Advertisement · 728 × 90

Posts by WILLIAM DARAN

Preview
Kevin Mitchell on Consciousness Explained Dive deep into consciousness with Kevin Mitchell's insights on agency and AI limitations.

Does Consciousness Require a Subject? The Self, Agency & AI Limitations www.mindbodysolution.org/kevin-mitche... - really enjoyed this chat with Tevin Naidu! 😊 cc @cdj.bsky.social @anilseth.bsky.social

2 months ago 46 10 5 4
Post image

Interesting new multi-population aDNA selection scan from Colbran, Terhorst, Mathieson. Loci that are estimated to be under selection in one population also show enrichment in other populations, consistent with parallel or pre-split selection.

www.biorxiv.org/content/10.6...

3 months ago 18 4 1 0
Preview
The missing heritability question is now (mostly) answered Not with a bang but with a whimper

I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵

5 months ago 352 168 14 21
Preview
Missing Heritability Revisited Following up on Sasha

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...

4 months ago 29 18 1 4
Welcome! You are invited to join a meeting: NeuroPhilo Salon. After registering, you will receive a confirmation email about joining the meeting. Welcome! You are invited to join a meeting: NeuroPhilo Salon. After registering, you will receive a confirmation email about joining the meeting.

𝗪𝗵𝗮𝘁 𝗮𝗿𝗲 𝗯𝗿𝗮𝗶𝗻 𝗻𝗲𝘁𝘄𝗼𝗿𝗸𝘀?
Do they even exist...?
Join @lucinauddin.bsky.social who will present, followed by discussion in the Neuroscience & Philosophy Salon.
Open to all.
Date: Dec 9, 12pm EST-US
Register: umd.zoom.us/meeting/regi... (you need a zoom account which is free)
#neuroskyence

4 months ago 43 18 1 1
Preview
MHRA-led study reveals major inconsistencies in global microbiome research International collaboration establishes new quality standards to improve reliability of gut health studies – improving accuracy to provide better diagnosis and treatment.

Wow

'MHRA-led study reveals major inconsistencies in global microbiome research'

www.gov.uk/government/n...

'Species identification varied from 63% to 100% accuracy across different methods, meaning that some laboratories failed to detect a third of the bacterial species present in the sample'

5 months ago 62 23 5 2
We are seeking new PhD and MSc students interested in avian physiology and behaviour.

We are seeking new PhD and MSc students interested in avian physiology and behaviour.

We are looking for new graduate students! Feel free to repost or pass along to prospective students

5 months ago 8 11 0 0
Advertisement
Preview
No Evidence the Gut Microbiome Causes Autism - Neuroscience News Experts reviewing decades of research conclude there is no scientific evidence that the gut microbiome causes autism.

No Evidence the Gut Microbiome Causes Autism neurosciencenews.com/asd-microbio...

5 months ago 47 21 4 0
First, offering these techniques increasingly reinforces human reproduction and health as a private commodity, where individuals rely on private markets and pay high premiums to procreate and try to maximize health outcomes. The development of welfare states has been strongly oriented towards decommodification, which implies making citizens independent of market systems and has significantly benefited public health by offering social protection to all citizens. Offering genetic predictions for embryos to improve health outcomes latches onto a privatization logic that does exactly the opposite and hence erodes a system based on social equality and solidarity. It is true that the commodification of health has a long history in the United States, where most of these companies are situated, and that European states have also shifted towards a privatization of healthcare in the last few decades. Yet, there is still a difference between offering medical services in private markets and making the reproduction of human life a site of commodification. We would argue that selling embryo selection based on genetic testing is a form of privatization and commodification on steroids that takes preventive and private medicine to an extreme.

First, offering these techniques increasingly reinforces human reproduction and health as a private commodity, where individuals rely on private markets and pay high premiums to procreate and try to maximize health outcomes. The development of welfare states has been strongly oriented towards decommodification, which implies making citizens independent of market systems and has significantly benefited public health by offering social protection to all citizens. Offering genetic predictions for embryos to improve health outcomes latches onto a privatization logic that does exactly the opposite and hence erodes a system based on social equality and solidarity. It is true that the commodification of health has a long history in the United States, where most of these companies are situated, and that European states have also shifted towards a privatization of healthcare in the last few decades. Yet, there is still a difference between offering medical services in private markets and making the reproduction of human life a site of commodification. We would argue that selling embryo selection based on genetic testing is a form of privatization and commodification on steroids that takes preventive and private medicine to an extreme.

"We would argue that selling embryo selection based on genetic testing is a form of privatization and commodification on steroids that takes preventive and private medicine to an extreme."

5 months ago 9 3 1 0

Have read it! It's brilliant and neat paper! Congratulations and thanks to your group!

5 months ago 3 0 0 0
Preview
Genetic associations with educational fields - Nature Genetics Genome-wide analyses of 10 educational fields identify 17 associated loci. Analysis of genetic clustering across specializations identifies two key dimensions that show genetic overlap with personalit...

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...

5 months ago 48 18 1 7
Preview
Estimation and mapping of the missing heritability of human phenotypes - Nature WGS data were used from 347,630 individuals with European ancestry in the UK Biobank to obtain high-precision estimates of coding and non-coding rare variant heritability for 34 co...

First time on Bsky and first big announcement!

I am excited to announce that our new study explaining the missing heritability of many phenotypes using WGS data from ~347,000 UK Biobank participants has just been published in @Nature.

Our manuscript is here: www.nature.com/articles/s41....

5 months ago 220 70 8 5

Thrilled to share the second half of my PhD work here!

We show how data on expression quantitative trait loci (eQTL) relates to the structure of gene regulatory networks (GRN). Much of the GRN / eQTL picture is unmapped, but what we do have says a lot… (1/)

doi.org/10.1101/2025...

8 months ago 72 26 6 1
 Heritability and target size underlie differences between trait architectures:

examples for three traits. Top: Height (blue) and platelet crit (red) have the same heritability per site h2/L, but height has a much higher mutational target size L. This results in many more hits for height (1533) than for platelet crit (648) (2 left panels). However, the marginal distributions of effect sizes, MAFs, and z-scores of hits are nearly identical for the two traits (3 right panels). Middle: Height (blue) and FEV1 (gold) differ in h2/L, but have similar L. Consequently, the joint distribution of z-scores and MAFs of their hits are markedly different (2 left panels), as are the marginal distributions of hit effect sizes, MAFs and z-scores (right). Bottom: After scaling by their respective , and imposing the more stringent scaled significance threshold (corresponding to FEV1) for both traits, the joint distribution of z-scores and MAFs of their hits (2 left panels) and the corresponding marginal distributions (3 right panels) are highly similar.

Heritability and target size underlie differences between trait architectures: examples for three traits. Top: Height (blue) and platelet crit (red) have the same heritability per site h2/L, but height has a much higher mutational target size L. This results in many more hits for height (1533) than for platelet crit (648) (2 left panels). However, the marginal distributions of effect sizes, MAFs, and z-scores of hits are nearly identical for the two traits (3 right panels). Middle: Height (blue) and FEV1 (gold) differ in h2/L, but have similar L. Consequently, the joint distribution of z-scores and MAFs of their hits are markedly different (2 left panels), as are the marginal distributions of hit effect sizes, MAFs and z-scores (right). Bottom: After scaling by their respective , and imposing the more stringent scaled significance threshold (corresponding to FEV1) for both traits, the joint distribution of z-scores and MAFs of their hits (2 left panels) and the corresponding marginal distributions (3 right panels) are highly similar.

Genetic architectures of #ComplexTraits vary widely. @yuvalsim.bsky.social @jkpritch.bsky.social @gs2747.bsky.social &co show these diffs arise from mutational target size & heritability per site; when controlled for, all tested traits have similar architectures @plosbiology.org 🧪 plos.io/47mZXqT

6 months ago 26 15 0 0
Advertisement

I'm recruiting a postdoc for my group (based in beautiful Eugene, OR). Please get in touch if you're interested, esp if you'd like to chat at #ASHG25!

6 months ago 40 42 0 1
Applied Biostatistics

Proud of the latest edition of my free intro biostats book.

gitrepo: github.com/ybrandvain/b...
book: ybrandvain.github.io/biostats/

Not complete but at a good point to take a break, and I think its quite usable

dm me with comments , ideas etc

5 months ago 66 46 1 1
Preview
Classifying Convergences in the Light of Horizontal Gene Transfer: Epaktovars and Xenotypes Abstract. The classification of living systems presents significant challenges due to the prevalence of gene transfer between genomes. Traditional taxonomi

I've often wondered about what we should call organisms whose similarity might be due to acquired genetic material. It got a little complicated, but I made a stab at it here

Classifying Convergences in the Light of Horizontal Gene Transfer: Epaktovars and Xenotypes academic.oup.com/mbe/article/...

5 months ago 37 15 2 3
Preview
A high-coverage genome from a 200,000-year-old Denisovan Denisovans, an extinct sister group of Neandertals who lived in Eastern Eurasia during the Middle and Late Pleistocene, are known only from a handful of skeletal remains and limited genetic data, incl...

A hearty Denisovan stew ripe with stories of mixing and more mixing, even with a third more ‘archaic’ hominid.

www.biorxiv.org/content/10.1...

6 months ago 50 19 1 1

Sorry non-US friends--your science is still lovely but we're busy today starting the overthrow of a dictator

6 months ago 48 5 2 0
Post image Post image

Why studies about reconstructing the past based on contemporary DNA makes me think of the streetlight effect

open.substack.com/pub/kostaska...

7 months ago 14 5 1 1
Preview
Genetics of human handedness: microtubules and beyond Handedness (i.e., the preference to use either the left or the right hand for fine motor tasks) is a widely investigated trait. Handedness heritability is consistently estimated to be 25%. After decad...

Great review on The Genetics of Human Handedness: Microtubules and Beyond www.cell.com/trends/genet... - handedness is such an interesting phenotype!

6 months ago 151 55 5 9
Post image

Well, it could just be the processes of development themselves. They're noisy. There's just a lot of stochasticity and sometimes that can push development down one pathway versus another. journals.plos.org/plosbiology/...

6 months ago 33 7 2 0
Preview
Your Genes Are Simply Not Enough to Explain How Smart You Are Seven years ago, I took a bet with Charles Murray about whether we’d basically understand the genetics of intelligence by now.

In 2018, Charles Murray challenged me to a bet: "We will understand IQ genetically—I think most of the picture will have been filled in by 2025—there will still be blanks—but we’ll know basically what’s going on." It's now 2025, and I claim a win. I write about it in The Atlantic.

6 months ago 347 125 11 18
Advertisement

"Social science genetics encompasses the longest causal chain in science: from DNA to human culture."

7 months ago 16 4 0 0
Preview
A Love Letter to Social Science Genetics Some people call social science genetics a minefield. Others call it dangerous, even irresponsible. I call it the most promising field in life sciences.

Some people call it a minefield. Others call it dangerous, even irresponsible. I call it the most promising field in life sciences.

My love letter to social science genetics: communities.springernature.com/posts/a-love...

7 months ago 61 19 1 7
Preview
Beneath the surface of the sum When genetic interactions matter and when they don't

I wrote about gene-gene interactions (epistasis) and the implications for heritability, trait definitions, natural selection, and therapeutic interventions. Biology is clearly full of causal interactions, so why don't we see them in the data? A 🧵:

7 months ago 145 47 1 6
Preview
Exposure accumulation drives age-dependent disease architectures and polygenic risk scores Our understanding of the dependence of the genetic and environmental architecture of common diseases on age is incomplete. Here, we use longitudinal data to quantify age-dependent genetic and environm...

Excited to share our latest manuscript, "Exposure accumulation drives age-dependent disease architectures and polygenic risk scores," led by Xilin Jiang: www.medrxiv.org/content/10.1...

I am attempting an explainer thread for the first time here:
(I am usually too exhausted to post one)

7 months ago 54 25 2 4
Preview
Direct effect of genetic ancestry on complex traits in a Mexican population Human 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...

Brilliant 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...

7 months ago 42 20 1 1
Preview
The AADR Visualizer: An ArcGIS Online Visualizer for ancient human DNA from the Allen Ancient DNA Resource AbstractMotivation. The AADR Visualizer is designed to be a public, user-friendly, web-based graphical user interface for visualizing and filtering ancient

The AADR Visualizer: An ArcGIS Online Visualizer for ancient human DNA from the Allen Ancient DNA Resource academic.oup.com/bioinformati...

8 months ago 17 9 0 0
Preview
A Neuroscientist’s Bold Proposal for Solving Brain Disorders Author Nicole Rust shares 5 key insights from her new book, Elusive Cures: Why Neuroscience Hasn’t Solved Brain Disorders―and How We Can Change That.

Check out these 5 Big Ideas (audio and text) from my new book, Elusive Cures. All centered around the question: What will it take to treat & cure the most formidable brain disorders?

Thank you @nextbigidea.bsky.social for selecting Elusive Cures to profile.

urldefense.com/v3/__https:/...

9 months ago 51 18 1 2