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Bart Larsen

@bart-larsen.bsky.social
1.1K followers 749 following 10 posts

Assistant Professor at University of Minnesota Masonic Institute for the Developing Brain Developmental neuroscience, neuroimaging, modeling 📈🧠

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Reposted by Bart Larsen
Steven Meisler @stevenmeisler.com · 15h
There are many MRI approaches for studying myelin. But which ones are reliable, how do they relate to each other, and how do they behave in gray vs white matter? In our new preprint, we introduce Myelin Imaging Reliability and ReprOducibility Resource (MIRROR) 🧠🪞 📄🔗 www.biorxiv.org/content/10.6...
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Bart Larsen @bart-larsen.bsky.social · 03/09/2026
Woohoo! Congratulations @valeriejsydnor.bsky.social !!!
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Bene Ramirez @benediktramirez.bsky.social · 23/08/2026
Excited to share our new preprint introducing Precision Confidence Mapping (PCM), a framework for estimating how confident we should be in individualized functional network assignments from resting-state fMRI. Why does this matter for precision neuromodulation? 🧵👇 www.biorxiv.org/content/10.6...
biorxiv.org
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Ahmad Beyh @ahmadbeyh.bsky.social · 24/08/2026
⚠️ Preprint alert ⚠️ How does the brain's fixed anatomy support flexible function? We explore this using recurrent neural networks with increasing levels of brain-like constraints, comparing them to empirical fMRI activity. (1/8) www.biorxiv.org/content/10.6...
biorxiv.org
Geometric constraints and cognitive inputs jointly shape emergent brain dynamics and topology
How the brain's physical geometry gives rise to its flexible functional repertoire remains a central question in neuroscience. Here, we trained three classes of recurrent neural networks (RNNs) on a w...
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Ashley Watts @ashleylwatts.bsky.social · 09/07/2026
Excited to share a paper recently accepted at Nature Mental Health! 😄 For decades, we've assumed that covariance among psychopathology informs comorbidity. What if we’ve been wrong?
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Holly Sullivan-Toole @hollysully.bsky.social · 12/07/2026
🚨 preprint alert !!! Emotional and physical abuse have dissociable impacts on punishment learning and task engagement during adolescence osf.io/preprints/ps...
Plots showing that (A) emotional abuse blunts the development of punishment learning rate and (B) physical abuse blunts the development of task engagement
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Evan Gordon @gordonneuro.bsky.social · 22/04/2026
I always assumed that brain function had to line up with cytoarchitectonics. It turns out I was wrong. Human cortex, especially PFC, is tiled by chains of functional patches that subdivide and interlink architectonic areas into parallel processing streams. www.biorxiv.org/content/10.6...
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Bart Larsen @bart-larsen.bsky.social · 21/04/2026
Another fresh preprint from the lab! Menarche marks an inflection point for female brain and mental health trajectories. This milestone may identify a critical window for screening. This is an effect you don't need stats to see (though we did those too). Led by @carinaheller.bsky.social 🧵👇
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Carina Heller, Ph.D. @carinaheller.bsky.social · 21/04/2026
🚨Preprint Alert 🧠 Our new preprint „Menarche onset is an inflection point for mental health and brain development“ is now online! 👉 Preprint available here: www.biorxiv.org/content/10.6...
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Bart Larsen @bart-larsen.bsky.social · 21/04/2026
Very excited to announce our new preprint, led by @hollysully.bsky.social, that presents, benchmarks, and validates a method to estimate brain iron content from routine fMRI scans! It comes complete with a BIDS app! Check out the preprint and thread below! doi.org/10.64898/202...
biorxiv.org
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Thomas Yeo @bttyeo.bsky.social · 02/04/2026
Updated preprint: doi.org/10.1101/2025... We have improved DELSSOME and showed that we can accelerate the estimation of two new biophysical models. By collating 12,005 individuals, we derive normative trajectories of cortical E/I ratio across the lifespan ...
doi.org
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Audrey Luo @audreycluo.bsky.social · 02/03/2026
We think of white matter as the highways of the brain. But when we followed development along those highways, we were surprised. The journey is more complex than we thought. My final PhD paper, “Two Axes of White Matter Development”, is now out in @natcomms.nature.com! 🛣️🧠✨ 🔗 bit.ly/wm2axes
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John Holbein @johnholbein1.bsky.social · 08/01/2026
“These findings provide clear evidence that data collected on MTurk simply cannot be trusted.”
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Holly Sullivan-Toole @hollysully.bsky.social · 07/01/2026
New paper & a thread on the results 👇 ‘Reward-specific learning parameters change across normative adolescent development and are blunted in youth with high risk for depression’ acamh-onlinelibrary-wiley-com.ezp3.lib.umn.edu/doi/full/10....
screenshot of article title & author team
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Joëlle Bagautdinova @joelleba.bsky.social · 05/01/2026
Ever wondered how white matter tracts actually map onto the cortical hierarchy and cognition—beyond the usual “projection vs association” labels? Our new preprint tackles exactly that! 🧠✨ doi.org/10.64898/202... Thread below 🧵
doi.org
Anatomical White Matter Tracts Span the Cortical Hierarchy to Support Cognitive Diversity
Long-range white matter (WM) tracts support cognition by enabling communication between distant cortical regions, which are organized along a hierarchy defined by the sensorimotor-to-association (S-A)...
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Bart Larsen @bart-larsen.bsky.social · 18/12/2025
Very happy to share our paper on the "summer slide" in kid's cognitive test scores is out now in @pnas.org! We find a replicable dip in performance across multiple domains of cognition in >23,000 kids across 4 datasets! Check out the 🧵 from @ariellekeller.bsky.social below! 👇
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Cleanthis Michael @clmich.bsky.social · 01/12/2025
Excited to share our new review “Mapping interactions between adversity and neuroplasticity across development” in @cp-trendscognsci.bsky.social. We discuss how experience - particularly adversity - interacts with neuroplasticity during human development authors.elsevier.com/c/1mB5U4sIRv...
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Daeyeol Lee @ungteoriz.bsky.social · 02/12/2025
Department of Psychological & Brain Sciences at Johns Hopkins is inviting applications for 3 open-rank tenured/tenure-track positions in (1) Behavioral Neuroscience, (2) Cognitive Neuroscience, and (3) Cognitive Psychology. pbs.jhu.edu/about/jobs/
pbs.jhu.edu
Jobs | Psychological & Brain Sciences
Tenured/Tenure-track position in Cognitive Psychology Open Date Dec 01, 2025 Salary Range or Pay Grade The expected academic base salary range for this position is $110,000- $144,500 (Assistant Profes...
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Gang Chen @gangchen6.bsky.social · 18/11/2025
Is the “standard workflow” holding back fMRI analysis? Mass-univariate analysis is still the bread-and-butter: intuitive, fast… and chronically overfitted. Add harsh multiple-comparison penalties, and we patch the workflow with statistical band-aids. No wonder the stringency debates never die.
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Bart Larsen @bart-larsen.bsky.social · 12/11/2025
I can't recommend this fantastic new review from @valeriejsydnor.bsky.social enough! It does an amazing job of synthesizing the current state of the literature and then looking forward to provide a fresh perspective on how to move this work forward in humans. Check it out!
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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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Thomas Lin Pedersen @thomasp85.com · 11/09/2025
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN. It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package. Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
tidyverse.org
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
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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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Bart Larsen @bart-larsen.bsky.social · 09/07/2025
This paper truly exemplifies what is possible in the modern era of neuroimaging data. A beautiful and extremely impressive piece of work from @valeriejsydnor.bsky.social that was a treat to contribute to. Check it out!
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Damien Fair @drdamienfair.bsky.social · 29/06/2025
OK, It is not just the HBCD release... docs.hbcdstudy.org It’s the ABCD Release time too! docs.abcdstudy.org nbdc-datahub.org That means the ABCC 3.0.0 is live!!! The largest release yet from the ABCD-BIDS Community Collection. This is going to be fun!! 👇 Let’s dig in.
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Arielle Keller @ariellekeller.bsky.social · 22/04/2025
Excited to share that our paper is now in press at the British Journal of Psychiatry! Looking forward to presenting our work this Friday at #SOBP2025 in our symposium: "Does one size fit all? Subgroup Modeling of Brain-Behavior Relationships in Psychiatry" 🧠 #neuroskyence #neuroimaging #psychscisky
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Thomas Yeo @bttyeo.bsky.social · 11/04/2025
While the world burns, we cook up a new preprint! doi.org/10.1101/2025... Biophysical modeling is a key tool to derive mechanistic insights into the brain. These models are governed by biologically meaningful parameters (unlike artificial neural networks), but the dirty secret ... 1/N
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Bart Larsen @bart-larsen.bsky.social · 29/04/2025
Awesome opening salvo from the lab of @lindenmp.bsky.social!! Super cool work that will stem many future directions!
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Natalie Christie Peluso 🧠 @nataliepeluso.com · 01/04/2025
Age-related differences in 1/f aperiodic EEG/MEG signals can be driven by cardiac rather than brain activity 👇 #interoception 🧠🫀 #neuroskyence elifesciences.org/reviewed-pre...
elifesciences.org
Age-related changes in “cortical” 1/f dynamics are linked to cardiac activity
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Alexandria Ocasio-Cortez @aoc.bsky.social · 22/03/2025
Tonight an unbelievable **34,000 people** gathered for our Denver rally to take on billionaires and win our country back. This was the largest political gathering in Denver since Obama in 2008. Also bigger than the 2024 DNC. And the largest ever rally in Bernie’s career (and obviously, mine too).
AOC and Bernie in front of the rally crowd in DenverZoomed out crowd shot of 34,000 people in downtown Denver with Colorado mountains in the background
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Audrey Luo @audreycluo.bsky.social · 20/03/2025
We think of white matter as the brain's highways—uniform conduits between cortices. But what if we study development along tracts? Turns out the journey matters as much as the cortical destination! We're thrilled to share “Two Axes of White Matter Development” www.biorxiv.org/content/10.1... 1/n
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Russ Poldrack @russpoldrack.org · 08/02/2025
Great analysis of the indirect cost rate announcement by @stuartbuck.bsky.social
open.substack.com
Indirect Costs at NIH . . .
I wasn’t planning on spending part of a Saturday writing about cost accounting principles and the like, but NIH-world was hit with a doozy of a policy announcement on Friday night:
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Marc Coutanche @marccoutanche.bsky.social · 08/02/2025
For those who don't know, here are very real research costs that directs cannot cover - all fall within indirects: the buildings we work in (upkeep, maintenance, cleaning, etc), utilities, IT infrastructure, human resources, administrative staff, security, and lots more
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Julia Moser @drjuliamoser.bsky.social · 10/01/2025
Finally out in its polished form 🤩 New methodological avenues that help facilitate looking at individual brain functional organization in developmental populations 👶🧠
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Parker Singleton @parkersingleton.bsky.social · 10/01/2025
Psychedelic mental health research is booming—but how do we keep up with rapidly evolving evidence? 🌱 Our team proposes a living evidence synthesis approach to ensure clinicians, policymakers, and the public have access to the latest, most reliable data. 🔗 www.nature.com/articles/s44... 🧪🧵
nature.com
An initiative for living evidence synthesis in clinical psychedelic research - Nature Mental Health
Renewed interest in psychedelics as treatments for mental disorders has recently emerged, but substantial challenges remain in obtaining evidence from available data to inform clinical decision-making...
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Rick Betzel @richardfbetzel.bsky.social · 03/12/2024
hey -- i'm hiring a postdoc! the ad will be up shortly, but looking for someone with network neuroscience experience (very broadly). the position isn't tied to any specific project/grant, so lots of flexibility in terms of what you'd actually *do*. hmu if you might be interested/want to learn more!
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Kaidi Kang @kaidikang.bsky.social · 28/11/2024
Thank you, Dr. Fair! It was really a rewarding experience for me to collaborate with your team from #MIDB! @drdamienfair.bsky.social @tervoclemmensb.bsky.social @bart-larsen.bsky.social Thank you for all your efforts and expertise you put into this work; they truly made this work better!
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Damien Fair @drdamienfair.bsky.social · 27/11/2024
Congratulations @kaidikang.bsky.social et al on their paper in Nature. Also proud of the team at #MIDB in the support! @tervoclemmensb.bsky.social @bart-larsen.bsky.social and more! If you are interested in optimizing study designs, take a look, it's a great read! www.nature.com/articles/s41...
nature.com
Study design features increase replicability in brain-wide association studies - Nature
Optimizing study design is critical for increasing standardized effect sizes and replicability, and the features that increase replicability in cross-sectional and longitudinal brain-wide association ...
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PennLINC @pennlinc.bsky.social · 22/11/2024
We're excited to release new versions of our BIDS-Apps for processing and analyzing #dmri data, QSIPrep and QSIRecon! Our team has been working hard to prepare these pipelines to process infant data and bring them in line with the @nipreps.bsky.social ecosystem. #neuroimaging #nipreps #bids 1/10
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Brenden Tervo-Clemmens @tervoclemmensb.bsky.social · 21/11/2024
👏👏👏 @ariellekeller.bsky.social et al. with cyclical GAMs, multi-dataset replication, and study planning relevance!
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Bart Larsen @bart-larsen.bsky.social · 21/11/2024
Very happy with how this one turned out! This started as a curiosity, that built into a side project, and eventually into a very cool paper! This was also super fun to work on with @ariellekeller.bsky.social! Check out her thread below and the preprint here: osf.io/preprints/ps...
osf.io
OSF
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Arielle Keller @ariellekeller.bsky.social · 18/11/2024
Super excited to share our official ACORN Lab website!! 🍁🧠 appliedcognitionlab.psychology.uconn.edu We are recruiting new team members at the undergraduate, graduate, and postdoctoral levels - join us! #Neuroskyence #neuroimaging #PsychSciSky #CogPsyc #ClinPsych #CogDev #devpsy #CogSci
appliedcognitionlab.psychology.uconn.edu
Home | Applied Cognition and Personalized Neuroscience Lab
Welcome to the Applied Cognition & Personalized Neuroscience Lab!   The Applied Cognition and peRsonalized Neuroscience (ACORN) lab is a collabora ...
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Shematologist, MD @shematologist.medsky.social · 19/11/2024
Just your regular reminder that ~40% of menstruating adolescents (and likely an even higher proportion of adults) suffer from iron deficiency and yet we don’t universally screen. tinyurl.com/JAMAFe
tinyurl.com
Prevalence of Iron Deficiency and Iron-Deficiency Anemia in US Females Aged 12-21 Years, 2003-2020
This study examines prevalence of iron deficiency among females aged 12 to 21 years to inform future screening strategies for iron deficiency and iron-deficiency anemia.
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Bart Larsen @bart-larsen.bsky.social · 04/01/2024
🧠💡Postdoc opportunity! Interested in: 📈Adolescent neurodevelopment 🧲7T neuroimaging 🧬Biological influences on brain dev Join our team at UMN MIDB to investigate the interplay between iron, neurodevelopment, and mental health in adolescence! To apply: hr.myu.umn.edu/jobs/ext/359...
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