Robert lindsay beyond highbrow
The required sample size is of order 100s, or roughly a million in the case of cognitive ability. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. The main unknown parameter s (sparsity) is the number of loci which account for the bulk of the genetic variation. Using results from Compressed Sensing (L1-penalized regression), I estimate the statistical power required to characterize both linear and nonlinear models for quantitative traits. I describe some unpublished results concerning the genetic architecture of height and cognitive ability, which suggest that roughly 10k moderately rare causal variants of mostly negative effect are responsible for normal population variation. In the case of height analogous efforts are well under way. Due mainly to the rapidly decreasing cost of genotyping, it is possible that within the coming decade researchers will identify loci which account for a significant fraction of total g variation. The largest component of genetic variance for both height and intelligence is additive (linear), leading to important simplifications in predictive modeling and statistical estimation. Visit One News Page for Afro news and videos from around the world, aggregated from leading sources including newswires, newspapers and broadcast media. The main results concern the stability, validity (predictive power), and heritability of adult g. I begin with a brief review of psychometric measurements of intelligence, introducing the idea of a “general factor” or g score. How do genes affect cognitive ability or other human quantitative traits such as height or disease risk? Progress on this challenging question is likely to be significant in the near future. That is probably a short caricature, but there seems to be something real about it.On the genetic architecture of intelligence and other quantitative traits
Some say among Haitian and Benin voodoo practitioners that Whites and Asians were the first species reduced to a more fragile and specialized one but far easier to put to useful work by the process of trans-generational domestication and bodily modification by the first animal tamers: according to them, non-Blacks are born out of the will of malevolent sorcerers to dispose of population of dependent slaves by birth. The main mistake about that by those who see them as a parallel species closer to apes than man relies upon the infamous argument of neoteny: evolution from ape to man (so as devolution from man to ape as some religious fundamentalists postulate) is supposed to have happened through greater and greater retention at adult age of traits only the primitive species’ infants shows before losing them at adult age.Īfrican Blacks show many traits (though not all) of less or no neoteny compared to the mean European and even more compared to East Asians (for instance African babies learn to sit and adopt various other adult postures at an earlier age than other humans), but that may make an African a wilder human, NOT a lesser human … in the very same way Sub-Saharan Africa seems to be by its ecological vocation the conservatory of the wilder versions of so many other species, like the wild dogs, the wild asses (which include the zebra as well as countless other onagres), the wild buffaloes, and the famed wild elephants.Įuropeans are not more human than Africans, they are more domesticable and amenable to so-called civilized life, actually it is a more polite expression to say they are easier to enslave and put to hard work by neurological programming rather than by mere physical shackles only.