The end of environmental inequality means the rise of genetic inequality
A few people have pointed me to Charles Murray’s comment at The Enterprise Blog, The Debate about Heritability of General Intelligence Radically Narrows, which alludes to the recent finding of genomic confirmation of the behavior genetic heritabi…
Half the variation in I.Q. due to variation in genes
A new paper in Molecular Psychiatry has been reported on extensively in the media, and readers have mentioned it several times in the comments. I read it. It’s titled Genome-wide association studies establish that human intelligence is highly her…
The end of evolutionary psychology
A new paper in PLoS Biology is rather like the last person to leave turning the light off. Evolutionary psychology as we understood it in the 1980s and 1990s is over. Darwin in Mind: New Opportunities for Evolutionary Psychology:
None of the aforementi…
Blank slate when you want it that way
Tim Pawlenty debates Lady Gaga’s ‘Born This Way’ idea:
Gregory pressed, asking “Is being gay a choice?”
Pawlenty ultimately said, “I defer to the scientists in that regard.”
Again, Gregory pressed: “So yo…
Breaking the “Central Dogma”
Epigenetics is making it “big time,” Slate has a review up of the new book Epigenetics: The Ultimate Mystery of Inheritance. In case you don’t know epigenetics in terms of “what it means/why it matters” holds out the promi…
Does heritability of political orientation matter?
At The Intersection Chris Mooney points to new research which reiterates that 1) political ideology exhibits some heritability, 2) and, there are associations between political ideology and specific genes. I’ll set #2 aside for now, because this …
Parents don’t matter that much
Update: Stephen Dubner emailed me, and pointed me to this much longer segment which has a lot of Bryan Caplan. So it seems like the omission that I perceived was more of an issue with the production and editing process and constraints of the Marketplac…
Genetics existed before -omics
In the post below, Moderate marginal value to genomics, I left some things implicit. It turns out that this was an ill-considered decision. In reality my comments were simply more cryptic and opaque than implicit. This is pretty obvious because even th…
Moderate marginal value to genomics
In the comments below when it comes to genomic privacy I expressed a rather carefree attitude toward the future possibilities of dark prediction. Over at FARK.com the comments were rather uniformly alarmed, and influenced by Gattaca. For example: ̶…
I.Q. and genomics
In my experience most scientists are not too clear on the details of intelligence testing, perhaps because the whole area is somewhat in ill repute (except when you want to brag about your own SAT/GRE score!). This despite the fact that the profession …
California justice and DNA databases
Whenever people question me throwing my genotype into the public domain I express the honest opinion that genetic transparency is only a matter of time, and that the government will have all this stuff on file at some point within the next 10 years in …
How the “fierce people” came to be
The pith: there are differences between populations on genes which result in “novelty seeking.” These differences can be traced to migration out of Africa, and can’t be explained as an artifact of random genetic drift.
I’m not …
Love and arranged marriage
In the wake of yesterday’s review of a paper on heritable variance in trait preferences realized in romantic partners I couldn’t help but be intrigued by this new study out of PLoS ONE, Evolutionary History of Hunter-Gatherer Marriage Pract…
It’s about heritability….
I’m going to promote a comment:
…would knowing the root biological cause for differences which are already apparent to us change anything?
It’s obvious to you that there’s a contradiction here, but to the average educated person this…
Friends & genes & heritability
A few people have inquired of the PNAS paper On sharing genes with friends. I avoided comment in part because I’m skeptical of the findings. So much behavior genomics just hasn’t panned out over the long term, and is probably susceptible t…
The rules of attraction: the not so golden mean
Several people have inquired as to my opinion on the OKCupid post The Mathematics Of Beauty. I’ve blogged data from this dating website in the past, in particular, the differential race consciousness of women vs. men. But that material is a different class than the current post. As I have noted before, there is a […]
When genes matter for intelligence
Image credit: Aleksandra Pospiech One of the interesting and robust nuggets from behavior genetics is that heritability of psychological traits increases as one ages. Imagine for example you have a cohort of individuals you follow over their lives. At the age of 1 the heritability of I.Q. may be ~20%. This means that ~20% of […]
Knowledge of heritability, ignorance of genes
Does the Slut Gene Exist?:
The DRD4 study isn’t an isolated case of shaky genetic science. In fact, it joins a cadre of questionable scientific assertions that link single genes to much broader patterns of behavior.
The last decade has witnessed an explosion in genetics studies, and with it, a proliferation of sensational study results that run […]
The magical power of “genes”
Liberal Überblogger Matthew Yglesias, Pulling Back The Curtain on Human Behavior:
People sometimes seem to think that you could forestall a Gattaca-esque scenario of genetic transparency through privacy laws. But it seems to me that you’d actually need to go stronger, and not only guarantee the right to not have your genetic information disclosed. To prevent […]
On the “liberal gene”
Jim Manzi has already posted on the warranted skepticism of DRD4 being reported in the press as the “liberal gene.” Here’s the original paper. The main issue I have is not with the original research, but the inevitable confusions in the media which always arise. First, we know that complex behavioral phenotypes such as religiosity […]