Poppy Zenzi Grimes @pzg.bsky.social · 27/11/2025Almost there... It's a bad day to be a supplementary table. 360 pages 😮💨 #PhAlmostDone 020
Reposted by Poppy Zenzi GrimesJeff Spence @jeffspence.github.io · 19/11/2025@hakha.bsky.social and I wrote a Research Briefing (with a lay summary + "behind the scenes") of our paper on how genes are prioritized by GWAS and rare variant burden tests. 🧬🧪 www.nature.com/articles/d41...nature.comHow do genetic association studies rank genes?Genome-wide association studies and rare-variant burden tests reveal complementary aspects of trait biology. 15322
Reposted by Poppy Zenzi GrimesShai Carmi @shaicarmi.bsky.social · 11/09/2025Brilliant paper by Visscher et al. Populations differ in traits/disease burden. Are these differences due to genetics? Comparing single variants or polygenic scores between populations is biased due to environmental confounders correlated with the variants. 1/3 www.medrxiv.org/content/10.1...medrxiv.orgDirect effect of genetic ancestry on complex traits in a Mexican populationHuman populations differ in disease prevalences and in average values of phenotypes, but the extent to which differences are caused by genetic or environmental factors is unknown for most complex trai... 14220
Reposted by Poppy Zenzi GrimesSasha Gusev @sashagusevposts.bsky.social · 02/08/2025A few thoughts on Herasight, the new embryo selection company. First, their whitepaper (drive.google.com/file/d/1EpFi...) implies that competitors like Nucleus have been marketing and selling grossly erroneous risk estimates. This is shocking if true! 🧵 27342
Reposted by Poppy Zenzi GrimesJoni Coleman @jonicoleman.bsky.social · 27/06/2025What's going on in psychiatric genetics? The @pgcgenetics.bsky.social have now published our latest progress review in @thelancetpsych.bsky.social, highlighting discovery, and laying out a map for moving forwards! www.thelancet.com/journals/lan...thelancet.comThe Psychiatric Genomics Consortium: discoveries and directionsResearch by the Psychiatric Genomics Consortium (PGC) has advanced the discovery of common and rare genetic variations that contribute to the susceptibility to many psychiatric disorders and neurodeve... 02110
Reposted by Poppy Zenzi GrimesCatherine E. de Vries @catherinedevries.bsky.social · 04/06/2025You don’t need more ideas. You need a better question. A thread on clarity, chaos, & what a Nobel Prize winner, a mosquito net & a PhD meltdown taught me about writing (+ thinking) better. 🪨 Here’s my new Respect the Marble post: catherineeunicedevries.substack.com/p/you-dont-n... 🧵catherineeunicedevries.substack.comYou Don’t Need More Ideas. You Need a Better QuestionWhat Michelangelo, a Nobel Laureate, and a PhD Meltdown Taught Me about Research Questions 26329
Poppy Zenzi Grimes @pzg.bsky.social · 29/04/2025Excited to share that the second paper from my PhD has just been published in @NatMentHealth!🧠🧵 We modelled depression symptom networks in >35k teenagers to derive their 'network temperature' and found evidence symptom stabilisation across adolescence... www.nature.com/articles/s44...nature.comNetwork temperature as a metric of stability in depression symptoms across adolescence - Nature Mental HealthThis study explores the dynamics of adolescent depression through the lens of network temperature, a novel concept in psychological symptom networks. Researchers observed a decrease in network tempera... 191
Reposted by Poppy Zenzi GrimesEiko Fried @eikofried.bsky.social · 13/03/2025Dissertation by Dr Rachel Los not only includes acknowledgements, but also .. anti-acknowledgements. delta.tudelft.nl/en/article/a... 519671
Poppy Zenzi Grimes @pzg.bsky.social · 14/02/2025aeon.co/essays/alan-...aeon.coAlan Watts – the Western Buddhist who healed my mind | Aeon EssaysHow I found my way out of depression, thanks to the writings of the English priest who brought Buddhism to the West 010
Reposted by Poppy Zenzi GrimesAndrew Grotzinger @andrewgrotzinger.bsky.social · 06/12/2024You've heard of DNA, but what about GNA? Very excited about this preprint with @jgthorp.bsky.social and others that introduces Genomic Network Analysis (GNA), an open-source multivariate tool for performing network analysis using GWAS summary statistics as input. 1/2 www.medrxiv.org/content/10.1...medrxiv.orgGenomic network analysis characterizes genetic architecture and identifies trait-specific biologyPervasive genetic overlap across human complex traits necessitates developing multivariate methods that can parse pleiotropic and trait-specific genetic signals. Here, we introduce Genomic Network Ana... 42910
Reposted by Poppy Zenzi GrimesChristian Webb, PhD @christianwebb.bsky.social · 27/11/2024New large study (n ~ 6 million) in @JAMApsych tracking mental disorder trends in Denmark showing increases in mood disorders in recent birth cohorts tinyurl.com/c5nyfd8k 34719
Poppy Zenzi Grimes @pzg.bsky.social · 04/11/2024A fantastic week at #WCPG2024 in Singapore! Grateful to work and travel with many wonderful people 🔬🦀🇸🇬 060
Reposted by Poppy Zenzi GrimesAndrew McIntosh @mcintosh2001.bsky.social · 23/10/2024The terrific @pgcgenetics.bsky.social Major Depressive Disorder Working Group in Singapore 081
Poppy Zenzi Grimes @pzg.bsky.social · 17/10/2024Hello from Singapore #wcpg2024!🌏 I am presenting an update on the current results of the *Adolescent-Onset Depression GWAS* on Friday at 3pm in the symposium on Genomics and Life Course Data. Come and watch! 051
Poppy Zenzi Grimes @pzg.bsky.social · 09/10/2024I’m presenting three different projects at these upcoming conferences over the next month! Looking forward to meeting fellow MH researchers 🌏 · World Congress of Psychiatric Genetics 🇸🇬 · International Congress of Neuropsychiatry 🇦🇺 · Society for Mental Health Research Conference 🇦🇺 010
Poppy Zenzi Grimes @pzg.bsky.social · 02/08/2024🚨🌡️New pre-print on PsyArXiv! We conceptualise and investigate *network temperature* as a measure of longitudinal stability in depression symptom networks across adolescence. [Replication in 3 cohorts with >35k adolescents!] osf.io/preprints/ps... 030
Reposted by Poppy Zenzi GrimesPsyArXivBot @psyarxivbot.bsky.social · 01/08/2024Network Temperature as a Metric of Stability in Depression Symptoms Across Adolescence: osf.io/9zmge 011
Reposted by Poppy Zenzi GrimesEiko Fried @eikofried.bsky.social · 11/07/2024This is the recording of my June 2024 keynote at the DPK congress, entitled "Embracing complexity: studying mental health problems as systems, not syndromes". They made a nice recording & allowed me to share it. Thanks a ton, DPK organizers 🖤. 🧪 #stats #psychscisky www.youtube.com/watch?v=B1cR...youtube.comStudying mental health problems as systems, not syndromesThis is a keynote I gave at the DPK congress in Berlin 2024, a large conference primarily attended by psychotherapists. I want to thank them—and especially T... 02712
Poppy Zenzi Grimes @pzg.bsky.social · 22/05/2024Missing data, longitudinal binary symptoms for multi-group Ising model estimation. HELP!!!! Impute? If so, how to pool estimates? Don't think it's right to avg. over networks? Use maximum likelihood estimator instead? 😵💫 100
Poppy Zenzi Grimes @pzg.bsky.social · 17/05/2024I am delighted to announce my first first-author paper has just been published in @JAMAPsych! 🥳🧬📈 ‘Genetic Architectures of Adolescent Depression Trajectories in 2 Longitudinal Population Cohorts’. Link to paper: ja.ma/4bkGsPj and a 🧵 of our key findings below… 1131
Reposted by Poppy Zenzi GrimesAbdel Abdellaoui @dr-appie.bsky.social · 10/03/2024Great job students and faculty of the International Statistical Genetics Workshop 2024 in Boulder, what an amazing week it was, as always 🧬❤️🍻 Next year it's GWAS and sequence data analysis again, see you then: colorado.edu/ibg/workshop 1218