Alexander Li Cohen
@drdrxanderli.bsky.social
590 followers 640 following 140 posts
ChildNeurologist @BostonChildrens @HarvardMed. Using network imaging to understand/develop new therapies for #autism symptoms. @NIMHgov K23/@SFARIorg BTI Fellow
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drdrxanderli.bsky.social
Agreed! Which is why choosing appropriate control cohorts and comparison groups is such an important step to do before declaring that any finding a specific to your “syndrome/symptom” of interest.
drdrxanderli.bsky.social
8️⃣ Shout-out to our first author Juliana Wall, whose outstanding work brings clarity and rigor to complex neuroimaging data! 👏

9️⃣ We’re grateful to our colleagues, the many patients we partner with, and the Child Neurology Society community—advancing research together to develop new therapies!
drdrxanderli.bsky.social
7️⃣ So what’s next?
We're looking for clues in how stimulant medications used in ADHD alter brain networks in individual patients to generate new focused neuromodulatory therapies!
drdrxanderli.bsky.social
6️⃣ Yet, amidst uncertainty, the Anterior Cingulate Cortex (ACC) robustly stood out as a region implicated beyond chance and converging with parallel evidence of anatomical changes. This may hint at a critical neural target.
drdrxanderli.bsky.social
5️⃣ BUT—crucially—our analyses also found this network pattern was similar to that seen across psychiatric disorders, and that these patterns are similar to what you’d see with randomly chosen brain coordinates!
Meaning: Caution is needed before concluding specificity in coordinate mapping studies.
drdrxanderli.bsky.social
4️⃣ Indeed, we found scattered locations consistently mapped onto brain networks associated with reward processing and cognitive control (Cingulo-Opercular network).
drdrxanderli.bsky.social
3️⃣ Using Coordinate Network Mapping, we asked a new question: could these scattered brain locations converge on common brain networks—even if exact coordinates differ?
drdrxanderli.bsky.social
2️⃣ Why this study?
Do brain imaging studies on anatomical changes in ADHD consistently identify the same brain regions? Surprisingly, our meta-analysis of 38 studies found minimal spatial agreement across studies.
Reposted by Alexander Li Cohen
ahmarilab.bsky.social
🗣️Non-federal funding alert!!! Aligning Research to Impact Autism (ARIA) has a new RFA to join their IMPACT Network, a clinical-translational research effort to accelerate care for people across the spectrum by enabling rapid therapeutic development. Up to $15 million over 5 years.

bit.ly/3YRYMv3
Innovative Medicine and Precision Approaches to Clinical Trials (IMPACT) Network - GMMB-Aria: Production
bit.ly
Reposted by Alexander Li Cohen
Reposted by Alexander Li Cohen
isaiahneuro.bsky.social
Amazing work by Julian Kutsche and the many other collaborators. @drdrxanderli.bsky.social
@andreashorn.org @harvardmed.bsky.social
Reposted by Alexander Li Cohen
isaiahneuro.bsky.social
Reduced function or injury to the frontal pole may increase creativity by disengaging the self-monitoring & cognitive control actions of the frontal pole to allow novelty seeking & creativity to be unleashed. @braincircuits.bsky.social @foxmdphd.bsky.social @julianneumann.bsky.social
Reposted by Alexander Li Cohen
isaiahneuro.bsky.social
How can a brain disease increase creativity? We derive a brain circuit from creative tasks demonstrating they share reduced activity in the right frontal pole. Then we show that brain lesions & neurodegeneration that increase creativity are connected to this location
jamanetwork.com/journals/jam...
Mapping Neuroimaging Findings of Creativity and Brain Disease
This study using network mapping of meta-analytic data investigates whether creativity maps to a specific brain circuit and whether damage to that circuit aligns with creativity changes observed in pe...
jamanetwork.com
drdrxanderli.bsky.social
Great article on how methods ALWAYS frame the question more than you think…
Reposted by Alexander Li Cohen
thelablab.bsky.social
🗣️ Language is widely distributed throughout the brain 🧠

In a recent correspondence in @natrevneurosci.bsky.social, we suggest that there is no 'language network' in the brain. What appears as such is an inevitable illusion created in part by the methods we use.

www.nature.com/articles/s41...
drdrxanderli.bsky.social
Excellent resource!!!
onlyinbos.bsky.social
MIT's Career Advising and Professional Development Office has created a Career Handbook, a guide for developing the knowledge and skills you’ll need throughout your career.

Download the handbook in the link below.

capd.mit.edu/resources/ca...
Career Handbook
Here it is: your starter guide for developing the knowledge and skills you’ll need throughout your career. Compiled by our expert staff, here’s what this handbook covers:Overview of the…
capd.mit.edu
drdrxanderli.bsky.social
I would have titled this: “Shining a light on the black hole: Look you can see activations in orbitofrontal cortex now!”
imagingneurosci.bsky.social
New paper in Imaging Neuroscience by Ludwig Sichen Zhao, Jay A. Gottfried, et al:

Leveraging multi-echo EPI to enhance BOLD sensitivity in task-based olfactory fMRI

doi.org/10.1162/imag...
drdrxanderli.bsky.social
Completely agree.
micahgallen.com
It’s really heart breaking to realize just how much our short horizon, outcome focused funding cycles hurt science. We could do so much more if we could invest in people long term. Staff scientist positions and an ecosystem to support them are direly needed.
Reposted by Alexander Li Cohen
ariellekeller.bsky.social
This is wild! What a cool idea and set of approaches.

#neuroimaging #neuroskyence
matthiasnau.bsky.social
#Neuroimaging crowd, hear me out! 👀
Did you ever want to add #EyeTracking to your #fMRI study but found it too much hassle? Got existing data you’d love to add eye tracking to?

Consider trying out *MR-based eye tracking* (i.e. inferring gaze from eye voxels)!

Here is a 🧵 with a few options!👇 1/9
Reposted by Alexander Li Cohen
micahgallen.com
I think there is a way to do exploratory research very rigorously. Just use full transparency. Publish the entire github history for the analysis chain, nits, zits, and all. And of course, focus more on the strength of evidence than posthoc narrative building.
meharpist.bsky.social
I really enjoyed reading this world view in Nature about the importance of exploratory research in the social sciences by @balazsaczel.bsky.social and am wondering what people think. Do you generally agree with his point? 🧪@natureportfolio.bsky.social www.nature.com/articles/d41...
Let the data talk: embrace exploratory research
Open-ended research is essential to building solid hypotheses in the social sciences — without it, even the best-planned analyses can fail.
www.nature.com
Reposted by Alexander Li Cohen
leechbrain.bsky.social
The work incorporating optimisation to guide experiment design/analysis is also a way to do rigorous exploratory research. E.g.,

www.cell.com/trends/cogni...

www.nature.com/articles/s41...

www.cambridge.org/core/journal...
Reposted by Alexander Li Cohen
proffeynman.bsky.social
Students don't need a perfect teacher. Students need a happy teacher, who's gonna make them excited to come to school and grow a love for learning.