Archives for posts with tag: genes and alcoholism

Ancient Jomon people not like present-day East Asians“‘We found a unique genetic position of the Jomon people who had diverged before the diversification of most of present-day East Eurasian populations including East Eurasian Islanders. This indicates that Jomon people were a basal population in East Eurasia and genetically isolated from other East Eurasians for long time.'” – h/t charles!

Uncovering the Genetic History of the Present-Day Greenlandic Population“[W]e analyzed ∼200,000 SNPs from more than 10% of the adult Greenlandic population (n = 4,674). We found that recent gene flow from Europe has had a substantial impact on the population: more than 80% of the Greenlanders have some European ancestry (on average ∼25% of their genome). However, we also found that the amount of recent European gene flow varies across Greenland and is far smaller in the more historically isolated areas in the north and east and in the small villages in the south. Furthermore, we found that there is substantial population structure in the Inuit genetic component of the Greenlanders and that individuals from the east, west, and north can be distinguished from each other. Moreover, the genetic differences in the Inuit ancestry are consistent with a single colonization wave of the island from north to west to south to east. Although it has been speculated that there has been historical admixture between the Norse Vikings who lived in Greenland for a limited period ∼600–1,000 years ago and the Inuit, we found no evidence supporting this hypothesis. Similarly, we found no evidence supporting a previously hypothesized admixture event between the Inuit in East Greenland and the Dorset people, who lived in Greenland before the Inuit.” – h/t razib!

Y chromosome super-fathers“Most of these lineages are so young that there are good chances that their founders were figures from history or mythology.” – from dienekes.

Bone Tool Discovered at Neanderthal Site in France“A bone tool from the Grotte du Bison at Arcy-sur-Cure in France is further evidence that Neanderthals had abilities usually attributed solely to modern humans….”

Early age of alcohol initiation is not the cause of alcohol use disorders in adulthood, but is a major indicator of genetic risk. A population-based twin study.“The association between early age of alcohol initiation and alcohol use disorders in later life does not reflect a causal relationship, but is due almost entirely to common genetic risk factors.”

α-Actinin-3: Why Gene Loss Is an Evolutionary Gain – h/t billare! who tweeted: “Positive selection for broken proteins: Derived ACTN3 mutation seems to help fast-twitch muscles fatigue less slowly.”

Do viruses make us smarter?“[R]etroviruses seem to play a central role in the basic functions of the brain, more specifically in the regulation of which genes are to be expressed, and when.”

Estimating the genotypic intelligence of populations and assessing the impact of socioeconomic factors and migrations – from davide piffer who tweeted: “New version of my paper with genetic distances. Migrations or drift less likely to explain results.” also, from the paper: “The results also provide preliminary evidence in favor of the hypothesis that poor environmental conditions (i.e. economic and sociocultural) tend to depress national IQ scores. Countries with lower per capita GDP and a lower index of Human Development tended to have larger positive ‘residuals’, that is the difference between the score predicted by the regression (of IQs for developed countries on the 4 SNPs g factor) and the actually measured IQ was larger in countries with lower GDP and HDI (r around 0.7). Thus, poorer and less developed countries have yet to reach their full intellectual potential. The results of this study indicate that the gaps in intellectual performance between some populations can be narrowed via adequate improvement of environmental conditions, however the overall pattern of intellectual scores is due to relatively stable and fixed (genetic) factors and cannot be substantially altered.” – see also terrific post from anatoly karlin on this paper!: Genetics, IQ, and Convergence.

Evidence of polygenic selection on human stature inferred from spatial distribution of allele frequencies – also from davide piffer.

Geographical Variation in Dementia: Examining the Role of Environmental Factors in Sweden and Scotland“We found a 2- to 3-fold geographical variation in dementia odds in Sweden, after twin random effects — likely to capture genetic and shared environmental variance — were removed. In Scotland, we found no variation in dementia odds in childhood but substantial variation, following a broadly similar pattern to Sweden, by adulthood. Conclusion: There is geographical variation in dementia rates.” – h/t erwin schmidt! – also Genetics and Underlying Pathology of Dementia.

Archaeogenomic insights into the adaptation of plants to the human environment: pushing plant–hominin co-evolution back to the Pliocene“The colonization of the human environment by plants, and the consequent evolution of domesticated forms is increasingly being viewed as a co-evolutionary plant–human process that occurred over a long time period, with evidence for the co-evolutionary relationship between plants and humans reaching ever deeper into the hominin past. This developing view is characterized by a change in emphasis on the drivers of evolution in the case of plants. Rather than individual species being passive recipients of artificial selection pressures and ultimately becoming domesticates, entire plant communities adapted to the human environment.” – h/t george perry!

Son of Edar“[S]omebody should look for characteristic racial differences in tears, sebaceous glands, Meobomian glands, and salivary glands. And possibly fingernails. They may well exist, be driven by this EDAR mutation, and some might play a role in its selective advantage.” – from greg cochran.

Quality vs Quantity“To the extent that human capital is a product of genetic factors (quite a lot), this tradeoff *does not exist*.” – also from greg cochran.

Lower mortality rates among Asian, Hispanic lupus patients“Asian and Hispanic patients with systemic lupus erythematosus (SLE) have lower mortality rates compared to Black, White, or Native Americans with the disease, scientists have found. Findings indicate that the risk for death among White patients is much lower than in Black and Native American SLE patients.”

Genetic errors linked to more ALS cases than scientists had thought – h/t jayman!

Is your face special?“Face recognition is highly heritable and weakly related to *g* so it probably has its own module, or a favoured set of circuits which only partly taps into the central processor power of general intelligence. So, not only is your face is special. but your specialised ability to recognise faces is even more special.” – from dr. james thompson.

Are flu shots effective? Your genetics determine how the immune system responds

Environment, more than genetics, shapes immune system“Everyone’s immune system is slightly different—a unique mixture of hundreds of these cells and proteins. But the main driver of this variation is unclear. Although scientists know that our immune system can adapt to our environment—that’s why vaccines work, for instance—it is also built by our genes…. After recruiting 210 identical and fraternal twins between 8 and 82 years old, Davis and colleagues took blood samples and measured more than 200 parameters of their immune systems. For example, they measured the numbers of 95 kinds of immune cells and 51 kinds of proteins. Today, the researchers report online in Cell that identical twins’ immune systems were too different for the variation to boil down to genetics. Indeed, environment overshadowed inheritance in three-quarters of the measurements, and half showed no measurable genetic influence. Moreover, younger twins were more similar than were older twins, evidence that as the twins aged and were exposed to different environments, their immune systems diverged over time.”

Levels of Selection Are Artefacts of Different Fitness Temporal Measures“I show by comparing the fitness of individuals with that of collectives of individuals in the same environment and over the same period of time – as required to decide if one or more levels of selection is acting in a population – that the selection of collectives is a by-product of selection at the individual level; thus, talking about two or more levels of selection represents merely a different perspective on one and the same process.”

Does incidental disgust amplify moral judgment? A meta-analytic review of experimental evidence [pdf] – “We meta-analyzed all available studies, published and unpublished, that experimentally manipulated incidental disgust prior to or concurrent with a moral judgment task (k=50). We found that there is evidence for a small amplification effect of disgust (d=.11), which is strongest for gustatory/olfactory modes of disgust induction. However, there is also some suggestion of publication bias in this literature, and when this is accounted for, the effect disappears entirely (d=-.01). Moreover, prevalent confounds mean that the effect size that we estimate is best interpreted as an upper bound on the size of the amplification effect. The results of this meta-analysis argue against strong claims about the causal role of affect in moral judgment and suggest a need for new, more rigorous research on this topic.” – h/t stuart ritchie!

The DNA photofit: Amazing breakthrough means police can tell suspect’s colour, height and even age – from a tiny speck of blood – daily mail.

The Coming Stability? The Decline of Warfare in Africa and Implications for International Security“The years 2010–2013 saw an increase of 35 per cent in African battle deaths over 2005–2010, but they still are 87 per cent lower than the 1990–1999 average…. Consequently, there is no Africa exception to the systemic shift towards lower levels of armed conflict.” – h/t mugwump!

The Scariest Explanation for America’s Vast Prison Population: We Want It That Way“[I]n federal prisons at least, Hispanics have overtaken blacks in the dubious distinction of being the most disproportionately imprisoned. Nor can we blame the war on drugs. The idea that vast numbers of Americans are in prison for smoking pot or snorting blow turns out to be a fantasy. About 20 percent of inmates are in for drug-related crimes, but those crimes are rarely limited to their own casual use. According to a 2004 estimate, only about 12,000 people were incarcerated for simple possession, without intent to traffic or distribute.”

Sorry, liberals, Scandinavian countries aren’t utopias“Finland, which tops the charts in many surveys (they’re the least corrupt people on Earth, its per-capita income is the highest in Western Europe and Helsinki often tops polls of the best cities), is also a leader in categories like alcoholism, murder (highest rate in Western Europe), suicide and antidepressant usage….” – [huh. even with all that tango dancing!] – “It turns out that the ‘warrior gene’ — actually the enzyme monoamine oxidase A, which is linked to impulsive behavior, violence and alcoholism — is especially prevalent in Finland. ‘Dark’ doesn’t just describe winter in the Arctic suburbs, it applies to the Finnish character.” – h/t ninja economics!

The relationship between anti-gay prejudice and the categorization of sexual orientation“[I]ndividuals reporting higher levels of anti-gay bias appear to be less accurate judges of sexual orientation.” but “Italians reporting greater anti-gay bias miscategorized fewer gay faces as straight.” – h/t ben southwood!

Legal Recognition of Same-Sex Couples and Family Formation“It has long been debated how legalizing same-sex marriage would affect (different-sex) family formation. In this article, I use data on OECD member countries for the period 1980–2009 to examine the effects of the legal recognition of same-sex couples (through marriage or an alternative institution) on different-sex marriage, divorce, and extramarital births. Estimates from difference-in-difference models indicate that the introduction of same-sex marriage or of alternative institutions has no negative effects on family formation…. In addition, the country-by-country case studies provide evidence of homogeneity of the estimated effects.”

Pair-Bonding, Romantic Love, and Evolution – The Curious Case of Homo sapiens“We conclude there is interdisciplinary support for the claim that romantic love and pair-bonding, along with alloparenting, played critical roles in the evolution of Homo sapiens.”

Sex ratio effects on reproductive strategies in humans – among the makushi people of guyana.

Antiquity of dairy farming in Ireland revealed“Research published today in the Journal of Environmental Archaeology shows that dairying on the island goes back approximately 6,000 years, revealed through traces of ancient dairy fats found in pots dating to around 4,000 to 2,500 BC.” – h/t frau katze!

The origin and evolution of maize in the American Southwest

A Breeder Apart: Farmers Say Goodbye to the Bull Who Sired 500,000 Offspring“Fans Commemorate ‘Toystory,’ a Dairy Legend With a Ravenous Libido” – the genghis khan of bulls! h/t mr. robert ford!

Items lost in the Stone Age are found in melting glaciers“Mittens, shoes, weapons, walking sticks – lost in the high mountains of Norway thousands of years ago – are now emerging from melting ice.”

bonus: ‘I can haz genomes’: cats claw their way into genetics“Canine dominance bows to tabby chic as cat sequencing takes off.”

bonus bonus: Some Microbes Can Eat And Breathe Electricity – whoa.

bonus bonus bonus: Britain’s oldest person Ethel Lang dies aged 114“Ethel Lang was believed to be the last person living in the UK who was born in the reign of Queen Victoria.” – h/t ed west!

bonus bonus bonus bonus: Two New Studies Posit At Least Two New Planets Out Beyond Pluto

bonus bonus bonus bonus bonus: Whaleworld: Looking for cetacean culture – h/t steve stewart williams! who tweeted: “Millions of years before human culture appeared, there was culture in the ocean.” – cool!

bonus bonus bonus bonus bonus bonus: Medieval Apps.

bonus bonus bonus bonus bonus bonus bonus: Archaeologists find 132-year-old Winchester rifle leaning against Nevada desert tree

bonus bonus bonus bonus bonus bonus bonus bonus: Irn Bru release 57 Scottish tartan labels and clan finder website promotion (~_^)

bonus bonus bonus bonus bonus bonus bonus bonus bonus: “At some German crossings you can play a game of Pong with the person standing at the other side.” (^_^)

bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus: If birds in a truck fly, does the truck get lighter? – hey…don’t bogart that joint, new scientist!

bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus: Kareem Abdul-Jabbar to Publish a Novel About Sherlock Holmes’s Brother Mycroft – danced a few dances with kareem! (^_^) (not a euphemism. for anything!)

(note: comments do not require an email. i can haz genomz?)

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‘Rare’ Gene Common in African Descendants, May Contribute to Heart Disease“Researchers at Weill Cornell Medical College have found that a genetic variation that is linked to increased levels of triglycerides — fats in the blood associated with disorders such as heart disease, type 2 diabetes, obesity and stroke — is far more common than previously believed and disproportionally affects people of African ancestry…. The finding offers a clue as to why Africans and people of African descent have an increased risk of cardiovascular disease and type 2 diabetes compared to many other populations, says the study’s senior author, Dr. Ronald Crystal, chairman of genetic medicine at Weill Cornell. African Americans with the variant had, on average, 52 percent higher triglyceride levels compared with blacks in the study who did not have the variant…. The gene variant the scientists studied is a single point mutation — a replacement of one of DNA segment with another — in the ApoE gene, which carries fats and other molecules through the blood.” – h/t hbd bibliography!

A gene mutation for excessive alcohol drinking found“UK researchers have discovered a gene that regulates alcohol consumption and when faulty can cause excessive drinking…. [M]ice with a genetic mutation to the gene Gabrb1 overwhelmingly preferred drinking alcohol over water, choosing to consume almost 85% of their daily fluid as drinks containing alcohol…. Dr Quentin Anstee, Consultant Hepatologist at Newcastle University, joint lead author said: ‘It’s amazing to think that a small change in the code for just one gene can have such profound effects on complex behaviours like alcohol consumption.’ – see also Firewater from greg cochran.

Predicting Human Body Height from DNA“Predicting tall stature from these 180 DNA variants resulted in an accuracy of 0.75 on a scale from 0.5 (meaning random prediction) to 1.0 (completely accurate prediction). ‘Although the achieved DNA-based prediction accuracy for tall stature is still somewhat lower than we previously established for eye color, hair color and age,’ said Kayser, ‘I expect that upcoming new knowledge on height genetics will further increase the accuracy in predicting tall stature, and eventually the full range of body height, from DNA.'”

Study Connects Dots Between Genes, Human Behavior“The team studied individuals with a rare disorder known as Williams syndrome. By measuring neural activity in the brain associated with the distinct language skills and facial recognition abilities that are typical of the syndrome, they showed that Williams is due not to a single gene but to distinct subsets of genes, hinting that the syndrome is more complex than originally thought.”

Different Gene Expression in Male, Female Brains May Help Explain Brain Disorder Differences“UCL scientists have shown that there are widespread differences in how genes, the basic building blocks of the human body, are expressed in men and women’s brains. Based on post-mortem adult human brain and spinal cord samples from over 100 individuals, scientists at the UCL Institute of Neurology were able to study the expression of every gene in 12 brain regions…. They found that the way that the genes are expressed in the brains of men and women were different in all major brain regions and these differences involved 2.5% of all the genes expressed in the brain.” – h/t heartiste!

Only two genes maketh the man…or mouse“The defining genetic feature of maleness, the Y chromosome, contains only two genes that are absolutely essential for male function – at least in mice.” – “male function” = producing sperm, apparently. and taking out the garbage of course. (~_^)

Male facial masculinity as a cue to health outcomes“Although both attractiveness and rated health were associated with better actual health in the past and future (mainly indexed by lower antibiotic use), results were mixed for masculinity. With respect to respiratory illnesses, facial masculinity (assessed using morphometric techniques) was associated with better past health but with worse future health.” – h/t hbd bibliography!

HPV: Sex, cancer and a virus“Human papillomavirus is causing a new form of head and neck cancer — leaving researchers scrambling to understand risk factors, tests and treatments.” – h/t john durant!

Gut bacteria could make cancer treatments more effective, researchers find“[M]ice with reduced levels of bacteria in their gut were less responsive to treatments than mice that had a normal microbiota.”

When We Lose Antibiotics, Here’s Everything Else We’ll Lose Too – *gulp* =/

Arroyo del Vizcaíno, Uruguay: a fossil-rich 30-ka-old megafaunal locality with cut-marked bones – evidence for humans in uruguay 30,000 years ago? hunting giant sloths?

Who Built Serpent Mound? – dunno.

Sexual selection on the American frontier – re. nineteenth century mormons – from jason collins.

Jealousy in a small-scale, natural fertility population: the roles of paternity, investment and love in jealous response – jealousy rates in a non-w.e.i.r.d. population (the himba of namibia) – “In this population, the majority of both men and women report greater distress over a sexual infidelity, with men reaching an almost unanimous consensus (96%). Despite the skew for both men and women, there is a significant sex difference in the direction predicted by the evolutionary hypothesis….” – h/t andrew badenoch!

Study examines potential evolutionary role of ‘sexual regret’ in human survival and reproduction“[The results] suggest that men are more likely to regret not taking action on a potential liaison, and women are more remorseful for engaging in one-time liaisons.”

A Hot Wife Means A Happier Marriage“[M]en are happier with attractive women and women don’t care as much about men’s looks. Stop the goddamned presses! You mean men and women are…*GASP*…different?” – @chateau heartiste. (^_^) – original research article.

Oxytocin leads to monogamy: Hormone stimulates the brain reward system when viewing the partnerthe luuuuuuuuv hormone! (^_^)

Promiscuous mouse moms bear sexier sons“Males make more pheromone if mama had access to many mates”

We can’t ignore the evidence: genes affect social mobility“Why do so many people fail to accept the overwhelming evidence that genes contribute to academic achievement and thereby social status?” – h/t ed west!

The Sour Grapes of Pisa – from staffan.

The envirome and the connectome: exploring the structural noise in the human brain associated with socioeconomic deprivation – from neuroskeptic: “People from deprived parts of Glasgow have brains that are more ‘random’ structurally than those from rich areas.” – and from jayman: “Of course IQ has nothing to do with it… ;)”

Poor people’s poor sense – from the awesome epigone.

Meat, egg and dairy nutrient essential for brain development“Asparagine, found in foods such as meat, eggs, and dairy products, was until now considered non-essential because it is produced naturally by the body. Researchers at the University of Montreal and its affiliated CHU Sainte-Justine Hospital found that the amino acid is essential for normal brain development. This is not the case for other organs.”

Different rates of first admissions for psychosis in migrant groups in Paris“Our findings suggest that Sub-Saharan migrants were identified as the most vulnerable migrant group for developing psychosis in France, but additional work is warranted to confirm these trends.” – h/t neuroskeptic! – see also Redneck Psychiatrists from greg cochran.

Nations of Canada – from jayman.

Another Look at ‘The Rise of the West’ – But With Better Numbers“The North Sea begins to diverge from the rest of Europe long before the ‘West’ begins its more famous split from ‘the rest….’ [W]e can pin point the beginning of this ‘little divergence’ with greater detail. In 1348 Holland’s GDP per capita was $876. England’s was $777. In less than 60 years time Holland’s jumps to $1,245 and England’s to 1090. The North Sea’s revolutionary divergence started at this time.” – from t.greer.

When it comes to diversity, most of us vote with our feet“Liberals are almost as likely to flee diversity as conservatives, according to new research by Prof Eric Kaufmann for Demos. Some 61 per cent of white people who were ‘very comfortable’ with mixed marriages (the best indicator of views on race) moved to whiter areas during the period, compared to 64 per cent of those who were ‘fairly uncomfortable’.” – from “utterly sh** in every way” ed west.

Race, Race, Race, Race, Race, Race, Race, Race, Race“*Race is real*. In aggregate, human populations *differ*. Because of those differences, their interests can differ, too — and that can lead to various kinds of unpleasantness. Birds of a feather, whether we approve or not, still tend to flock together.” – from malcolm pollack.

How to have a sensible conversation about immigration“The poor of the world are on the move, eager to live and work in rich nations. What are the consequences? Talking about them cannot be a taboo.” – h/t steve sailer!

3 Reasons Diversity Isn’t Working – @theden.

How Britain became ashamed of being Great: Major new book argues liberal self-loathing threatens the values that define our nation – a MUST READ from daniel hannan! buy the book, too: How We Invented Freedom & Why It Matters.

Study: Having daughters makes parents more likely to be Republican – i thought it was democrats? – and on that note: Does Having Sisters Make You Conservative? – h/t avi tuschman!

Atheists get sweaty when daring God“When you get anxious or emotionally aroused, you sweat. Not a lot, but enough to be detected using electrodes on the finger tips. And it turns out that if you take a bunch of atheists, and get them to dare god to do horrible things, they get sweaty.” – heh! (really small sample size, tho.) – h/t anatoly!

The brains of high functioning autistic individuals do not synchronize with those of others“Our ISC [InterSubject Correlations-ISCs] results suggest that the minds of ASD individuals do not ‘tick together’ with others while perceiving identical dynamic social interactions.” – no kidding?! (~_^)

Cleansing the scientific literature – from peter frost. see also Danish Progress in Suppressing Thoughtcrime from helian.

In Israel, a Push to Screen for Cancer Gene Leaves Many Conflicted“The country has one of the highest rates of breast cancer in the world, according to a World Health Organization report. And some leading scientists here are advocating what may be the first national screening campaign to test women for cancer-causing genetic mutations common among Jews — tests that are already forcing young women to make agonizing choices about what they want to know, when they want to know it and what to do with the information.”

The Neuroscientist Who Discovered He Was a Psychopath – h/t naturalismo!

10,000-year-old house uncovered outside Jerusalem“‘Here we have evidence of man’s transition to permanent dwellings'” – cool!

Here’s why wine snobs should probably be called bacteria snobs“Differences in wine quality between vineyards have long been attributed to processing techniques and seasonal variation. But research now suggests that regional differences between wines are shaped by microbes — specifically, fungi and bacteria. Cultivating certain grape microbes may actually improve wine flavor.”

bonus: FDA may begin seizing [23andMe] home DNA testing kits – losers. (the fda, i mean.)

bonus bonus: Do We Live in the Matrix? – yes.

bonus bonus bonus: Economics of Violence: What would it cost you if you didn’t fight back?“In my 30 years of researching violence, every victim of violence who lived to tell the tale said they had a ‘bad feeling’ before the actual attack…. If an alarm goes off, respond to it. Got a bad feeling? Address it. Something nagging at you? Stop and look into it. Don’t ignore these signals. Don’t rationalize and mentally correct them. Don’t dismiss them without assessing them. Your body is built for survival and one of its hard-wired systems is designed to alert you to danger.” – h/t mr. mangan, esq!

bonus bonus bonus bonus: Sexual violence in gang neighbourhoods [in the u.k] is ‘like that in war zones’ with girls as young as 11 being groomed and raped” – =/

bonus bonus bonus bonus bonus: Latest restaurant receipt hoax – from chuck @gucci little piggy.

bonus bonus bonus bonus bonus bonus: Banks Warn Fed They May Have To Start Charging Depositors – =/ – h/t charles!

bonus bonus bonus bonus bonus bonus bonus: Over 50,000 illegal Ethiopian workers sent home from Saudi Arabia

bonus bonus bonus bonus bonus bonus bonus bonus: Fabulous example of helpful Muslims in the UK: solving local blood feud – terrific. =/ – from frau katze.

bonus bonus bonus bonus bonus bonus bonus bonus bonus: China’s rich fleeing the country — with their fortunes – h/t randall parker! – also: China’s villages vanish amind rush for the cities.

bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus: Man sells testicle so he can buy a Nissan 370Z – (o_O)

bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus bonus: We’d rather eat turkey“Thanksgiving is that very special holiday when we take a break from our hectic everyday lives to spend quality time with our loved ones, rediscovering all the reasons why we don’t actually live with them.” – (~_^) – from dave barry.

(note: comments do not require an email. giant sloth!)

New data reveal extent of genetic overlap between major mental disordersgwas study**: “[T]he overlap was highest between schizophrenia and bipolar disorder; moderate for bipolar disorder and depression and for ADHD and depression; and low between schizophrenia and autism. Overall, common genetic variation accounted for 17-28 percent of risk for the illnesses.” (**that’s redundant, isn’t it? sorry.)

Common genes may underlie alcohol dependence, eating disorders“In a study of nearly 6,000 adult twins, researchers found that common genetic factors seemed to underlie both alcoholism and certain eating disorder symptoms—namely, binge eating and purging habits, such as self-induced vomiting or laxative abuse. Genes appeared to explain 38 percent to 53 percent of the risk of developing those disorders.”

Multiple Genes Manage How People Taste Sweeteners

As Humans Change Landscape, Brains of Some Animals Change, Too“A new study suggests that the brains of several small mammals, including those of the little brown bat, have grown bigger as humans have altered the animals’ living conditions.” – ruh roh.

African genes tracked back“[The researchers] saw signs reflecting two waves of migration: one about 3,000 years ago, of non-Africans entering east Africa, and a second one 900–1,800 years ago, as east Africans migrated to southern Africa and brought non-African genes along with them…. Because of this two-step migration, some Khoe-San groups who were thought to have been genetically quite isolated actually carry 1–5% non-African DNA….”

Study Says Oldest Known Human Y-Chromosome Branch Dates to 338,000 Years Ago – h/t michael anissimov!

Genetic Research Suggests Indian Caste System Began 1,900 Years Ago – h/t david pinsen! – and speaking of castes: Caste outside of India: black blacksmiths from steve sailer.

Handaxe design reveals distinct Neanderthal cultures“Two cultural traditions existed among Neanderthals living in what is now northern Europe between 115,000 to 35,000 years ago…. [T]wo separate handaxe traditions or designs existed – one in a region now spanning south-western France and Britain – the other in Germany and further to the East.”

The Behavioral Ecology of Chimpanzee War and Liberal Peace“[V]iolent aggression among humans and chimps is a flexible natural propensity that tends to be stronger in males than in females, and the expression of that propensity depends on the social circumstances that determine the relative costs and benefits of violent fighting.” – @darwinian conservatism.

Breast feeding, intelligence, and confounded researchers – from dr. james thompson.

Two Failures to Replicate High-Performance-Goal Priming Effects

Babies learn words before birth“Brain responses suggest infants can distinguish distinct sounds from altered versions.”

Women and eye color“There is…a sex difference, with women having a more diverse palette of eye colors.” – from peter frost.

Are atheists mentally ill? – via mr. mangan, esq.

How Personality Affects Fertility: Men’s and Women’s Personalities Linked to Likelihood That They Will Have Children“Men with neurotic personality traits are having fewer children compared to previous generations…. It also found that men who are extraverted and open tend to have more children, while women who rank as conscientious on personality tests tend to have fewer children, although these findings were constant across generations.” – study done in norway. – via hbd bibliography.

Human brains are hardwired for empathy, friendship, study shows

Kinship or Citizenship? – steve sailer reviews mark weiner‘s The Rule of the Clan.

There is no hope of democracy in the Middle East“Most people, in other times and other places, have lived in societies more like Game of Thrones than Borgen, clannish rather than democratic, where people feel their loyalty and duty is towards other members of their extended family or religious community. To get people to work in the best interests of strangers so that you accept their authority when they get more people into the polling booth than you, is an achievement, not a natural state…. Egypt is an ancient civilisation but it is a clannish society….” – from ed west. (^_^) see also: Ed West interview: debating the ‘illusions’ of a diverse society.

Whence Afro criminality? – @thosewhocansee.

Steven Pinker, Science, and “Scientism”“In reality, the issue here is not whether this imaginary ‘science’ object exists and, assuming it does, whether it is ‘good’ or ‘evil.’ It is about whether we should be empowered to learn things about the universe in which we live or not. The opponents of ‘scientism’ typically rail against such things as eugenics, Social Darwinism, and the atomic bomb. These are supposedly the creations of the ‘science’ object. But, in fact, they are no such thing.” – really good stuff @helian unbound. via hbd bibliography. also from h.u. (he’s on a roll this week): Of Ingroups, Outgroups and Ideology.

The Arab Spring has failed because constitutional democracy needs nation-states – via ed west. see also: Egyptian Mirages from thomas sowell – “However widespread the desire to be free, it is wholly different from a desire to live in a society where others are free.” – yup.

How the light gets out – re. consciousness: “…the attention schema theory. It says that awareness is not something magical that emerges from the functioning of the brain. When you look at the colour blue, for example, your brain doesn’t generate a subjective experience of blue. Instead, it acts as a computational device. It computes a description, then attributes an experience of blue to itself. The process is all descriptions and conclusions and computations. Subjective experience, in the theory, is something like a myth that the brain tells itself. The brain *insists* that it has subjective experience because, when it accesses its inner data, it finds that information.”

Notes from Beijing: About That Chinese Social Contract“The traditional Chinese social contract was not a compact between individuals and the state, but a compact between Chinese society as a whole and the state…. Self interested calculations of rational individuals coolly weighing their economic and political interests never really seemed to be part of the program.” – from t. greer.

Fragile and Dangerous – Men with Borderline Personality Disorder – from staffan.

23 Signs You’re Secretly An Introvert – 20 out of 23. (*^_^*) (no way i could give a talk to an audience of 500. No. Way.) – classic link: Caring for Your Introvert.

Genomic Differences Found in Types of Cervical Cancer“…the spectrum of cancer-related gene mutations in the two main subtypes of cervical cancer — adenocarcinoma and squamous cell carcinoma. In tests on 80 cervical tumor samples, the investigators found high rates of mutations in two genes: PIK3CA and KRAS. While PIK3CA mutations appeared in both subtypes, KRAS mutations were found only in adenocarcinomas.”

US behavioural research studies skew positive“US behavioural researchers have been handed a dubious distinction — they are more likely than their colleagues in other parts of the world to exaggerate findings, according to a study published today.”

Neolithic chefs spiced their food“Mineral grains from garlic-mustard seeds found in 6,000-year-old cooking pots.” – mmmmmmm!

Denmark’s historic claim to the Faroes in doubt as archaeologists find proof that islands were inhabited before arrival of first Norse colonists“Discovery indicates existence of sea-faring northern Europeans before Vikings.”

bonus: Birds know road speed limits“Crows, house sparrows and other species judge when to flee the asphalt by average traffic rates rather than an oncoming car’s speed.”

bonus bonus: Beetles eat greedy offspring Edinburgh University research finds“Burying beetles occasionally punish young who nag for food by eating those who pester them most…. It encourages the larvae to plead more honestly according to how hungry they are and not try to outdo their siblings by pestering their mother for food.” – so there!

bonus bonus bonus: Saudi Arabia’s War on Witchcraft“A special unit of the religious police pursues magical crime aggressively, and the convicted face death sentences.”

bonus bonus bonus bonus: Bacteria can cause pain on their own“Microbes caused discomfort in mice by activating nervous system, not immune response.”

bonus bonus bonus bonus bonus: World’s first pocket calculator goes up for auction: ‘Exceptionally rare’ 17th century machine made of wood could fetch £100,000

bonus bonus bonus bonus bonus bonus: Oldest globe to depict the New World may have been discovered

bonus bonus bonus bonus bonus bonus bonus: An update to Maslow’s hierarchy of needs

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Is Beauty in the Face of the Beholder?“We concluded that individuals, if given the opportunity, seek to promote ‘positive assortment’ for Self’s phenotype, especially when the level of similarity approaches an optimal point that is similar to Self without causing a conscious acknowledgment of the similarity.” – on assortative mating, via race/history/evolution notes.

3.4-7.9% Neandertal admixture in Eurasia?“‘Our analysis allows us — for the first time — to formally reject a history of ancestral population structure and instead reveals strong support for admixture from Neandertals into Eurasian populations at a higher rate (3.4%-7.9%) than suggested previously.'” – @dienekes’.

and speaking of neanderthals: Neanderthals made leather-working tools like those in use today.

Genetics and alcoholism“Abundant evidence indicates that alcohol dependence (alcoholism) is a complex genetic disease, with variations in a large number of genes affecting a person’s risk of alcoholism. Some of these genes have been identified, including two genes involved in the metabolism of alcohol (ADH1B and ALDH2) that have the strongest known affects on the risk of alcoholism. Studies continue to reveal other genes in which variants affect the risk of alcoholism or related traits, including GABRA2, CHRM2, KCNJ6 and AUTS2.”

Sense of smell has a genetic flavour“Richard Newcomb of the New Zealand Institute for Plant and Food Research (IPFR) in Auckland and his colleagues have found the most convincing evidence yet of a genetic basis to the differences in people’s odour perception.” – via hbd bibliography.

Immigration and inbreeding“[T]he more inbred a country is, the more restrictive the attitudes of its population are on the issues of immigration and citizenship. Conversely, the more outbred a country is, the more its inhabitants tend toward unrestricted open borders.” – from the awesome epigone.

Religious people are less intelligent than atheists, analysis of over 63 scientific studies stretching back over decades concludes“Study found ‘a reliable negative relation between intelligence and religiosity’ in 53 out of 63 studies.” – via nelson.

Jason Richwine and some Hispanic data“In summary, if one uses scholastic data as a measure of ability, then there was some significant narrowing of the White/Hispanic gap in the early 1980’s, but that reduced gap has persisted thereafter. This finding discomforts those who predicted that the gap would never change, and those who said it was closing fast and would shortly disappear. Both are wrong, are partially right.” – from dr. james thompson.

Why can’t we talk about IQ? – from jason richwine. (in case you live in a cave. (~_^) )

ORIGINAL PAPER: Strong genetic influence on a UK nationwide test of educational achievement at the end of compulsory education at age 16 – @dr. james thompson’s blog. also Revealed: how exam results owe more to genes than teaching“New research by Professor Robert Plomin shows genes are more important than we like to think.”

Archaeology: The milk revolution“When a single genetic mutation first let ancient Europeans drink milk, it set the stage for a continental upheaval.” – @nature. see also Impressed Ware and Linear Pottery – Linearbandkeramik from greg cochran.

Variable mutation rates – age of puberty and There can only be one! from greg cochran.

A Tentative Ranking of the Clannishness of the “Founding Fathers” and The Cavaliers – from jayman.

Race matters when a patient needs a stem cell or marrow transplant“If you become ill with a blood cancer or other disease that requires a stem cell transplant, here’s an uncomfortable fact: Your race matters.” – why that fact should be *uncomfortable*, i have no idea, but i do admit that i’m odd. – via nelson.

Population Structure of Hispanics in the United States: The Multi-Ethnic Study of Atherosclerosis“By comparing genetic ancestry of MESA Hispanic participants to reference samples representing worldwide diversity, we show major differences in ancestry of MESA Hispanics reflecting their Caucasian, African, and Native American origins, with finer differences corresponding to North-South geographic origins that separate MESA Mexican versus Central/South American samples. Based on our analysis, we define four subgroups of the MESA Hispanic cohort that show close agreement with the following self-identified regions of origin: Dominican/Cuban, Mexican, Central/South American, and Puerto Rican.” – via nelson.

Perception of skin color in sub-Saharan Africa and Great hair … and how it evolved – from peter frost.

Book Review: The Righteous Mind – Why Good People Are Divided by Politics and Religion (2012) by Jonathan Haidt – from staffan. also James Q. Wilson and the Defense of Moral Judgment.

Why We Profile – from m.g. @thosewhocansee.

Classical eugenics and genetic engineering – from elijah armstrong.

Smart Enough to Know Better: Intelligence Is Not a Remedy for Racism“Smart people are just as racist as their less intelligent peers — they’re just better at concealing their prejudice, according to a University of Michigan study.”

Maternal urge decreases by a QUARTER for every 15 extra IQ points – from satoshi kanazawa.

Autistic girls have more ‘masculine’ brains and are ‘affected by the condition in a different way to men’

Personality May Predict If You Like Spicy Foods“Those in the group who fell below the mean AISS [adverse to risk taking] rapidly disliked the meal as the burn increased. People who were above the mean AISS [prone to risk taking] had a consistently high liking of the meal even as the burn increased. Those in the mean group liked the meal less as the burn increased, but not nearly as rapidly as those below the mean.”

Gherardini DNA Sample Could Identify “Mona Lisa”

bonus: BBC is biased toward the left, study finds“The BBC is twice as likely to cover left-wing policy proposals than those that are right-wing, a study has found.”

bonus bonus: The smell of fear more powerful than previously realised

bonus bonus bonus: Psychological adaptation to urbanization, technology reflected in word usage over last 200 years

bonus bonus bonus bonus: Paying Teens Not to Have Sex: What Mississippi Can Learn From Malawi. also The amazing, surprising, Africa-driven demographic future of the Earth, in 9 charts via michael anissimov.

bonus bonus bonus bonus bonus: Monsters, Marvels, and the Birth of Science“History: How the unlikely and unexplainable, strange and terrifying, spawned the age of science.”

bonus bonus bonus bonus bonus bonus: The lost voices of Britain before WW1: German recording of British PoWs reveals a rural society rich in now extinct accents that varied from village to village

bonus bonus bonus bonus bonus bonus bonus: Five hundred new fairytales discovered in Germany“Collection of fairytales gathered by historian Franz Xaver von Schönwerth had been locked away in an archive in Regensburg for over 150 years.”

bonus bonus bonus bonus bonus bonus bonus bonus: and funniest online sentence from last week – from the derb (of course!): “The latest round of revelations about Weiner, reported by Radio Derb last week, have certainly caused his poll numbers to detumesce.” – heh! (^_^)

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