@storrisi.bsky.social
{f,s,d}MRI Research Scientist @ SFVA + UCSF
Reposted
Excited to share our new work in @natcomms.nature.com: Functional network collapse in neurodegenerative disease
How does functional connectivity change across dementia types and stages?
www.nature.com/articles/s41...
How does functional connectivity change across dementia types and stages?
www.nature.com/articles/s41...
Functional network collapse in neurodegenerative disease - Nature Communications
This study demonstrates that brain functional network imbalance appears linked to progressive brain atrophy and cognitive decline across the dementia spectrum.
www.nature.com
November 25, 2025 at 5:17 PM
Excited to share our new work in @natcomms.nature.com: Functional network collapse in neurodegenerative disease
How does functional connectivity change across dementia types and stages?
www.nature.com/articles/s41...
How does functional connectivity change across dementia types and stages?
www.nature.com/articles/s41...
Reposted
After 25 years of living with essential tremor, one UCSF patient picked up a spoon & didn't spill a drop! With the help of Drs. Doris Wang & Leo Sugrue, focused ultrasound treatment gave him back everyday moments & confidence. #EssentialTremor
Watch:
Watch:
Focused Ultrasound Treatment for Essential Tremor | UCSF Neurosurgery
Focused ultrasound (FUS) — also called high-intensity focused ultrasound (HIFU) — is a noninvasive treatment that uses sound waves to treat essential tremor and tremor-dominant Parkinson's disease.…
www.youtube.com
November 19, 2025 at 7:10 PM
After 25 years of living with essential tremor, one UCSF patient picked up a spoon & didn't spill a drop! With the help of Drs. Doris Wang & Leo Sugrue, focused ultrasound treatment gave him back everyday moments & confidence. #EssentialTremor
Watch:
Watch:
We had a collab at a scanner without video capabilities, so it was fun to reach into my music background and create a flexible paced audio experiment for fMRI finger tapping. github.com/samtorrisi/m... Let me know if you give it a shot. SC is an easy install:
misc_scripts/supercollider at main · samtorrisi/misc_scripts
scripts from grad school, postdoc and beyond. Contribute to samtorrisi/misc_scripts development by creating an account on GitHub.
github.com
November 17, 2025 at 10:55 PM
We had a collab at a scanner without video capabilities, so it was fun to reach into my music background and create a flexible paced audio experiment for fMRI finger tapping. github.com/samtorrisi/m... Let me know if you give it a shot. SC is an easy install:
Reposted
New AFNI Academy playlist!
This tutorial presents afni_proc.py's quality control HTML for single subject FMRI.
The APQC HTML has systematic views of data and useful derived quantities. Users can instantly rate, comment and query the fully processed subject data.
www.youtube.com/watch?v=hD9z...
This tutorial presents afni_proc.py's quality control HTML for single subject FMRI.
The APQC HTML has systematic views of data and useful derived quantities. Users can instantly rate, comment and query the fully processed subject data.
www.youtube.com/watch?v=hD9z...
November 17, 2025 at 8:15 PM
New AFNI Academy playlist!
This tutorial presents afni_proc.py's quality control HTML for single subject FMRI.
The APQC HTML has systematic views of data and useful derived quantities. Users can instantly rate, comment and query the fully processed subject data.
www.youtube.com/watch?v=hD9z...
This tutorial presents afni_proc.py's quality control HTML for single subject FMRI.
The APQC HTML has systematic views of data and useful derived quantities. Users can instantly rate, comment and query the fully processed subject data.
www.youtube.com/watch?v=hD9z...
Reposted
Shearer et al. introduce an interactive web application for exploring fMRI effect maps:
doi.org/10.52294/001...
@halleeshearer.bsky.social @sneuroble.bsky.social @ohbmossig.bsky.social
#OpenDatasets #SpecialIssue
doi.org/10.52294/001...
@halleeshearer.bsky.social @sneuroble.bsky.social @ohbmossig.bsky.social
#OpenDatasets #SpecialIssue
November 12, 2025 at 6:41 PM
Shearer et al. introduce an interactive web application for exploring fMRI effect maps:
doi.org/10.52294/001...
@halleeshearer.bsky.social @sneuroble.bsky.social @ohbmossig.bsky.social
#OpenDatasets #SpecialIssue
doi.org/10.52294/001...
@halleeshearer.bsky.social @sneuroble.bsky.social @ohbmossig.bsky.social
#OpenDatasets #SpecialIssue
Reposted
What a fantastic 2025 Erwin L. Hahn Lecture & Workshop! Did you enjoy it as much as we did?
If you’d like to rewatch Larry Wald’s keynote “MR technology; from elegant physics to elegant engineering and back again” (or missed it), find it here:
hahn-institute.de/en/info/even...
#HahnLecture25
If you’d like to rewatch Larry Wald’s keynote “MR technology; from elegant physics to elegant engineering and back again” (or missed it), find it here:
hahn-institute.de/en/info/even...
#HahnLecture25
October 31, 2025 at 9:26 AM
What a fantastic 2025 Erwin L. Hahn Lecture & Workshop! Did you enjoy it as much as we did?
If you’d like to rewatch Larry Wald’s keynote “MR technology; from elegant physics to elegant engineering and back again” (or missed it), find it here:
hahn-institute.de/en/info/even...
#HahnLecture25
If you’d like to rewatch Larry Wald’s keynote “MR technology; from elegant physics to elegant engineering and back again” (or missed it), find it here:
hahn-institute.de/en/info/even...
#HahnLecture25
Reposted
We wrote a blog post about common misconceptions of basic EPI parameters.
Test your knowledge of EPI myths. layerfmri.com/epimyths/ 1/3
Test your knowledge of EPI myths. layerfmri.com/epimyths/ 1/3
November 4, 2025 at 9:28 PM
We wrote a blog post about common misconceptions of basic EPI parameters.
Test your knowledge of EPI myths. layerfmri.com/epimyths/ 1/3
Test your knowledge of EPI myths. layerfmri.com/epimyths/ 1/3
Reposted
A word that has become a euphemism for promoting and selling things without data or evidence
November 2, 2025 at 6:19 PM
A word that has become a euphemism for promoting and selling things without data or evidence
Reposted
New paper in Imaging Neuroscience by Marc-Antoine Fortin, Pål Erik Goa, et al:
GOUHFI: A novel contrast- and resolution-agnostic segmentation tool for ultra-high-field MRI
doi.org/10.1162/IMAG...
GOUHFI: A novel contrast- and resolution-agnostic segmentation tool for ultra-high-field MRI
doi.org/10.1162/IMAG...
October 26, 2025 at 4:42 AM
New paper in Imaging Neuroscience by Marc-Antoine Fortin, Pål Erik Goa, et al:
GOUHFI: A novel contrast- and resolution-agnostic segmentation tool for ultra-high-field MRI
doi.org/10.1162/IMAG...
GOUHFI: A novel contrast- and resolution-agnostic segmentation tool for ultra-high-field MRI
doi.org/10.1162/IMAG...
FWIW: our group collects a lot of highly-accelerated fMRI at 3T and 7T; as you know the single band reference images have a ton more contrast than the accelerated data. However, I've never once needed to use them because afni_proc does so well with alignment and blip-up/down distortion correction.
October 23, 2025 at 4:55 PM
FWIW: our group collects a lot of highly-accelerated fMRI at 3T and 7T; as you know the single band reference images have a ton more contrast than the accelerated data. However, I've never once needed to use them because afni_proc does so well with alignment and blip-up/down distortion correction.
Reposted
Since I can’t work my day job, I’m back to my side gig. 7 handmade dichroic stained glass brains up for grabs tonight at 7pm EST at www.brainedglass.com
October 22, 2025 at 10:02 PM
Since I can’t work my day job, I’m back to my side gig. 7 handmade dichroic stained glass brains up for grabs tonight at 7pm EST at www.brainedglass.com
hey MRI-ers: 5+ mins of detail about this detail! no but srsly good to know this exists youtu.be/SPNPZJingZA?...
Fitting Foam Earplugs
YouTube video by aearoweb
youtu.be
October 14, 2025 at 11:19 PM
hey MRI-ers: 5+ mins of detail about this detail! no but srsly good to know this exists youtu.be/SPNPZJingZA?...
Reposted
A lot of people think that every international student admitted means one fewer spot for domestic students, when the opposite is more likely true - the tuition revenue international students bring allows public universities to provide substantial discounts to domestic students, improving access.
September 29, 2025 at 8:18 PM
A lot of people think that every international student admitted means one fewer spot for domestic students, when the opposite is more likely true - the tuition revenue international students bring allows public universities to provide substantial discounts to domestic students, improving access.
tempting youtube.com/watch?v=DC2p...
There's a new Linux distro in town for developers...
YouTube video by Fireship
youtube.com
September 24, 2025 at 8:06 PM
tempting youtube.com/watch?v=DC2p...
Reposted
New preprint from stellar IRTG PhD student Amelie Rauland + team on white matter bundle reconstruction! Shows that WM bundles can be reliably extracted from simple 32-direction dMRI & features predict cognition - huge potential for legacy and clinical data. Thread 👇
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
September 7, 2025 at 2:59 PM
New preprint from stellar IRTG PhD student Amelie Rauland + team on white matter bundle reconstruction! Shows that WM bundles can be reliably extracted from simple 32-direction dMRI & features predict cognition - huge potential for legacy and clinical data. Thread 👇
www.biorxiv.org/cgi/content/...
www.biorxiv.org/cgi/content/...
From a few years ago but it disappeared off yt so I recently re-uploaded. SurfLayers demo. #tbt youtu.be/Py0a8O2h-gc?...
OHBM 2021 SurfLayers abstract video
YouTube video by Sam Torrisi
youtu.be
September 4, 2025 at 7:03 PM
From a few years ago but it disappeared off yt so I recently re-uploaded. SurfLayers demo. #tbt youtu.be/Py0a8O2h-gc?...
Reposted
Our review discussing the potential use of laminar fMRI for probing the role of cortical layers in epileptic seizure propagation and spread as well as it possible future clinical applications out in Brain (well as accepted manuscript!)
academic.oup.com/brain/advanc...
academic.oup.com/brain/advanc...
The potential of laminar functional MRI in refining the understanding of epilepsy in humans
Aitken et al. highlight laminar fMRI as a tool to connect the neural effects of anti-seizure medications with the microcircuits that generate seizures in e
academic.oup.com
September 3, 2025 at 7:24 PM
Our review discussing the potential use of laminar fMRI for probing the role of cortical layers in epileptic seizure propagation and spread as well as it possible future clinical applications out in Brain (well as accepted manuscript!)
academic.oup.com/brain/advanc...
academic.oup.com/brain/advanc...
Reposted
When powering fMRI studies, sample size is king, but scan duration can also be a powerful tool, improving phenotypic prediction and cost-efficiency, a new analysis shows
By @claudia-lopez.bsky.social
#neuroskyence
www.thetransmitter.org/fmri/longer-...
By @claudia-lopez.bsky.social
#neuroskyence
www.thetransmitter.org/fmri/longer-...
Longer fMRI brain scans boost reliability—but only to a point
Around 30 minutes of imaging per person seems to be the “sweet spot” for linking functional connectivity differences to traits in an accurate and cost-effective way.
www.thetransmitter.org
August 20, 2025 at 2:17 PM
When powering fMRI studies, sample size is king, but scan duration can also be a powerful tool, improving phenotypic prediction and cost-efficiency, a new analysis shows
By @claudia-lopez.bsky.social
#neuroskyence
www.thetransmitter.org/fmri/longer-...
By @claudia-lopez.bsky.social
#neuroskyence
www.thetransmitter.org/fmri/longer-...
looks like a great resource www.ipem.ac.uk/resources/mr...
MR Advanced Acceleration Technology - IPEM
www.ipem.ac.uk
August 14, 2025 at 6:52 AM
looks like a great resource www.ipem.ac.uk/resources/mr...
Reposted
@UCLA is a global leader in research, innovation, education, and healthcare. The federal government’s $1B demand would devastate the nation’s top public research university, cut off life-saving care, and halt tech and economic growth. #StandUpForUC bit.ly/standuc
August 11, 2025 at 5:58 PM
@UCLA is a global leader in research, innovation, education, and healthcare. The federal government’s $1B demand would devastate the nation’s top public research university, cut off life-saving care, and halt tech and economic growth. #StandUpForUC bit.ly/standuc
i'm collecting a super small FOV and want a lateralized fiducial marker that's not focal like a vitamin E capsule but rather like a "strip" so it'll be present despite where I place the acquisition window. ideas? dielectric pads are too thick and obviously i wouldn't want to place only 1
August 7, 2025 at 5:04 PM
i'm collecting a super small FOV and want a lateralized fiducial marker that's not focal like a vitamin E capsule but rather like a "strip" so it'll be present despite where I place the acquisition window. ideas? dielectric pads are too thick and obviously i wouldn't want to place only 1
lovely little demo resources.nerdfirst.net/sampling.html
NERDfirst Nyquist Theorem Simulator
resources.nerdfirst.net
August 6, 2025 at 3:15 PM
lovely little demo resources.nerdfirst.net/sampling.html
Reposted
A series of talks on 7T (f)MRI from the SIEMENS UHF user meeting in Frankfurt are now online:
www.magnetomworld.siemens-healthineers.com/clinical-cor...
www.magnetomworld.siemens-healthineers.com/clinical-cor...
August 4, 2025 at 4:09 PM
A series of talks on 7T (f)MRI from the SIEMENS UHF user meeting in Frankfurt are now online:
www.magnetomworld.siemens-healthineers.com/clinical-cor...
www.magnetomworld.siemens-healthineers.com/clinical-cor...