9/ The EXT PGI was also associated with diverse medical outcomes across the lifespan, underscoring the clinical relevance of this genetic signal.

Our multi-ancestry GWAS of EXTernalizing conditions (ADHD, substance use...) in ~4M people reveals neurodevelopmental risk, drug-repurposing targets, and yields one of the strongest psychiatric polygenic indices yet! 🧬🎉 doi.org/10.64898/202...

Look at the data! It's all over the map. If you drink half a cup per day, your risk is a little higher than none at all. If it's 2.5 cups, risk is 20% lower. But if it's 4.5 cups, risk is only 13% lower. There's no universe where this makes causal sense. jamanetwork.com/journals/jam...

You know that coffee & dementia study that's going around? It's hogwash. For starters, it's not pre-registered (that I could find), which means it may have been the product of a fishing expedition looking for dementia associations. But even if it's not ... www.nytimes.com/2026/02/09/h...

Tired: nature vs nurture false dichotomy Wired: intrinsic mortality vs extrinsic mortality false dichotomy (I do think some of the modeling approaches here are pretty cool tho!)

Do you have to be a social scientist to know how funny this is?

The ARP DEI Committee warmly invites you to join us for a casual happy hour during SPSP in Chicago later this month. This is a chance to connect with like-minded personality peers amongst the sea of social scientists @spspnews.bsky.social!

Tally one for personality on the "person situation debate scoreboard" that the psychologists in the Epstein files are pretty uniformly high on dominance, narcissism, need for admiration. Haven't come across a single "Oh, HIM? Never would have guessed!"

SPSP is just around the corner and in our backyard of Chicago! @lydiaemery.bsky.social and I love the Chicago food scene, and we've put together a list of places we like. We hope this will help you enjoy and explore Chicago!! See y'all soon!! docs.google.com/document/d/1...

Anyone know a simple, free static QR code generator? I'm struggling to wade through a slush of freemium generators with way more options than necessary. I just want to hardcode a URL into the pattern.

Replying to @bwroberts.bsky.social on cross-lagged panel models open.substack.com/pub/drewhalb...

Me and @aysuo.bsky.social did a thing. Give it a listen!

With most psychedelic drugs, you never know what you're going to get. But this mysterious mushroom from China - without fail - causes users to hallucinate tiny people: crawling up walls, popping out from under furniture and marching under doors. www.bbc.com/future/artic...

The Personality Interest Group Including Espresso journal club (PIG-IE) at the University of Illinois at Urbana-Champaign now has a public reading schedule: pig-ie-reading-vote.lovable.app/schedule. 1/

A very comprehensive review of the genetics of personlity led by @tedmond.bsky.social This is a great onramp for those who haven't checked into psychiatric genetics or bahviour genetics in a while. www.annualreviews.org/content/jour...

Gabriel Zucman on the shocking concentration of extreme wealth in the United States…. gzucman.substack.com?r=nle0&utm_c...

Bringing Cory Doctorow to the Amazon ces exhibit is like summoning Bahamut in FF7 against a single enemy with 1 hp

Observational shows associations with bad stuff. RCTs, a little weight loss, no bad stuff. Since researchers can't find obvious problems, more recent studies have focused on the microbiome, where all bad ideas go to not die. That's a topic for another day. pmc.ncbi.nlm.nih.gov/articles/PMC...

Here we go again with using observational data when it suits them. This is particularly important here, because there’s a huge difference between observational data & trials on artificial sweeteners.

Here's a figure from the lead author of the new study that lays out the rules of the game.

Wrote up my annual list of top albums! One of my favorite little winter break traditions. tedmond.net/teds-top-5-a... Would love to hear your thoughts / your faves from this year.

Wrote up my annual list of top albums! One of my favorite little winter break traditions. tedmond.net/teds-top-5-a... Would love to hear your thoughts / your faves from this year.

"If you *only* used SAT to admit to elite colleges, share of admits from top 1% income falls 15.8% → 9.9% and representation from <$200k rises by +8.8%, with no reduction in post-college outcomes."

I've waited 3 years to make this post

Rounding out 2025 with a new publication in Psychological Science! @psychscience.bsky.social What psychological factor predicts having better physical health, greater happiness, being stereotyped positively, and voting conservatively?

Ever wondered whether we could map personality profiles as we do with genetic or brain data? We applied a similar method to explore similarities and differences of NEO PI profiles in our fresh-out paper. Here’s what we found 🧵 journals.sagepub.com/doi/10.1177/...

I wrote about the bizarre case of Herasight, the embryo selection company going all in on eugenics.

1/4 Thrilled to be sharing new work published today in Nature describing the third wave of results from the PGC Cross-Disorder Group. This reflects a massive group effort to examine shared and unique genetic signal across >1 million cases for 14 psychiatric disorders. www.nature.com/articles/s41...

Hi all, thanks to everyone who reposted. I am still seeking guest lecturers. Please reach out if you are willing or can recommend someone who would be a good fit. I appreciate your help!

Want to make nice graphs with me, starting next year? I'm hiring for a position at the University of Witten/Herdecke. uni-wh.softgarden.io/job/61280592...

This is a big part of why basically every archaeologist who gets asked "when in the past would you want to have been alive?" will answer "the present please and thank you"

I named my fists Kahneman and Tversky because I’m gonna make your losses loom larger than your gains

Blog post: A Missing Heritability Update. Three legs and other problems. I follow up on the recent excellent post on the subject by @sashagusevposts.bsky.social. ericturkheimer.substack.com/p/missing-he...

www.cdc.gov/vaccine-safe... Whoever was forced to write this at the CDC doesn't know a thing about science or making sense of evidence. How frustrating and sad.

It's time for my annual reminder that Thanksgiving will (likely) be more meaningful than you think 🦃

We've updated a paper on the 3-year, $1000/month U.S. guaranteed income study. New results, in 3 figures: 🧵 1) Subjective well-being significantly improved in the treatment group in year 1, but there were no significant differences between the treatment & control group after that. 1/

Opinion: The Smashing Pumpkins are currently the most influential rock band in the world -- and maybe the most underrated (in that people think they were good, but they were *GREAT*)

Another reminder that if you got students who wanna do a social psych PhD focusing on identities (specifically Asian, Latine, MENA Americans), I’m recruiting! I’m hustling hard here so pls send people my way 😅 see website for details www.pbandjlab.com

Cool! I do remember attending a session in ECP21 were this paper (doi.org/10.1038/ncom...) was discussed, cool stuff! Would you think that stocasticity might be the key factor here? And could it actually be a source of variability behind individual differences in humans?

came across a fun article on personality in C. Elegans "Even when they are genetically identical and reared in the same environment, different individuals exhibit behavioral differences that are stable over long periods" www.sciencedirect.com/science/arti...

The latest podcast is with psychologist and openness to experiences expert Ted Schwaba, who walks me through this mysterious, awe-inspiring (literally) personality trait substack.com/home/post/p-...

What's the social psych term for "a group that one feels compelled to sort a person into?" Like, whenever I meet a person, my brain automatically tries to answer "what is their gender?" -- it's very hard for me to consider a person sans gender.

Out now at PSPR: our love letter to the personality trait of Openness! Amber Thalmayer and I identify and (try to) explain the many ways that openness/intellect is the weirdest & WEIRDest of the Big Five. (Big improvements over the old preprint! thx reviewers) journals.sagepub.com/eprint/HBGXT...

a couple years ago i contracted with one of subway's ad agencies for a small rotating sandwiches collab that ultimately they decided not to publish and i never did anything with. today feels like a good day to post one of them. here's my favorite subway sandwich, the veggie delight

1/ 🚨New paper in Nature Genetics Genetic factors are associated with the educational fields people study, from arts to engineering. Article: www.nature.com/articles/s41... FAQ: www.thehastingscenter.org/genomic-find...

On my calendar today I have scheduled "zoom GWAS" for 1pm. Current me has no idea what this refers to, there's no zoom link, no other guests, nothing in my last month of emails provides a clue. SO I'm just going to anxiously await an email at 1:05pm that says "where are you?" SORRY to whomever!

A reminder that I’m accepting applications for PhD students!

Interdisciplinary paper with @paulhufe.net Astrid Sandsør and Nicolai Borgen now out in PNAS! www.pnas.org/doi/epdf/10.... Causal evidence of gene-environment interaction for reading test scores based on: 🧬 Exogenous within-family genetic differences 🏫 Exogenous variation in school value added

New release of PowerLMM.js! Browser-based power analysis for longitudinal models with dropout. Now includes: - Power analysis summary report - Reproducible & shareable configs (URL/JSON) - Calculations validated against R - Hypothesis region visualization powerlmmjs.rpsychologist.com

After the FBI denied "children were zip-tied or hit with rubber bullets" in a raid in Wilder, Idaho, the FBI said no "young" children were. The updated statement came after KIVI-TV sent FBI photo reportedly showing 14-year-old U.S. citizen in zip ties.