Archives for posts with tag: addiction

Feeling Threatened Makes Us Nicer“Perceived menace makes people kinder to their kin but nastier to outsiders. Whether they use this strategy depends on family size.” – hmmm. maybe. part of the study was done on WEIRD students, so … hmmm.

Implicit Race Bias Increases the Differences in the Neural Represen-tations of Black and White Faces“[T]he ways in which Black and White faces are represented in this brain region [fusiform face area] differ for people with a stronger, implicit race bias compared to people with less or no bias. This implies that people with stronger, negative implicit race attitudes may actually perceive Black and White faces to look more different.” – or maybe people who perceive black/white faces to look more different have stronger, negative race attitudes? – original research article here.

Gene flow between Indian populations and Australasia ~4,000 years ago – from dienekes. see also A Three-Hour Tour from greg cochran. (i loved that show! (^_^) )

Genealogy Databases Enable Naming of Anonymous DNA Donors – oops. see also: Matching names to genes: the end of genetic privacy?

HBD: An Abbreviated History of Quisqueya and the Rise of Today’s Dominicans (and Haitians) – from nelson!

The Human Varieties Global IQ Dataset“I’m going to try and use Human Varieties to tabulate a more thorough, immediate, and accurate dataset of international intelligence studies. A dataset that is participatory, updated frequently, and available for download.” – jason malloy’s excellent goal to (single-handedly!) make global iq data open source. yay! (^_^)

Study Discovers DNA That Tells Mice How to Construct Their Homes“The research could eventually lead to a better understanding of what kind of internal reward system motivates mice to dig, or tells them to stop. And although humans do not dig burrows, that, said the leader of the three-person research team, Hopi E. Hoekstra of Harvard, could ‘tell us something about behavioral variation in humans.'”

‘Adventurous’ Woman Needed as Surrogate for Neanderthal Baby – holy cr*p! – via charles!

The Danger of Making Science Political“Many more scientists identify as Democrats than as Republicans…. [B]y some polls only 6 percent of scientists are Republican, and in the recent U.S. Presidential election, 68 science Nobel Prize winners endorsed the Democratic nominee Barack Obama over the Republican candidate Mitt Romney.”

People with low risk for cocaine dependence have differently shaped brain to those with addiction“New research from the University of Cambridge has found that recreational drug users who have not developed a dependence have an abnormally large frontal lobe, the section of the brain implicated in self-control.”

Many researchers taking a different view of pedophilia“Pedophilia once was thought to stem from psychological influences early in life. Now, many experts view it as a deep-rooted predisposition that does not change.”

Scientific evidence that you probably don’t have free will

Like Lance Armstrong, we are all liars, experts say“During a 10-minute conversation between two strangers, 60% lied at least once, Feldman reported in a 2002 study in the journal Basic and Applied Social Psychology…. Though men were more likely to lie to make themselves feel good, women more often lied to make their conversation partner feel good. Either way, Feldman said, the urge to make oneself likable and competent was a powerful motivator.”

Got milk? Then you might get a Nobel Prize, study suggests“[C]ountries in which people drink the most milk, per capita, also win the most Nobel Prizes, per capita….” – (~_^)

The Truth behind the HBD cult prt 1 – << only good for a laugh. no, really! – via jayman!

bonus: Portraits of ‘sworn virgins’ of Albania fascinate“Northern Albanian women … live and dress as men in order to provide for their families.”

bonus bonus: Great Oxidation Event: More oxygen through multicellularity

bonus bonus bonus: There Are Whales Alive Today Who Were Born Before Moby Dick Was Written – cool!

bonus bonus bonus bonus: Chinese migration to Angola tops 250,000

(note: comments do not require an email. albanian sworn virgin.)

Finland & Japan – exceptions to “the rule”? – from jayman!

Genetic pacification in medieval Europe – from peter frost!

Scientists May Have Finally Unlocked Puzzle of Why People Are Gay – an epigenetic cause of gayness?

Restless Genes – drd4.

Reconstructed Face of Extinct “Hobbit” Species Is Startlingly Humanlike

Polymorphisms and Load – (more stuff i barely understand) from greg cochran!

Penn Study shows resistance to cocaine addiction may be passed down from father to son – in rats anyway.

Where to be born vs. where people are being born – from the awesome epigone!

The mu opioid receptor genotype may be a marker for those who drink for alcohol’s rewarding effects – OPRM1.

bonus: Lead poisoning in Samurai kids linked to mom’s makeup

bonus bonus: OU Study Suggests the Bacterial Ecology That Lives on Humans Has Changed Dramatically in the Last 100 Years

bonus bonus bonus: Microbiome: Cultural differences“Studies of gut bacteria are beginning to untangle how diet affects health in old age — but determining cause and effect is tricky.”

bonus bonus bonus bonus: Art of cheese-making is 7,500 years old

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New DNA analysis shows ancient humans interbred with Denisovans“A new high-coverage DNA sequencing method reconstructs the full genome of Denisovans — relatives to both Neandertals and humans — from genetic fragments in a single finger bone.” see also Genome Brings Ancient Girl to Life.

Monogamy and the Immune System“[P]romiscuous mice had much more diversity in the genes related to their immune system.”

Why Humans Give Birth to Helpless Babies – metabolic crossover, not bipedalism.

Vitamin D may increase IVF success – depending on race“[W]hile white women can boost their IVF success rates with vitamin D, the opposite appears to be true for Asian women.”

At Last, Humans Get a Scientific Promotion – as opposed to a copernican demotion. (~_^) – from matt ridley.

Another Tale of Two Maps“In accordance with my Pioneer Hypothesis, fertility rates in Europe and East Asia are low because these regions are populated by people who do not descend from recent immigrants, having inhabited these areas since ancient times by in large. Hence, natural selection has favored slowly reproducing individuals (who are only marginally ‘natalist’ to even ‘anti-natalist’), to keep population under control.” – from jayman.

Wealthy families obey economics rather than evolution“A study in Sweden spanning five generations confirms that the wealthiest families tend to remain small, despite evolutionary pressures to have as many offspring as possible…. Evolutionarily, the model might only apply in safe countries like Sweden, which has one of the longest life expectancies in the world….”

National differences in female partner violence“Ethiopia has the highest percent ever being physically or sexually assault by a partner — 71 percent. Japan has the lowest with 15 percent.” – from the inductivist.

Republican men are the most politically informed – from the awesome epigone.

Analysis explores how religion and ethnicity shape the Asian-American vote“Asian Americans who are agnostic, atheist, Hindu and Muslim were more likely to hold liberal political views and were more likely to vote for Obama. Protestants and Catholics who were more likely to hold politically conservative views also supported Obama. Vietnamese Americans, many of whom are Catholic, were more likely to vote for John McCain.”

Addicted to the internet? It could be all in your genes – ruh roh.

Severe Diet Doesn’t Prolong Life, at Least in Monkeys – eat up!

A Turkish origin for Indo-European languages“Languages as diverse as English, Russian and Hindi can trace their roots back more than 8,000 years to Anatolia….”

bonus: Horse gait traced to single mutation“A single gene mutation in horses can endow them with a wider repertoire of gaits. The finding, reported this week in Nature, shows that some seemingly complex physical traits can have a simple genetic basis.”

bonus bonus: China’s Chaotic Health Care Drives Patient Attacks

(note: comments do not require an email. all the better to hear you with, my dear!)

Brains of addicts are inherently abnormal: study“Drug addicts have inherited abnormalities in some parts of the brain which interfere with impulse control, said a British study published in the United States on Thursday…. Scientists at the University of Cambridge compared the brains of addicts to their non-addicted siblings as well as to healthy, unrelated volunteers and found that the siblings shared many of the same weaknesses in their brains. That indicates that the brain vulnerabilities had a family origin….”

Sex-specific behaviors traced to hormone-controlled genes in the brain“The new evidence shows that the sex hormones – testosterone, estrogen, and progesterone – act in a key region of the brain, switching certain genes on and others off. ‘What this means is that complex behaviors like male mating or maternal care in mice can be deconstructed at the genetic level.'”

Gene related to fat preferences in humans found“A preference for fatty foods has a genetic basis, according to researchers, who discovered that people with certain forms of the CD36 gene [the AA form] may like high-fat foods more than those who have other forms of this gene.” – i betcha i don’t have that allele. fat. yuck! (^_^)

Jonathan Haidt Decodes the Tribal Psychology of Politics“Humans are 90-percent chimp, but also 10-percent bee—evolved to bind together for the good of the hive.” – bzzz. (^_^)

Shocker: Women’s rights do not bloom in Arab Spring – from mr. a. epigone.

DNA Turning Human Story Into a Tell-All“[F]aster and cheaper genetic sequencing technology, is helping scientists draw a surprisingly complex new picture of human origins. The new view is fast supplanting the traditional idea that modern humans triumphantly marched out of Africa about 50,000 years ago, replacing all other types that had gone before. Instead, the genetic analysis shows, modern humans encountered and bred with at least two groups of ancient humans in relatively recent times: the Neanderthals, who lived in Europe and Asia, dying out roughly 30,000 years ago, and a mysterious group known as the Denisovans, who lived in Asia and most likely vanished around the same time.”

Y-chromosome admixture in self-identified Australian Aboriginals“In total, ∼70% of Y chromosomes in the Aboriginal database could be classed as non-indigenous, with only 169 (129 unique haplotypes) or 22% of the total being associated with haplogroups denoting Aboriginal ancestry….” – @dienekes’ blog.

What’s Wrong With the Teenage Mind?“Children today reach puberty earlier and adulthood later. The result: A lot of teenage weirdness.”

Strength by outbreeding“‘US history has many virtues, among which is the fact that the US population is reconstituted every generation through a roughly 10 percent admixture by external immigration from throughout the world.'” – that’s a quote from robert trivers’ new book @evolving economics.

Castaway Lizards Offer New Look at Evolutionary Processes“Differences caused by ‘founder effect’ persist when populations adapt to new environments”

bonus: Quiet, Please: Unleashing ‘The Power Of Introverts’ – this might be the one and only time i’ll link to npr. ever. (~_^)

bonus bonus: ruh roh.

(note: comments do not require an email. or hard work and originality. (~_^) )

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