Nicholas Judd

Nicholas Judd

@njudd.com

Jacobs & Pro Futura Scientia Fellow Researcher @ StockholmUni + Donders - Interested in what shapes our brain & cognition

478 followers205 following57 posts

wow.

Dan Garisto@dangaristo.bsky.social

Small addendum: It's tricky to see what precisely SBE did fund in FY26 because almost everything was relabeled as 'cross-directorate activities'—a catch-all for directorate-wide funding. This plot, though, gives a sense of how many program areas (30+) SBE had previously funded and how they were cut.

Nicholas Judd reposted

Our commentary "A Revolution in Search of an Estimand: On the Idionomic Proposal of Hayes et al. (2026)" is now available as a preprint: osf.io/preprints/ps... With @rpsychologist.com, @matti.vuorre.com, and Nils Hentati Isacsson.

osf.ioOSF
Magnus Johansson@pgmj.bsky.social

Interesting timing. I just noticed this paper: Hayes, S. C., Ciarrochi, J., Sahdra, B. K., Hofmann, S. G., Ong, C. W., & Hernández, C. (2026). One size fits none: A call for an idionomic revolution. Clinical Psychology Review, 129, 102800. doi.org/10.1016/j.cp...

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We find no effect of additional perinatal wildfire smoke exposure on later adolescent development. This could be for a myriad of reasons: shorter exposure window, longer period between exposure & outcomes, and/or protective factors.

This project has been in the pipeline for a very long time, and it joins the growing body of work showing the adverse effects of PM2.5 exposure during childhood. Wildfires represent a small but increasing proportion of air pollution in the US.

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As expected, our wildfire exposures show no correlation with socioeconomic status – making it a useful method for isolating pollution. It is important to separate this design aspect from non-equal treatment effects (which could follow SES gradients).

Using longitudinal modeling, we find that less childhood wildfire PM2.5 exposure leads to increased developmental neural and cognitive trajectories over adolescence. Less exposure ⬇️, more development ⬆️. These results survive robustness testing.

Most prior neural work is cross-sectional & relies on neighborhood pollution. This is problematic because a myriad of neighborhood- and individual-level factors are associated with both brain development and pollution. Making it challenging to disentangle!

Here, we make an attempt to break this link by examining the effect of wildfire-specific pollution on within-child neural & cognitive change. We do this by matching a child’s DOB, visit date, and location to high-resolution wildfire PM2.5 data. Constructing both a perinatal and childhood exposure.

Nicholas Judd reposted

Amazing 1st lecture by Katalin Karikó, who gave candid insights into her life in science & deeply non-linear path towards her Nobel Prize in 2023. Favourite quote: "When things go wrong, don't waste time feeling sorry for yourself" What a way to kick off #LINO75 www.penguin.co.uk/books/462526...

penguin.co.ukBreaking ThroughKatalin Karikó began life as a butcher’s daughter in communist Hungary. Raised in a one-room home of clay and straw with no running water, she saw potential everywhere: in the promise of a seed, in th...

Was really a pleasure working with BOLD 🎉

BOLD@boldinsights.bsky.social

“Every child is unique. Two children may respond positively to the same intervention but for entirely different reasons.” Nicholas Judd tells Aisha Schnellmann about his work examining how children’s environments shape brain development and learning. @njudd.com boldscience.org/the-cognitiv...

Having paid over $1,200 for OHBMs' 4-day conference (early bird price), I do not understand why we don't have conferences using university infrastructure during the summer. Is there something I am missing? This money could be spent on so much fun stuff, dinners, networking, scholarships, etc.

Nicholas Judd reposted

Scientific publishing: Rethinking how research is reviewed and published Review of how the loss of impact factor affected submissions at eLife - uneven drop across countries, but generally holding up remarkably well and shows a new model is possible elifesciences.org/articles/110...

elifesciences.orgScientific Publishing: Rethinking how research is reviewed and publishedTaking a radical new approach to the publication process resulted in eLife losing its impact factor, but authors, reviewers, editors and funders support the journal and its efforts to reform scientifi...

Nicholas Judd reposted

I am a parking reformer because I live in a country where self-professed environmentalists, like this @sierraclub.org leader, oppose affordable housing because it ”doesn’t have enough parking.”

Jordan Grimes@cafedujord.bsky.social

Mike, a leader of the local Sierra Club chapter, is up now. He says it’s “heartwrenching” to hear people’s needs for housing. He claims that the city has always been supportive of affordable housing. BUT! He says this project is too tall (5 stories) and doesn’t have enough parking.

Nicholas Judd reposted

Are you a postdoc in the Brain & Cognitive Sciences? 🧠 Don't miss this opportunity to showcase your work at MIT - apply by May 31! 🌟

Sreeparna Pradhan@sreeparnap.bsky.social

The MIT BCS Postdoc Association is looking for a Rising Star 🌟 Showcase your work and meet folks in the department! Deadline 31st May 2026! @picowerinstitute.bsky.social

Nicholas Judd reposted

Nicholas Judd reposted

Despite decades of research there are still no reliable biomarkers for any of the major psychiatric diagnoses. In this now published perspective in Molecular Psychiatry we consolidate evidence from genetics, exposome and neuroimaging research on the potential reasons underlying these failures.

nature.comThe many-to-many problem of endophenotypes in psychiatry - a biological perspective - Molecular PsychiatryMolecular Psychiatry - The many-to-many problem of endophenotypes in psychiatry - a biological perspective

Nicholas Judd reposted

Nicholas Judd reposted

Replying to @matthewakraft.com

There are also meaningful differences in school proximity to hazardous sites by state. Even among states with similar site and population densities, the share of sites located near schools varies, suggesting the influence of local policy and land-use decisions. 5/

Nicholas Judd reposted

The CNG plot thickens - which method recovers correctly a true number of factors? 🍿👇

Ondrej Zika@ondrejzika.bsky.social

In factor analysis, why does the commonly used CNG method nearly always land at 3 factors when applied to anx/depr/ocd scales? TLDR: There tends to be one factor/component with a large eigenvalue. In these cases, almost inevitably and somewhat arbitrarily, the procedure selects 3 factors 👇

Nicholas Judd reposted

New personal record of desk rejects 🥳 I am taking a note of journals that take over a month for the desk 📖 It is also a unusual situation where pretty much everything has been already reviewed at eLife on our Neuro paper (click for open reviews), now the sample size is just substantially larger.

elifesciences.orgNo effect of additional education on long-term brain structure – a preregistered natural experiment in thousands of individuals
rogier kievit@rogierk.bsky.social

New paper by @njudd.com shows that an additional year of education doesn't causally affect telomere length in old age, despite many (theory) accounts arguing otherwise. It's been desk rejected by 13 journals happy to publish small 'positive' telomere studies. Sigh. www.biorxiv.org/content/10.1...

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Here, you can even see how the weight of evidence shifts across 6 different structural brain metrics related to aging when you look at educational attainment (correlational) and education from a policy change (causal).

A similar effect happens for telomeres, yet 13 editors agreed it shouldn't get past the desk. Possibly it was seen as narrow in scope, yet education has one of the largest confounded effects with aging biomarkers. If this is happening for education... Mediterranean diets, etc watch out.

New personal record of desk rejects 🥳 I am taking a note of journals that take over a month for the desk 📖 It is also a unusual situation where pretty much everything has been already reviewed at eLife on our Neuro paper (click for open reviews), now the sample size is just substantially larger.

elifesciences.orgNo effect of additional education on long-term brain structure – a preregistered natural experiment in thousands of individuals
rogier kievit@rogierk.bsky.social

New paper by @njudd.com shows that an additional year of education doesn't causally affect telomere length in old age, despite many (theory) accounts arguing otherwise. It's been desk rejected by 13 journals happy to publish small 'positive' telomere studies. Sigh. www.biorxiv.org/content/10.1...

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Using the largest sample of telomere length around (UK Biobank), we really find absolutely no effect from an additional year of education via a policy change. This mirrors our null finding for structural neuroimaging in Elife.

New personal record of desk rejects 🥳 I am taking a note of journals that take over a month for the desk 📖 It is also a unusual situation where pretty much everything has been already reviewed at eLife on our Neuro paper (click for open reviews), now the sample size is just substantially larger.

elifesciences.orgNo effect of additional education on long-term brain structure – a preregistered natural experiment in thousands of individuals
rogier kievit@rogierk.bsky.social

New paper by @njudd.com shows that an additional year of education doesn't causally affect telomere length in old age, despite many (theory) accounts arguing otherwise. It's been desk rejected by 13 journals happy to publish small 'positive' telomere studies. Sigh. www.biorxiv.org/content/10.1...

Lots of prior work has related longer telomeres to a host of positive lifestyle factors - with often the explicit hx that engaging in these behaviors will slow down biological aging (aka build a cognitive reserve).

As mentioned by others (Rentscher et al., AnnRev, 2020) the vast majority of this work isn't even longitudinal. It is just people cross-sectionally relating telomere length to [insert your favorite IV]. Our paper is (to my knowledge) the first natural experimental design on telomeres.

Nicholas Judd reposted

Great post! I just read this paper by @drewhalbailey.bsky.social and colleagues that shows the RI-CLPM also performs better than CLPM when there are unmeasured time-varying confounders: psycnet.apa.org/record/2025-...

psycnet.apa.orgAPA PsycNet
Julia M. Rohrer@dingdingpeng.the100.ci

New blog post! Let's say you've measured two variables repeatedly and want to investigate how one affects the other over time. Here are some recommendations for how to do that well. www.the100.ci/2025/06/25/r...

Nicholas Judd reposted

🚨 “Good Description” with @annagbusse.bsky.social 🚨 What sets 'good' description apart from 'mere' description? We develop a framework for evaluating descriptive research, whether we are doing it as scholars or assessing it as readers. Two main contributions... 🔗📄 tinyurl.com/gooddesc

tinyurl.comgood_description/good_description_ddk_agb.pdf at main · ddekadt/good_descriptionHomepage of "Good Description" by Daniel de Kadt & Anna Grzymala-Busse - ddekadt/good_description

Nicholas Judd reposted

Choose Science. Choose Europe. A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open. With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond. Apply by 10 September → europa.eu/!fBTMgF

Nicholas Judd reposted

Are you an international early career scholar considering spending time in the Netherlands? We likely have capacity to host a Marie Curie Fellow if you are interested. Our lab (lifespancognitivedynamics.com) works on modeling cognitive change in early or later life, at short and long timescales.