3xja3 @nsb-lab.bsky.social
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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 · 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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Michael Fox @foxmdphd.bsky.social · 25/06/2026
Is brain circuit targeted TMS better than standard clinical TMS for treating depression? New study led by Joe Taylor @braincircuits.bsky.social out today in @jamapsychiatry.com says yes! Connectivity- vs Scalp-Based Targeting of Accelerated TMS for Depression jamanetwork.com/journals/jam...
jamanetwork.com
Connectivity- vs Scalp-Based Targeting of Accelerated TMS for Depression
This randomized clinical trial estimates the effect size of connectivity- vs scalp-based targeting of accelerated transcranial magnetic stimulation for treatment-resistant depression.
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Itai Yanai @itaiyanai.bsky.social · 18/06/2026
Where do ideas come from? We founded the Night Science Institute with the mission of training in the creative scientific process every early-career scientist in the world. Help us to spread the word with this clip! www.youtube.com/watch?v=0c1V... @nightsciencepod.bsky.social
youtube.com
Night Science Institute - our story
YouTube video by Night Science Institute
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Frauke Beyer @fraukeb.bsky.social · 17/06/2026
Excited to present my poster "Genetic determinants of white matter hyperintensitiy spatial patterns" today at the #OHBM2026 Come by my poster to learn about a pragmatic approach to WMH spatial patterns and which genes may be involved 📌 #2733 🕐 12.45-13.45 h @institutvbhi.bsky.social
A page describing the background, methods and results of the project on "Genetic determinants of white matter hyperintensity spatial patterns". See abstract on OHBM page for more infos
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Network Stimulation Institute @netstim.org · 15/06/2026
We are excited! #OHBM2026 – three @netstim.org papers by Aysu Sahin, Patricia Zvarova & Maike Mustin! 👇👇
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Marvin Petersen @petersenm.bsky.social · 17/06/2026
Happy to share Lacuna, an open-source Python toolbox for brain lesion analysis. If you have lesion segmentation data (e.g., for infarcts, tumors) and want to know which brain regions and circuits it links to, it's built for you. lacuna-py.readthedocs.io #neuroskyence #OHBM2026
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Badr AlKhamissi @bkhmsi.bsky.social · 16/06/2026
🚨 New Preprint! 🧠 We gave an AI model one simple rule: rearrange your neurons so that nearby ones respond alike. We never told it what a face, a voice, or a sentence was. It grew brain-like maps for all three anyway. 🧵👇 🌐 Website: topo-omni.epfl.ch
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Marvin Petersen @petersenm.bsky.social · 14/06/2026
Excited to share our work at #OHBM2026! Come by poster 0198 to chat about lesion network mapping, predictive modeling and post-stroke cognitive impairment. 📍 Mon June 15, 14:45–15:45 📍 Tue June 16, 13:30–14:30 @ohbmofficial.bsky.social @ohbmtrainees.bsky.social
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Scott Marek @smarek0502.bsky.social · 11/06/2026
What matters most for childhood brain organization? We analyzed 649 variables. The answer: Socioeconomics (SES); with brain patterns pointing at sleep & stress as drivers. Even brain-IQ associations were better explained by SES. In Science today: www.science.org/doi/10.1126/...
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Michael Fox @foxmdphd.bsky.social · 10/06/2026
Can lesion network mapping predict survival in children with brain tumors? Collaboration with UCL and @braincircuits.bsky.social in @nature.com suggests the answer is yes. Cutting the tumor off from this network may provide survival benefit. www.nature.com/articles/s41...
nature.com
A prognostic human brain network for diffuse midline glioma - Nature
Tumour network mapping of diffuse midline glioma (DMG) defines a conserved and prognostically important brain network in children with DMG, consistent with the hypothesis that DMGs exploit otherw...
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Marvin Petersen @petersenm.bsky.social · 02/06/2026
New paper out in @ frontiersin.bsky.social 🧠 In 40,579 adults across two cohorts (HCHS, #ukbiobank), we show that "biological brain aging" on MRI links to poorer cognition & motor function — and mediates the link between vascular risk and functional decline. #neuroskyence #dementia #aging
doi.org
Frontiers | Biological brain aging, cognitive-motor decline and vascular risk: a multivariate imaging analysis of 40,579 individuals
IntroductionAge-related declines in cognitive and motor functions show highly variable trajectories. To better understand the underlying mechanisms, we inves...
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Marvin Petersen @petersenm.bsky.social · 02/06/2026
New paper out in @jimd-editors.bsky.social. In children with CLN2 disease — a form of childhood dementia — we show that brain atrophy on MRI tracks each child's clinical decline, making brain scans a promising tool to monitor treatment of this devastating, ultra-rare disorder. #pediatrics
doi.org
Mapping Clinical Progression to Brain Atrophy in CLN2 Patients Under Cerliponase Alfa Treatment: A Prospective Neuroimaging Study
Neuronal ceroid lipofuscinosis type 2 (CLN2) disease, a lysosomal storage disorder, causes early childhood psychomotor regression, vision loss, seizures, and rapid progressive gray matter loss. Howev...
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Marvin Petersen @petersenm.bsky.social · 02/06/2026
New paper out in The Lancet @ebiomedicine.bsky.social on the oral–brain axis 🦷🧠. Does the bacterial community living in our gum pockets relate to brain health? In 1,026 people from the population-based PAROMIND cohort, we show the answer is yes. 🧵 #neuroskyence #microbiome #dementia
thelancet.com
Subgingival microbiota composition is associated with brain health in the general population–the PAROMIND study
These findings from a large cohort advance the understanding of the oral microbiome–brain axis, highlighting specific microbial profiles linked to subclinical cognitive, structural, and inflammatory b...
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Thomas Yeo @bttyeo.bsky.social · 21/05/2026
In a meta-analysis of 210 biomedical AI studies that statistically compared models under cross-validation, 97% used invalid statistical tests. Here's our new preprint doi.org/10.64898/202... led by @tianchu.bsky.social @hetuli.bsky.social @shaoshiz.bsky.social @nichols.bsky.social 1/N
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Andreas Horn @andreashorn.org · 13/05/2026
Fantastic new tool to manage stimulation parameters and outcome scores in a machine readable and standardized fashion – a big step toward reproducibility in the field of DBS imaging! 👇👇
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Leon Lotter @leondlotter.de · 07/05/2026
My most recent and biggest work so far is finally out as a preprint! 🧠🧵 *Linking human brain functional connectivity to underlying neurotransmission* doi.org/10.64898/202... 1/n TL;DR below ↓ #neuroskyence #neuroimaging #MedSky #PsySciSky
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The Transmitter @thetransmitter.bsky.social · 17/04/2026
A wave of new papers discuss the merits and limitations of lesion network mapping. #neuroskyence By @avaskham.bsky.social www.thetransmitter.org/brain-imagin...
thetransmitter.org
‘Overdue’ debate unfurls over neuroimaging method
After a January paper questioned the validity of an approach called lesion network mapping, its users are pressure testing their results.
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Siawoosh Mohammadi @siawooshmr.bsky.social · 03/04/2026
1/9 New preprint by Laurin Mordhorst: 3D histology validates 2D histology for axon radius distributions and conduction velocities. We asked: if individual axons vary along their length, can classic 2D histology still reflect white-matter organization? Link: www.biorxiv.org/content/10.6...
biorxiv.org
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Jessica Royer @jroyer.bsky.social · 03/04/2026
Correlating brain maps across datasets is everywhere in neuroimaging. Here we ask: when you contextualize a brain map against genes, metabolism, or connectivity... What can you really conclude? How can we do better? We explore these questions here: tinyurl.com/2dudkevc
tinyurl.com
Opportunities and pitfalls of data contextualization in neuroimaging - Nature Reviews Neuroscience
Despite rapid exploitation of the opportunities that contextualization of brain maps affords, potential limitations have received little attention. In this Roadmap, Royer et al. provide practical guid...
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Marvin Petersen @petersenm.bsky.social · 01/04/2026
The LNM debate keeps developing. www.nature.com/articles/s41... @andrewzalesky.bsky.social @natneuro.nature.com #neuroskyence
nature.com
Null models for lesion network mapping - Nature Neuroscience
Van den Heuvel et al. show that lesion-network mapping (LNM)-derived circuits converge across disorders and argue that this convergence reflects a fundamental methodological limitation of LNM. We eval...
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Bratislav Misic @misicbata.bsky.social · 17/03/2026
Organization of neuropeptide systems in the human brain | doi.org/10.1038/s415... Neuropeptides are functionally diverse signaling molecules in the brain and body. @cebric.bsky.social curates an atlas of neuropeptide receptors and relates it to brain function @natneuro.nature.com 🧩 🧠 ⤵️
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Martin Gell @martingell.bsky.social · 11/03/2026
🚨 New preprint alert! 🚨 Transdiagnostic latent factor models of psychopathology are widely assumed to improve brain-behaviour associations. So we decided to test this directly and found that they don't. A short 🧵 Link: www.biorxiv.org/content/10.6... 1/10
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Caroline Nettekoven @carobellum.bsky.social · 10/03/2026
🧠 Resting-state fMRI is often treated as the gold standard for studying the brain’s intrinsic organization. But is it actually the best way to estimate functional architecture? We tested this directly. 🧵1/8
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Toomas Erik Anijärv @teanijarv.bsky.social · 02/03/2026
I couldn't find a tool to plot different #neuroimaging data in one consistent style, so I made one! Meet yabplot (yet another brain plot) - a #Python package for (sub)cortex & tracts.🧠 - Simple API - Built-in atlases - Custom atlas support 🔗 github.com/teanijarv/ya... (drop a ⭐️!)
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ᴅʀ. ᴍᴏᴡɪɴᴄᴋᴇʟ'ꜱ @drmowinckels.io · 28/02/2026
neuromapr 0.2.1 has been accepted and published on CRAN! Very excited to get this out to users in the simplest way possible, and hope the #rstats #neuroimaging community finds it useful! lcbc-uio.github.io/neuromapr/
lcbc-uio.github.io
Spatial Null Models and Transforms for Brain Map Comparison
Implements spatial null models and coordinate-space transformations for statistical comparison of brain maps, following the framework described in Markello et al. (2022)…
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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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Michael Fox @foxmdphd.bsky.social · 26/02/2026
A recent paper in @natureportfolio.nature.com raised concerns about the lesion network mapping method. Our team of 16 coauthors analyzed >1000 lesions and 34 symptoms and found that "The methodological foundations of lesion network mapping remain sound" www.biorxiv.org/content/10.6...
biorxiv.org
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ELLIS unit Jena @ellisunitjena.bsky.social · 10/02/2026
📢 DGKN 2026: Congress for Clinical Neurosciences with Continuing Education Academy 📅on 25 February 2026, Prof. Dr. Thomas Wolfers will present a talk titled: “𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗮𝗻𝗱 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 𝘁𝗼 𝗣𝗮𝗿𝘀𝗲 𝗜𝗻𝗱𝗶𝘃𝗶𝗱𝘂𝗮𝗹 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲𝘀” @thomaswolfers.bsky.social #DGKN2026 #ClinicalNeuroscience #BigData #ML
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Marvin Petersen @petersenm.bsky.social · 23/02/2026
New preprint: Revisiting the methodological foundation of lesion network mapping. doi.org/10.64898/202... A thread.
doi.org
Revisiting the methodological foundation of lesion network mapping
Lesion network mapping (LNM) links focal brain lesions to distributed neural circuits by projecting lesion locations through a normative functional connectome. van den Heuvel and colleagues recently s...
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Andreas Horn @andreashorn.org · 20/02/2026
"You see what you look for, and you look for what you know." We are proud to release FOCUS: a 100 μm deformable human subcortical atlas precisely registered to MNI space. www.biorxiv.org/content/10.6...
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Annie G. Bryant @anniegbryant.bsky.social · 27/01/2026
The extended version of my thesis procrastination project/subcortex visualization package is out now in both Python and R, now that I’ve graduated 🤠 This figure shows the 9 atlases included (and counting)! Preprint: www.biorxiv.org/content/10.6... Website: anniegbryant.github.io/subcortex_vi...
Nine subcortical/cerebellar atlases included in the subcortex_visualization Python package (and subcortexVisualizationR package in R). The atlases are depicted in two-dimensional vector graphic format.
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Bratislav Misic @misicbata.bsky.social · 18/12/2025
netneurotools: a trainee-oriented approach to network neuroscience | doi.org/10.1101/2025... Our lab’s internal toolkit for accomplishing everyday tasks in brain imaging ⤵️
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Boris Bernhardt @borismontreal.bsky.social · 17/12/2025
🍤 hippocampus = the brain's memory machine 🍤 unique cytoarchitecture, highly connected with multiple networks, & very variable across individuals video shows hippocampal shape variations across 250-ish young HCP adults study hippocampus with open tools like hippomaps doi.org/10.1038/s415...
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Siawoosh Mohammadi @siawooshmr.bsky.social · 06/12/2025
1/ Our new paper is out in Imaging Neuroscience! 🎉 We validated in-vivo MRI–based axon radius mapping by comparison to large-scale human brain histology (> 46 M axons & 35 CC-ROIs). Title: “MRI-scale histology validates spatial sensitivity of in-vivo MRI-based axon radius estimation”
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Matt Cieslak @cieslakmatt.bsky.social · 11/11/2025
After years of development and testing, we are happy to present our work in "Diffusion MRI Processing in the HEALthy Brain and Child Development Study: Innovations and Applications"! www.biorxiv.org/content/10.1.... A thread:
biorxiv.org
Diffusion MRI Processing in the HEALthy Brain and Child Development Study: Innovations and Applications
The landmark ongoing HEALthy Brain and Cognitive Development (HBCD) study will longitudinally chart brain development in a large sample (projected n=7,200) of infants through age 10 years with multimo...
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Marvin Petersen @petersenm.bsky.social · 22/10/2025
Excited to share our new study, “Mapping the Association of Cerebral Small Vessel Disease, Gray Matter Integrity, and Cognitive Function”, now published in Neurology. Paper: www.neurology.org/doi/10.1212/... Editorial: www.neurology.org/doi/10.1212/...
neurology.org
Mapping the Association of Cerebral Small Vessel Disease, Gray Matter Integrity, and Cognitive Function | Neurology
Background and ObjectivesCerebral small vessel disease (CSVD) is associated with an increased risk of cognitive impairment and dementia. While its impact on white matter is well documented, CSVD-relat...
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Boris Bernhardt @borismontreal.bsky.social · 02/10/2025
🚨 New paper in Nature Methods: HippoMaps: multiscale cartography of the human hippocampus Open-source tools & data to explore structure and function of the 🍤🧠 (histology, in/ex vivo MRI, iEEG) Led by @jordandekraker.bsky.social docs: hippomaps.readthedocs.io paper: doi.org/10.1038/s415...
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Russ Poldrack @russpoldrack.org · 16/09/2025
This great piece by @addyosmani.bsky.social resonates strongly with my recent experience using AI coding agents
addyo.substack.com
The 70% problem: Hard truths about AI-assisted coding
A field guide and why we need to rethink our expectations
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The Viking (Gunnar Blohm) @gunnarblohm.bsky.social · 13/09/2025
www.nature.com/articles/d41...
nature.com
AI chatbots are already biasing research — we must establish guidelines for their use now
The academic community has looked at how artificial-intelligence tools help researchers to write papers, but not how they distort the literature scientists choose to cite.
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jeanette-mumford.bsky.social @jeanette-mumford.bsky.social · 12/09/2025
Do you ever wish you could just use python to pull together the files and code for running FSL's randomise? Me too! I made this: github.com/jmumford/ran... It will even replace the numbers in the file outputs with contrast names of your choosing (and replace corrp with 1minusp).
github.com
GitHub - jmumford/randomise-prep: Generate design matrices, contrasts, and scripts to set up FSL randomise analyses.
Generate design matrices, contrasts, and scripts to set up FSL randomise analyses. - jmumford/randomise-prep
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Imaging Neuroscience @imagingneurosci.bsky.social · 05/09/2025
Launched in 2023, Imaging Neuroscience is now firmly established, with full indexing (PubMed, etc.) and 700 papers to date. We're very happy to announce that we are able to reduce the APC to $1400. Huge thanks to all authors, reviewers, editorial team+board, and MIT Press.
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Marvin Petersen @petersenm.bsky.social · 27/08/2025
Great new article by Matthijs Biesbroek and the Meta VCI Map Consortium now published in Stroke. "Signature White Matter Hyperintensity Locations Associated With Vascular Risk Factors Derived From 15 653 Individuals" www.ahajournals.org/doi/full/10....
ahajournals.org
Signature White Matter Hyperintensity Locations Associated With Vascular Risk Factors Derived From 15 653 Individuals | Stroke
BACKGROUND: White matter hyperintensities (WMHs) of presumed vascular origin are common in the elderly and are associated with vascular risk factors. There is evidence that vascular risk factors, in p...
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Andreas Horn @andreashorn.org · 22/08/2025
🚨 New preprint out! 🚨 “Translating the Transcriptome: A Connectomics Approach for Gene-Network Mapping and Clinical Application” 🔗 doi.org/10.1101/2025...  🧵 A short thread:
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Rick Betzel @richardfbetzel.bsky.social · 11/08/2025
I've been thinking a lot about the preprint in terms of my own career. I grew up academically in computational labs. My papers were abstract early on and they only got more abstract as I progressed. The model was: find a new exciting mathematical tool. Apply it to brain imaging data. Write it up. 1/
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Damien Fair @drdamienfair.bsky.social · 10/08/2025
I still get chills Meet Mike *30+ years severe depression *first hospitalized @ 13y *20 meds *3 rounds of ECT *2 near-fatal suicide attempts Mike felt joy for the first time in decades after we turned on his new brain pacemaker or PACE see videos, read paper, follow thread doi.org/10.31234/osf...
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Bratislav Misic @misicbata.bsky.social · 04/08/2025
Integrating and interpreting brain maps | doi.org/10.1016/j.ti... Imaging and recording technologies make it possible to map multiple biological features of the brain. How can these features be conceptually integrated into a coherent understanding of brain structure and function? ⤵️
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Yingtian (David) Tang @davidtyt.bsky.social · 30/07/2025
🧠 NEW PREPRINT Many-Two-One: Diverse Representations Across Visual Pathways Emerge from A Single Objective www.biorxiv.org/content/10.1...
biorxiv.org
Many-Two-One: Diverse Representations Across Visual Pathways Emerge from A Single Objective
How the human brain supports diverse behaviours has been debated for decades. The canonical view divides visual processing into distinct "what" and "where/how" streams – however, their origin and inde...
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Matt Perich @mattperich.bsky.social · 29/07/2025
Check out our new review/perspective (w/ @juangallego.bsky.social & Devika Narain) on neural manifolds in the brain! It was a lot of fun to think through these ideas over the past couple of years, and I'm excited it's finally out in the world! 🔗: www.nature.com/articles/s41... 📄: rdcu.be/ex8hW
nature.com
A neural manifold view of the brain - Nature Neuroscience
Recent advances in neuroscience have revealed how neural population activity underlying behavior can be well described by topological objects called neural manifolds. Understanding how nature, nurture...
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