Eivind Ystrom

Multidomain predictors of long-term work disability in late survivorship after head and neck cancer - Supportive Care in Cancer Purpose To estimate the prevalence of long-term work disability (LTD) among head and neck cancer (HNC) survivors more than five years posttreatment, compare profiles of employed, retired, and LTD grou...

I’m pleased to share our new article, “Multidomain predictors of long-term work disability in late survivorship after head and neck cancer,” published in Supportive Care in Cancer.

Read it Open access: doi.org/10.1007/s005...

Curious about how psychological theories are built, tested, and refined in practice? This summer, the Theory Methods Society is launching the very first edition of the summer school Theory Building in Psychology at the University of Amsterdam (July 6–10, 2026).

theorymethodssociety.org

JCPP Advances | ACAMH Child Development Journal | Wiley Online Library Background The extent to which children's psychological traits influence their educational performance is thought to depend on the fit between the individual and their developmental context. However...

Article alert: Qi Qin has a new paper in JCPP Advances @acamh.bsky.social : #schools matter most for how children's traits translate into #education; high-performing contexts buffer challenges. Key milestone for @erc.europa.eu CoG project #GeoGen #MoBa @uio.no doi.org/10.1002/jcv2...

📢 LEARN! seminar in Amsterdam
Genetics meets environment: twin studies & polygenic scores in learning and neurodiversity.

📅 12 Feb | 📍 VU Amsterdam | 🍷 drinks afterwards

All are very welcome! This marks me starting as Programme Leader Educational Neuroscience at LEARN!
@geneamsterdam.bsky.social

Me and @aysuo.bsky.social talk to @sjoerdalten.bsky.social about economics and genetics. And we get some book recommendations. Neat!

Researcher in Post-Pandemic Youth Mental Health  (294258) | University of Oslo Job title: Researcher in Post-Pandemic Youth Mental Health  (294258), Employer: University of Oslo, Deadline: Thursday, March 5, 2026

I'm hiring #PROMENTA @uio.no: Researcher (PhD) in post-pandemic youth mental health (#NordForsk consortium SISU/PRISM).
#MoBa #genetics + registry data -> gene-environment interactions. Please share!
www.jobbnorge.no/en/available... @ki.se @haskolinn.bsky.social @thlorg.bsky.social

📢🧬 Call for Papers — 5th ESSGN Conference
📍 Bologna, May 21–22, 2026

I’ll be co-organising the 5th ESSGN conference in Bologna together with Nicola Barban, Stephanie von Hinke, Paul Hufe, and Niels Rietveld @essgn.bsky.social

📄 Submit here: forms.gle/fmVDUrQqQYju...
🗓 Deadline: 1 March 2026

Ahoy! Call for papers now open for this year's amazing ESSGN conference - returning to the beautiful Bologna. Have anything to present at the intersection of the social sciences and genetics? Don't miss!

Thanks! Yes, yhere is more promise to also do paternal IGEs using the register data with adoptions, half siblings, and other disruptions of rGE. Just need some hands to do it.

and @essgn.bsky.social, @behaviorgenetic.bsky.social, @pgcgenetics.bsky.social, #jcpp

11/11 Big thanks to Espen Eilertsen, Nikolai Eftedal, @rosacheesman.bsky.social , @ziadaayorech.bsky.social, Joakim Ebeltoft, @hfsunde.bsky.social, Anneli Tandberg and @torvik.bsky.social ! Also all MoBa participants!

10/11 Caveats: outcomes were maternally reported (possible rater bias). We focused on maternal effects; paternal effects may also matter. Indirect genetic effects are probabilistic and don't identify the specific parenting behaviors to target.

9/11 Take-home: substantial maternal (parenting-related) contribution across the spectrum; largely one shared dimension; accounting for it matters for interpreting "heritability" and genetic correlations.

8/11 Example: for oppositional defiant/hyperactivity/inattention, direct genetic variance was ~50-61% when maternal effects were omitted, but ~30-31% when maternal effects were modelled - highlighting confounding potential.

7/11 Those maternal effects were mostly general: a single underlying maternal factor accounted for most of the maternal influence across both internalizing and externalizing symptoms.

6/11 Main result: indirect maternal genetic effects explained ~7-18% of variance across these symptom measures.

5/11 We (i.e. Espen) modeled 7 symptom scales at age 8 (maternal ratings): conduct, oppositional defiant, hyperactivity, inattention, neuroticism, depression, anxiety - plus household effects to separate "family environment" from maternal effects.

4/11 Data: 42,423 children and 37,418 mothers from the Norwegian Mother, Father and Child Cohort Study (MoBa), combining pedigree links with genotype-based relatedness.

3/11 Why it matters: if we ignore indirect parental effects, we risk attributing too much to children's direct genetics (and mischaracterizing the structure of genetic risk).

2/11 Concept: mothers' genes can affect children indirectly via the environment they provide ("genetic nurture") - not about blame, but about pathways beyond direct inheritance.

<em>Journal of Child Psychology and Psychiatry</em> | ACAMH Pediatric Journal | Wiley Online Library Background From a functionalist perspective, parenting behaviors have adaptive functions and are partly expressions of genetic variation. Maternal genes that have effects on children are often refer...

Article alert!🚨
1/11 Parents matter - and we can quantify part of that influence genetically. Our new JCPP paper on multivariate indirect maternal genetic effects across internalizing and externalizing symptoms. doi.org/10.1111/jcpp...
#jcpp @uio.no @unioslo-svfak.bsky.social @unioslo-uv.bsky.social

What We Inherit: How New Technologies and Old Myths Are Shaping Our Genomic Future by Sam Trejo and Daphne O. Martschenko

In What We Inherit, Sam Trejo and @daphmarts.bsky.social debate the use of genomic tools and their societal impact.

Now available (31 March UK pub).

Learn more about this fascinating book: press.princeton.edu/books/hardco...

#Biology #ReadUP

Why Wealth Inequality Matters: A Symposium - Massachusetts Institute of Technology Join us for a series of interdisciplinary discussions on wealth inequality – its origins and political philosophy, its national and global contexts, and its connections…

On 27 January, MIT's new Stone Center will host a symposium (hybrid) on Why Wealth Inequality Matters. See the agenda and register: shapingwork.mit.edu/events/why-w...

Longitudinal modelling reveals widespread non-additive genetic effects underlying developmental plasticity https://www.biorxiv.org/content/10.64898/2025.12.19.695443v1

The 21st Century Resurgence of Eugenics YouTube video by The British Academy

1/ In a recent @britishacademy.bsky.social video @rebeccasear.bsky.social from @brunelpsy.bsky.social takes a clear-eyed look at the 21st‑century rise of eugenics - an ideology that should have been left behind, yet is now re‑emerging in a number of troubling ways ⚠️🧬 🧪

Watch the full talk here 🎥👇

Embryo selection company Herasight goes all in on eugenics ...

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

In the summer of 2024, we arrived in Oslo as a family for a sabbatical year.
This summer, we returned to Amsterdam.

I’m only reflecting now, because reflection takes time, and last week working in Oslo brought everything back.

If you live somewhere for exactly 1 year, every season counts. (1/5)

11/11 Work by @qiyuanpeng.bsky.social Espen M. Eilertsen @rosacheesman.bsky.social Niels Rietveld @eivindy.bsky.social and Alexandra Havdahl from @essgn.bsky.social, with @uio.no @erasmusuniversity.bsky.social #NIPH @unioslo-svfak.bsky.social @unioslo-uv.bsky.social #PROMENTA
#BehaviorGenetics

9/11 Why this matters: SNP-heritability from unrelated individuals can partly reflect *combined* direct + indirect effects. Family-based genomic designs (Trio-GCTA/RDR) help interpret #SocialGenomics findings in #EducationalInequality and #SocialMobility.

More than nature and nurture, indirect genetic effects on children’s academic achievement are consequences of dynastic social processes - Nature Human Behaviour Using a unique high-quality dataset of 37,000 parent–offspring trios, the authors probe the mechanisms of the so-called indirect genetic effects on educational attainment. Surprisingly, they find that...

9/11 However, the gene-environment is correlations are closer to zero than one, indicating that most parenting behaviour promoting education is unrelated to parental educational achievement. Somewhat In line with @michelnivard.bsky.social prior negative findings on EA PGIs doi.org/10.1038/s415...