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Tim Lawn

@timlawn.bsky.social
172 followers 206 following 38 posts

Neuromodulatory systems | Networks | Multimodal neuroimaging Wellcome Early Career Fellow at University of Oxford 🇬🇧 Previously @MGHMartinos @KCL timlawn.github.io/

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Reposted by Tim Lawn
Arman Behrad @armanbehrad.bsky.social · 22/09/2026
How do internal states shape foraging, decisions, and adaptation in a changing world? 🧠🌍 @clairesturgill.bsky.social and I are organizing a #BernsteinConference satellite workshop bringing together lab and wild perspectives on adaptive behavior. Join us 😉
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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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Imaging Brainstem Health | COST Action 24118 @ca24118.bsky.social · 14/09/2026
Many of our members extended their stay in Innsbruck after our General Meeting to attend the Locus Coeruleus Meeting @lcmeeting.bsky.social Great showcase of our community’s work across talks & posters 📊, plus an intro to our COST Action! Many thanks to the organizers!
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Imaging Brainstem Health | COST Action 24118 @ca24118.bsky.social · 04/09/2026
💡 Meet Working Group 5: Brainstem Clinic Led by Christian Lambert, WG5 is connecting fundamental brainstem research with clinical applications. Find out more: www.uibk.ac.at/en/projects/... #Brainstem #Neuroanatomy #Neuroimaging #COSTAction #ImagingBrainstemHealth
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Biyu Jade He @biyuhe.bsky.social · 01/09/2026
📣 My lab at NYU currently has two open post-doc positions. We are interested in understanding perception, thinking, and hallucinations. We employ a range of cutting-edge techniques in human neuroscience (e.g., 7T fMRI, MEG, iEEG/DES) and computational approaches (e.g., DNN modeling).
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Imaging Brainstem Health | COST Action 24118 @ca24118.bsky.social · 01/09/2026
💡 Meet Working Group 2: Brainstem Imaging Led by Evgeniya Kirilina, WG2 works on advancing and establishing best practices for brainstem neuroimaging. Find out more: www.uibk.ac.at/en/projects/... #Brainstem #Neuroanatomy #Neuroimaging #COSTAction #ImagingBrainstemHealth
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Paul Taylor @afni-pt.bsky.social · 31/08/2026
Have you ever felt like something was missing from your #fmri results? Have you been worried about potential reproducibility issues? Well, this new @natmethods.nature.com article with 40+ coauthors shows how the simple change to transparent thresholding helps both. Go Figure! rdcu.be/B4tikBETdQZa
A comparison of old and new thresholding approaches for fMRI data. The newer, transparent thresholding allows for interpreting context, more complete modeling, a reduction of biases and an increase in meaningful content. This all leads to more accurate interpretations and improved reproducibility evaluations.
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Martin Hebart @martinhebart.bsky.social · 24/08/2026
I have been meaning to write a post about a preprint that I'm pretty excited about: www.biorxiv.org/content/10.6... In neuroscience we often assume that we can learn something general about “the brain” using different species. But is this true? Do monkeys even see the world the way we do?
On the left, an image of a rhesus macaque looking towards its left, and on the right, an AI-generated zoomed-out rendering of a human in the same pose. Both are looking.
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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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Romy Lorenz @romy-lorenz.bsky.social · 21/08/2026
Please share widely! 🚀 I am recruiting a PhD student for an exciting cross-species collaborative project using layer fMRI to investigate how interoception shapes cognitive control - Application deadline is: 1.10.2026 - Start: Jan 2027 www.mpg.de/26934670/phd...
mpg.de
PhD Position (m/f/d) | Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
PhD Position in Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
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AJ Simon @ayejaysimon.bsky.social · 19/08/2026
Excited to announce that my paper on modeling individualized disordered circuit patterns and linking them to clinical phenotypes is now up on Biorxiv! www.biorxiv.org/content/10.6...
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Bita Moghaddam @bita137.bsky.social · 19/08/2026
During psychedelic state context shapes brain dynamics www.nature.com/articles/s41...
nature.com
Psychedelics align brain activity with context - Nature
The psychedelic psilocybin reorganizes brain activity into structured, context-aligned patterns that integrate internal and external processing, providing a neural basis for the felt continuity betwee...
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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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Konstantina Kilteni @kkilteni.bsky.social · 12/08/2026
Thrilled to see our paper @nathumbehav.nature.com, led by the brilliant (Bsky-less) PhD student Ziliang Xiong from @erc.europa.eu project #TicklishHuman! We asked: -Is human ticklishness shared across cultures? -Can we explain where on the body we are ticklish? 🧵👇 www.nature.com/articles/s41...
nature.com
Human ticklishness is a widespread, culturally shared and bodily organized sensory experience - Nature Human Behaviour
Ticklishness is a familiar but poorly understood experience. Xiong and Kilteni show that ticklishness is culturally shared and follows a distinct bodily topography. They evaluate different theories on...
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Alex Fornito @alexfornito.bsky.social · 31/07/2026
Our latest out now in @natneuro.nature.com led by @trangcao.bsky.social looking at the reproducibility of MRI morphometry phenotypes in psychiatric disorders. Paper: www.nature.com/articles/s41... Thread: x.com/TrangCao2016...
nature.com
The cross-site reproducibility of MRI morphometric phenotypes in psychiatric disorders - Nature Neuroscience
A large analysis of MRI studies in five psychiatric disorders reveals that maps of brain volume differences in psychiatric illness are rarely reproducible, highlighting the need for alternative approa...
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Reza Shadmehr @rezashadmehr.bsky.social · 28/07/2026
If an action results in error, each neuron requires an individualized teaching signal that guides change in its output. This is the credit assignment problem of learning. Are there neurons in the brain that can compute such a sophisticated teaching signal? Yes. www.biorxiv.org/content/10.6...
biorxiv.org
Climbing fibers encode the gradient of a loss function for the cerebellum
Neurons in the brain are often many synapses away from motoneurons, yet if a movement results in error, each distant neuron needs a teacher that considers its specific contribution to production of th...
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Cell Reports @cp-cellreports.bsky.social · 12/07/2026
Compositional recombination is facilitated by a distributed cortico-cerebellar network
dlvr.it
Compositional recombination is facilitated by a distributed cortico-cerebellar network
Tan et al. demonstrate that flexible human cognition relies on two distinct neural processes: specialized brain regions that handle specific task components, and a distributed cortico-cerebellar network that recombines these components. This finding indicates that the cortico-cerebellar network serves an important role in coordinating complex, generalized cognition across different contexts.
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Neuroskeptic @neuroskeptic.bsky.social · 24/07/2026
"Replay occurs in the dorsal striatum during offline consolidation of a procedural memory in mice" - even with total hippocampal lesions pubmed.ncbi.nlm.nih.gov/42493550/ It looks like memory replay is a general capability of the brain - not a special feature of the hippocampus!
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Desmond Oathes, PhD @desmondoathes.bsky.social · 23/07/2026
Looking for a data analyst with good MRI skills and coding background 💻🧠👩‍🔧. Sorry but visa sponsorship isn't an option. Kindly re-post! Apply here: wd1.myworkdaysite.com/recruiting/u...
wd1.myworkdaysite.com
Data Technician
University Overview The University of Pennsylvania, the largest private employer in Philadelphia, is a world-renowned leader in education, research, and innovation. This historic, Ivy League school co...
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Trends in Neurosciences @cp-trendsneuro.bsky.social · 24/07/2026
'Brain rhythms of depression: A predictive processing perspective' by Andreas Strube @astrube.bsky.social & Diego Pizzagalli @diegopizzagalli.bsky.social www.cell.com/trends/neuro...
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Asa Farahani @asafarahani.bsky.social · 23/07/2026
“Cerebral vasculature shapes the spatial patterning of brain metastases” Note: Systemic metabolic factors should be incorporated into the assessment of patient-level brain metastatic risk. Now available at: www.biorxiv.org/content/10.6...
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Andrea Luppi, PhD @loopyluppi.bsky.social · 21/07/2026
1/ What can resting-state neuroimaging offer cognitive and translational neuroscience🧠? Turns out: a lot! 🧵 Long in the making, short in the reading: “Unlocking spontaneous cognition in the age of data science" is out now in @natrevneuro.nature.com rdcu.be/ftWBh
rdcu.be
Unlocking spontaneous cognition in the age of data science
Nature Reviews Neuroscience - Spontaneous brain activity is experimentally unconstrained. Embracing this freedom unlocks rich opportunities beyond task-based and naturalistic paradigms, the...
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Eiko Fried @eikofried.bsky.social · 16/07/2026
If you are considering a Marie Curie for the September deadline that fits in the lab (depression, measurement, time-series, complex systems, history of psychiatry), please don't hesitate to send me an email if you'd like to work with me :).
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Daniel Bor @daniel-bor.bsky.social · 16/07/2026
We've just published a small opinion piece in Nature Reviews Neuroscience, arguing for the under-estimated utility of resting state neuroimaging data, given exciting new methods to analyse it. Work led by @loopyluppi.bsky.social www.nature.com/articles/s41...
nature.com
Unlocking spontaneous cognition in the age of data science - Nature Reviews Neuroscience
Spontaneous brain activity is experimentally unconstrained. Embracing this freedom unlocks rich opportunities beyond task-based and naturalistic paradigms, the traditional Herculean pillars of constra...
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Toby Wise @tobywise.bsky.social · 13/07/2026
Excited to be heading to #cpconf in New Haven and looking forward to what looks like a really brilliant programme! We have some exciting new work being presented by our brilliant students and postdocs 👇👇👇
A plane at an airport
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Tiago Peixoto @tiago.skewed.de · 08/07/2026
Good news everyone! 🎉 The new version 3.0 of graph-tool is just out with major improvements! See below. graph-tool.skewed.de graph-tool is a comprehensive and efficient Python library to work with networks, including structural, dynamical, and statistical algorithms, as well as visualization. 1/N
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Andrea Costantino @costantinoai.bsky.social · 12/11/2025
Super excited to share a new preprint! We asked a simple-but-big question: What changes in the brain when someone becomes an expert? Using chess ♟️ + fMRI 🧠 + representational geometry & dimensionality 📈, we ask: 1️⃣ WHAT information is encoded? 2️⃣ HOW is it structured? 3️⃣ WHERE is it expressed? 1/n
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Loïc Labache @loiclabache.cpesr.fr · 12/04/2025
🚨 New #preprint: The molecular and cellular underpinnings of human brain lateralization 🔗 doi.org/10.1101/2025... 🧠 We identify an acetylcholine-norepinephrine axis underlying functional lateralization, along with mitochondrial and cellular correlates. 🧵1/9👇 #neuroskyence
doi.org
The molecular and cellular underpinnings of human brain lateralization
Hemispheric specialization is a fundamental characteristic of human brain organization, where most individuals exhibit left-hemisphere dominance for language and right-hemisphere dominance for visuosp...
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Tim Lawn @timlawn.bsky.social · 02/07/2026
If you're interested in imaging the brainstem and haven't already joined this COST action working group you're missing out... 👀
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Imaging Brainstem Health | COST Action 24118 @ca24118.bsky.social · 02/07/2026
Great to see our COST Action Imaging Brainstem Health members at @ohbmofficial.bsky.social in Bordeaux, with excellent posters and symposia on brainstem research. Want to join us? www.uibk.ac.at/en/projects/... #OHBM2026 #Brainstem #Neuroimaging #Neuroscience #COSTAction #ImagingBrainstemHealth
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Sidhant Chopra @sidchop.bsky.social · 29/06/2026
🧠 New work showing prominent and widespread 𝘪𝘯 𝘷𝘪𝘷𝘰 pre-synaptic terminal reductions in people with schizophrenia.🧠 nature.com/articles/s41... Strongest effects in left hemisphere, but synaptic loss didn't track with MRI grey matter alterations, but did align with..👇1/4
nature.com
Widespread synaptic density loss in schizophrenia follows molecular and network architecture - Molecular Psychiatry
Molecular Psychiatry - Widespread synaptic density loss in schizophrenia follows molecular and network architecture
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Liz Siefert @lizsiefert.bsky.social · 29/06/2026
New preprint! We show low arousal states promote hippocampal ripple genesis in sleep and wake. This bridges rodent work, where ripples predominate during sleep, with human studies reporting ripples during active behavior, identifying low arousal as a common mechanism www.biorxiv.org/content/10.6...
biorxiv.org
Arousal state modulates human hippocampal ripples
Hippocampal ripples are transient, high-frequency oscillations linked to memory replay and consolidation. Ripples are well-characterized in rodents to occur during periods of behavioral inactivity (i....
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Marcella Montagnese @mmontagnese.bsky.social · 25/06/2026
Looking forward to joining a fantastic panel to talk about dementia research!
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Tim Lawn @timlawn.bsky.social · 24/06/2026
🚨 New paper 🚨 Did you ever wonder if the spatial similarity of receptor PET maps matters for their use in molecular-informed fMRI analyses? Here we systematically investigate this. 🧵
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Peter Kok @peterkok.bsky.social · 24/06/2026
I am recruiting a postdoctoral researcher and a PhD student, funded by a new ERC grant. The grant focuses on the role of the hippocampus in visual perception, using 7T fMRI (hippocampal subfields, cortical layers) and MEG+iEEG. The intended start dates for both positions are in early 2027. 🧠🟦 1/3
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Charlie Wilson @crewilson.bsky.social · 23/06/2026
New preprint from the team - what's the role of frontal cortex - LPFC & MCC - in learning about progress towards goals? Data from the checking project collected by Fred Stoll. New analyses by Xiaoqi Xu. With Matteo di Volo, Manu Procyk, & skytorial from @nilskolling.bsky.social below
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cjl2007.bsky.social @cjl2007.bsky.social · 22/06/2026
Happy to share that our paper on objective quality assessment for "precision" fMRI is now out in @cp-neuron.bsky.social A recap of what it does, what's new since the preprint, and code you can run on your own data. cell.com/neuron/fullt...
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Charley Wu @thecharleywu.bsky.social · 20/06/2026
Look how far we've come in just a few years! We're fast as well! It turns out, recruiting reviewers is much easier when they're not being used as free labor for massively profitable publishers Support free-to-publish and Open Access science by submitting to Open Mind today! direct.mit.edu/opmi
direct.mit.edu
Open Mind | MIT Press
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Quirin Gehmacher @quiringehmacher.bsky.social · 16/06/2026
New preprint w/ @akalt.bsky.social, Juliane Schubert, Nathan Weisz, & @clarepress.bsky.social 🎉 Predictive-brain accounts treat "prediction error" as one signal. We find it's two jobs, in two dissociable systems. And one of them you can watch in the pupil, as people listen to a story. 🧵 (1/9)
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Imaging Neuroscience @imagingneurosci.bsky.social · 19/06/2026
New paper in Imaging Neuroscience by Massimiliano Facca, Alessandra Bertoldo, et al: Glucose metabolism echoes long-range temporal correlations in the human brain doi.org/10.1162/IMAG...
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Jonathan Birch @birchlse.bsky.social · 17/06/2026
How do other animals experience time? It's been a pleasure to work with @singhal.bsky.social and @anilseth.bsky.social on a paper exploring how temporal illusions and other experimental strategies can shed light on this. It's our today! www.cell.com/trends/cogni...
A figure highlighting several ways of exploring how animals experience time: apparent motion, change blindness, continuity illusions, attentional blink, perceptual rivalries, the flash lag illusion, the peripheral drift illusion.
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Imaging Neuroscience @imagingneurosci.bsky.social · 17/06/2026
Our first Impact Factor is 3.0 — an important milestone for a new journal. As with most new journals, the first IF is affected by the smaller publication volume in the launch year. Latest citation data are encouraging, and the journal’s IF is set to rise in 2027.
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Shervin Safavi @neuroprinciplist.bsky.social · 09/06/2026
1/11 Happy to share our TICS paper on using the flexibility of one of the most basic cognitive functions, perception, to understand one of the most complex cognitive dysfunctions, psychiatric conditions (also my first formal work in computational psychiatry 🎉) 📄: www.cell.com/trends/cogni... 🧵 : 👇
cell.com
Perceptual multistability: a multifaceted window into brain dysfunctions
Perceptual multistability, observed across species and sensory modalities, offers valuable insights into numerous cognitive functions and dysfunctions. For instance, differences in temporal dynamics a...
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Imaging Neuroscience @imagingneurosci.bsky.social · 14/06/2026
We are delighted to announce that Shella Keilholz will shortly become the Editor-in-Chief of Imaging Neuroscience, following the selection process described in our Author Guide. Steve Smith is stepping down as EiC after serving for three years, following the transition from NeuroImage.
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Tim Lawn @timlawn.bsky.social · 13/06/2026
I'll be presenting two posters at OHBM this week - come say hi! [0510] Spatial collinearity constrains multivariate molecular enriched network estimation ↳ Monday & Tuesday [1985] Locus Coeruleus Connectivity Confers Cognitive Resilience in Preclinical Alzheimer’s Disease ↳ Wednesday & Thursday
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Caterina Gratton @caterinagratton.bsky.social · 11/06/2026
How can we acquire new knowledge and skills on a daily basis while remaining the same person? I'm excited to share our new preprint led by @hyejinjadelee.bsky.social & Ally Dworetsky tackling this question, just in time for #OHBM2026: doi.org/10.64898/202... 🧵👇 #neuroskyence #PsychSciSky
doi.org
Functional brain organization is stable within individuals across years
Brain regions exhibit dynamic yet highly coordinated activity patterns that form large-scale functional networks measurable through resting-state correlations. While their association with fluctuating...
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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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Jan R. Wessel @janw.bsky.social · 12/06/2026
Here's a bit of unusual work on error processing and error awareness from our lab, which we've been working on off and on for around eight years: www.biologicalpsychiatrycnni.org/article/S245... Details in thread
biologicalpsychiatrycnni.org
Pupil dilation indexes – but does not causally influence – conscious error detection: a double-blind, placebo-controlled investigation of performance-monitoring using atomoxetine.
Conscious error detection is accompanied by error-related changes in phasic autonomic activity. This autonomic response is diminished in older age – accompanied by impairments in the conscious detecti...
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Kris Jensen @kristorpjensen.bsky.social · 11/06/2026
It has been super fun to work on this, where we learned that: 1) Mouse PFC is needed for model-based override of habits. 2) Separate PFC populations encode a 'policy' and the current 'value'. 3) The policy and value codes alternate theta sweeps towards the goal. ...and much much more!
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realjoshsiegel.bsky.social @realjoshsiegel.bsky.social · 10/06/2026
Excited to see this out in PNAS. A fabulous project by Adam Pines and the Williams lab: across psychedelics (LSD, Psilo, MDMA), species, and datasets, a very consistent story—reduced propagation of activity into the default mode network (DMN). Congrats Adam! 🧠🍄 www.pnas.org/doi/10.1073/...
pnas.org
Psychedelics disrupt hierarchical cortical propagations in the default mode network of humans and mice | PNAS
Psychedelic drugs are poised to become mainstream treatments, yet we lack a circuit-level account of how they reshape brain activity. Emerging evid...
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