Paul M. Thompson

Paul Thompson @ptenigma.bsky.social · 2d

..And the last term in the formula is awesome (courtesy of Andrew Duncan)

by Paul M. Thompson — Reposted by Paul M. Thompson

Paul Thompson @ptenigma.bsky.social · 2d

More Stein flow, with different kernels (bandwidth should probably be adaptive)

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Paul Thompson @ptenigma.bsky.social · 2d

🔥Today's animations
💡Both Langevin diffusion + Stein flows are ways to model + sample from a very high-dimensional distribution
(like images you are generate with generative AI)
points represent embeddings of images
💡(coming soon) you can use them to test/improve generative model calibration

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Paul Thompson @ptenigma.bsky.social · 8d

...., in theory continuous on [0,1], along which we evolve a sample via a forward / reverse SDE

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Paul Thompson @ptenigma.bsky.social · 8d

WRITING A NEW LECTURE on vision, diffusion, +surrogate transfomers (ViT/DiT/SiT) they all seem alike, with dh_t=f_θ(h_t,t)dt+σ_t dW_t; in ViT + SiT, the “time” t corresponds to "layer depth"+each residual block applies an incremental transformation; in DiT+LDM, t is an actual "diffusion time"👇🧵

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Paul Thompson @ptenigma.bsky.social · 8d

This is awesome to see ! Huge congrats, this is a wonderful project

NIH funds major study on suicide prevention using new app

Reposted by Paul M. Thompson

Jessica Turner @jessicaturnerphd.bsky.social · 9d

Why does the first time I get interviewed by the news have to be with 10 min notice, in an office with no lighting? 😆

But the nice thing is they covered the ARTEMIS project and it's picking up some steam! #science #WomenInSTEM

local12.com/health/healt...

Researchers at the National Institutes of Health have funded a significant study on suicide prevention.

local12.com

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Paul Thompson @ptenigma.bsky.social · 10d

🔥 Fun animation for an upcoming lecture.
(guess the topic) :)

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Paul Thompson @ptenigma.bsky.social · 20d

Thanks so much Jess! Yes we will record it and post it! thanks for your support, it makes it more motivating to write the talk :)

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Paul Thompson @ptenigma.bsky.social · 20d

DR JOHANNA BAYER (Radboud Univ Medical Centre) will be our guest speaker TOMORROW @11am Pacific. Please come and see us and bring your creative ideas and Qs. You are all welcome to come and please DM me so I can make sure you get in.

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Global Neuroimaging Studies with Diffusion MRI, Tractometry, and Generative AI

Paul Thompson @ptenigma.bsky.social · 22d

[4] What is diffusion MRI youtube.com/watch?v=i2jH...
[5] Generative AI and Vision Language Models youtube.com/watch?v=nCfa...
[6] Talairach Lecture youtube.com/watch?v=nPH-...

youtube.com

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A Guided Tour of AI in Neuroimaging

Paul Thompson @ptenigma.bsky.social · 22d

[1] A Guided Tour of AI in Neuroimaging youtube.com/watch?v=fOOR...
[2] same but faster and better after a lot of practice youtube.com/watch?v=o0St...
[3] ENIGMA for psychiatrists youtube.com/watch?v=YNjP... 👇👇👇👇

youtube.com

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Paul Thompson @ptenigma.bsky.social · 22d

💡💡ENIGMA 2025 End-of-Year Round-up, probably Dec 22, 12 noon PT (TBC)
*I will put the practice talks on YouTube as I have to practice each talk several times or I don't know how long it is :)💡
**yes these topics are not very related
Past talks + tutorial videos [1-6]👇👇👇👇

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Paul Thompson @ptenigma.bsky.social · 22d

🔥 "Introduction to Human Genetics & Neurogenetics for Absolute Beginners", USC Neuroscience Program, 11/18 and 11/20 (4-hour course)
💡🧨"How to Design Computer Vision and Vision-Language Models for Medical Imaging", ICVGIP25, IIT Mandi, Himachal Pradesh, 12/17-20 👇👇👇👇

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Paul Thompson @ptenigma.bsky.social · 22d

💡"ArtificiaI Intelligence in Medical Imaging & How You Can Help", USC Biomedical Engineering Dept., 10/3
🔥"Six Emerging Principles in the Global Quest to Map 30 Human Brain Diseases", National Centre for Biological Sciences (NCBS), Bangalore, India, 11/10-11 👇👇👇👇

Paul Thompson @ptenigma.bsky.social · 22d

TO NOT GO COMPLETELY CRAZY with grant writing 40 hours/week, I've decided to do some extra lectures you're very welcome to come to if you like* (thread follows): 👇👇

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Paul Thompson @ptenigma.bsky.social · 25d

Excellent vending machine at Austin airport

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Paul Thompson @ptenigma.bsky.social · 25d

#ASFNR2025 BEST PAPER awardee Shahriar Faghani (U Penn; pictured right explains how Conformal Prediction can be applied to deep-learning based brain tumor segmentation, yielding uncertainty estimates of whether image voxels contain glioma:
🎇Plenary lecture in Austin, TX today

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Paul Thompson @ptenigma.bsky.social · 25d

Thank you so much for coming ! It is a great meeting

Paul Thompson @ptenigma.bsky.social · 25d

🎇BRAIN CANCER pioneer Roger Stupp explains how SONICATION (ultrasound) can help to get cancer drugs across the blood-brain barrier -> higher concentrations of anti-cancer agents in tumor tissue
#ASFNR2025 plenary

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Reposted by Paul M. Thompson

Madalina Tivarus, PhD @madativ.bsky.social · 26d

What a treat to hear from not one, but two giants in their fields as keynote speakers at #ASFNR2025! Paul Thompson @ptenigma.bsky.social and Roger Stupp.

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Paul Thompson @ptenigma.bsky.social · 27d

Do not think of setbacks as failures. They are like stepping stones that help you on your path forward. *
* a quote I heard today on BBC radio (by 李创业医生 Dr Li Chuangye)

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Paul Thompson @ptenigma.bsky.social · 27d

👏 Thank you all who joined and to our speakers @claramoreau9.bsky.social @lauraaberner.bsky.social and Dr Caitlin Lloyd for advancing the science and hope of eating disorders research. Studies also led by
@StefanEhrlich3
and
@EstherWalton18
also highlighted below 👇👇👇

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Paul Thompson @ptenigma.bsky.social · 27d

Understanding these overlaps, and links (or otherwise) to OCD, Compulsive behaviour, and reward, is beginning to refine our models of recovery, neurobiology + fMRI-informed neuromodulation via the dorsolateral prefrontal cortex (DLPFC) and basal ganglia.

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Paul Thompson @ptenigma.bsky.social · 27d

🧠 Fantastic ENIGMA workshop on how the brain changes + can dramatically recover in eating disorders.

👇 Graphic (below) shows how eating disorders overlap:

🔵 Restricting subtype of anorexia nervosa

🟢 Avoidant/restrictive food intake disorder (ARFID)

🟡 Bulimia nervosa

🔴 Binge-eating disorder 👇

🧠 Fantastic day at our ENIGMA workshop on how the brain changes—and can dramatically recover with the right treatment—in eating disorders.
We were honoured to host Clara A Moreau , Caitlin Lloyd, Joanna Steinglass and Laura A. Berner, who shared compelling findings from the ENIGMA-Eating Disorders Working Group and their own labs' work on the brain circuitry involved in eating disorders, and their leadership in bringing together researchers worldwide to pool their expertise. Their talks highlighted how structural and functional brain changes in anorexia nervosa and binge eating disorders relate to BMI, behavior, and recovery, and highlights new directions - including TMS - as a treatment in those with eating disorders.
One striking graphic (below) shows how eating disorders overlap:
🔵 Restricting subtype of anorexia nervosa
🟢 Avoidant/restrictive food intake disorder (ARFID)
🟡 Bulimia nervosa
🔴 Binge-eating disorder
Understanding these overlaps helps refine our models of risk, recovery, neurobiology and fMRI-informed neuromodulation via the dorsolateral prefrontal cortex (DLPFC) and basal ganglia.
👏 Thank you all who joined and to our speakers for advancing the science and hope of eating disorders research.

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Paul Thompson @ptenigma.bsky.social · 29d

🔥ARE YOU INTERESTED IN ANOREXIA. EATING DISORDERS + the BRAIN? Join us 230-530pm tomorrow for a remarkable workshop with 3 world leaders in this field:
🔥What causes anorexia + binge eating?
🔥How are they treated?
🔥How does the brain respond to treatment?
DM me if you want to come. 3 Talks 👇👇

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ASFNR Keynote 2025: A Guided Tour of AI in Neuroimaging

Paul Thompson @ptenigma.bsky.social · Sep 16

OK I rehearsed it and it's 10 minutes too long, gah www.youtube.com/watch?v=o0St...

www.youtube.com

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ASFNR Keynote 2025: A Guided Tour of AI in Neuroimaging

Paul Thompson @ptenigma.bsky.social · Sep 16

Thanks Jess! Here it is - the first part you will recognise :) www.youtube.com/watch?v=o0St...

www.youtube.com