Parker Singleton
@parkersingleton.bsky.social
1.1K followers 220 following 95 posts
Senior Scientist at Penn Lifespan Informatics and Neuroimaging Center (PennLINC) studying psychedelics and the brain. sypres.io
Posts Media Videos Starter Packs
Pinned
parkersingleton.bsky.social
🍄 Our new living systematic review and meta-analysis on psilocybin for depression is out. Here's what we found and the open science infrastructure we built to support it 🧪🧵
www.medrxiv.org/content/10.1...
SYPRES (Synthesis of Psychedelic Research Studies) logo
Reposted by Parker Singleton
estherschindler.bsky.social
I just saw someone use the abbreviation “AI;DR” and I’ll be laughing for a while.
parkersingleton.bsky.social
Amazing stuff here from @goliashf.bsky.social and the RBC team! Harmonized and curated imaging and phenotype data from over 6,000 youth easily accessible without any DUA. Check it out.
goliashf.bsky.social
Excited to share that our work introducing the Reproducible Brain Charts (RBC) data resource is now published in Neuron!! 🎉

📚 Read the paper: authors.elsevier.com/c/1lpaF3BtfH...
🧠 Explore the RBC dataset: reprobrainchart.github.io
goliashf.bsky.social
(1/18) Now out on BioRxiv‼️ Reproducible Brain Charts: An open data resource for mapping brain development and its associations with mental health | doi.org/10.1101/2025...

Funded by National Institute of Mental Health (NIMH)
Reposted by Parker Singleton
ted-satterthwaite.bsky.social
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/...
parkersingleton.bsky.social
my linkedin feed has become filled with psychedelic memes and I'm connected with an OG acid kingpin.
parkersingleton.bsky.social
I'm near certain sLFOs are big for psychedelics.
ckorponay.bsky.social
An exciting 🆕 extension of our sLFO/FC inflation work (www.nature.com/articles/s41...)

Extracting the sLFO signal from BOLD data not only sharpens FC estimates..

..the sLFO itself - via links to arousal - captures variability in trait + state drug use phenotypes: tinyurl.com/msanmrnc
#neuroimaging
Systemic physiological "noise" in fMRI has clinical relevance
Functional magnetic resonance imaging (fMRI) is central to studying neurobiological mechanisms, yet fMRI has limited clinical utility, highlighting the need for novel approaches. We show that a compon...
www.medrxiv.org
Reposted by Parker Singleton
mps-cognition.bsky.social
Since July 21st, we have a good reason to celebrate the summa cum laude Defense of the newly minted Dr. Hettwer who received her PhD from @hhu.de under the supervision of Prof. Simon Eickhoff @sbe.bsky.social with strongest support of Dr. Sofie Valk! Congratulations Meike!!!🥂👏🏻🥁🎊
Reposted by Parker Singleton
ariellekeller.bsky.social
✨ New paper ✨ in JAMA Pediatrics! We discuss how understanding the timing ⏰ of stressful events relative to neurodevelopment can help us better identify risk factors (looking backward) and predict future psychopathology (looking forward) at the individual level
#neuroskyence #devpsych #PsychSciSky
Reposted by Parker Singleton
chazfirestone.bsky.social
Is it possible to manipulate a high-level visual property while holding ~all low-level visual properties constant?

“No!”, you say.

Allow @talboger.bsky.social to show you otherwise! Now
in press @currentbiology.bsky.social

🐇🐘
talboger.bsky.social
On the left is a rabbit. On the right is an elephant. But guess what: They’re the *same image*, rotated 90°!

In @currentbiology.bsky.social, @chazfirestone.bsky.social & I show how these images—known as “visual anagrams”—can help solve a longstanding problem in cognitive science. bit.ly/45BVnCZ
Reposted by Parker Singleton
ted-satterthwaite.bsky.social
Just delighted to see this out in the world !! This is the first installment of SYPRES -- our living meta-analysis + open data resource focused on psychedelics. Led by the incomparable @parkersingleton.bsky.social and @bsevchik.bsky.social. Check it out + and give us your feedback!!!
parkersingleton.bsky.social
🍄 Our new living systematic review and meta-analysis on psilocybin for depression is out. Here's what we found and the open science infrastructure we built to support it 🧪🧵
www.medrxiv.org/content/10.1...
SYPRES (Synthesis of Psychedelic Research Studies) logo
parkersingleton.bsky.social
All of this and more can be easily accessed through sypres.io

Team effort with co-first author (!!!) @bsevchik.bsky.social and the rest of the SYPRES and Metapsy team who made this happen!
SYPRES
The official website for the sypres initiative.
sypres.io
parkersingleton.bsky.social
In partnership with metapsy.org we built an interactive dashboard for exploring the data. Users can:
• Filter studies by characteristics
• Test different analysis parameters
• Test moderators
• Download figures and reports

Dashboard: metapsy.org/sypres/psilo...
screenshot of the dashboard home page
parkersingleton.bsky.social
Our database includes 200+ effect sizes, encompassing all depression outcomes and timepoints reported by arm in each of the 12 RCTs included. This database can be downloaded from our website (sypres.io) or imported directly into R environments using the metapsyData package from metapsy.org
screenshot of the GitHub repository readme for the database
parkersingleton.bsky.social
Here, psilocybin showed a greater reduction in depression scores compared to control conditions, with a pooled Hedges’ g = -0.91 (k = 9; p = 0.0013, I2 = 58.1%, n = 501). But important caveats—small studies, blinding challenges, risk of bias, and design heterogeneity, which we discuss in the paper.
Forest plot of effect sizes.
parkersingleton.bsky.social
sypres.io is our new initiative featuring:
📊 Regularly updated meta-analyses
🔍 User-guided sensitivity and moderation analysis
🕵️ Transparent study quality & risk-of-bias assessments
⚙️ Open code & data
screenshot of the psilocybin for depression section on sypres.io
parkersingleton.bsky.social
Psychedelic science has experienced the benefits and drawbacks of hype. However, new results are rarely contextualized in the historical body of evidence in an accessible manner. We need more robust, living, evidence synthesis that is visible and accessible to all stakeholders.
Image of the Gartner hype cycle
parkersingleton.bsky.social
🍄 Our new living systematic review and meta-analysis on psilocybin for depression is out. Here's what we found and the open science infrastructure we built to support it 🧪🧵
www.medrxiv.org/content/10.1...
SYPRES (Synthesis of Psychedelic Research Studies) logo
parkersingleton.bsky.social
@audreycluo.bsky.social has had one of the most impressive graduate careers I've ever seen. Kudos!!!!
ted-satterthwaite.bsky.social
CONGRATS TO DOCTOR @audreycluo.bsky.social !!! Last week, Dr. Luo knocked our collective socks off with a thesis defense for the ages. Her presentation on "Axes of Hierarchical Brain Development" was magnificent -- beautiful science, presented in an incredibly accessible and engaging way. WOO!!!!
Reposted by Parker Singleton
jasteralaina.bsky.social
Somehow we got almost all the students and postdocs in one photo!!

Until next time #GRCPsychedelics 🫡
Reposted by Parker Singleton
melissaherman.bsky.social
So happy the first #GRCPsychedelics was such a success. It was great to see everyone and share all the amazing science and community. Thank you to all the speakers and congratulations to the travel awardees!!
Reposted by Parker Singleton
alexkwan.bsky.social
Great panel this morning on the human and clinical studies of psychedelics -

my impression is we have come a long way in the last few years in terms of design and quantification #GRCPsychedelics
Reposted by Parker Singleton
melissaherman.bsky.social
#GRCPsychedelics 🔥🔥🔥🔥poster session and our first ever Honorary Best PI poster award to @zenbrainest.bsky.social 🤣🤣🤣