lego sandcrawler

<< possibly my two favorite words — together! awesome. (^_^)

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extraversion and culture

steve sailer says that peter frost says that some researchers found that extraversion is selected for in men in societies that practice polygyny.

as peter put it:

“Extraversion is part of the male toolkit for mating success. It is especially useful in societies where a high incidence of polygyny means too many men must compete for too few women.”

soooo … in an earlier post i pointed out that both austrian and png men decorate themselves with bird feathers but in sliiiiiightly different ways (and with different types of bird feathers, of course, dependent upon what sorts of birds live in austria vs. png).

i wondered why the differences? why are the pngers so much more ostentatious?

maybe i’ve got an answer to that question now. pngers are polygamous while austrians … eh, not so much. so, pngers are naturally (literally) more extraverted than austrians.

extraversion is, of course, a partially heritable trait. i.e. if ur an extrovert (or not), it’s in ur genes — at least in part.

which brings me back (at least in my mind) to my original question: where does culture come from? the answer seems to be: at least partially from our biology.

pngers decorate themselves like this >>

’cause as a population they must have more “genes for extroversion” (whatever those are).

meanwhile, back in austria >>

hbd. cool!

p.s. — peter also said:

“As a single man, I would spend close to $3,000 a year on dating. And that didn’t include things like buying a sportier-looking car.”

whoa. big spender! (~_^)

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senSAtional!

“A thirst for excitement is hidden in your genes”

“Sensation seeking—the urge to do exciting things—has been linked to dopamine, a chemical that carries messages in your brain. For a new study published in Psychological Science, a journal of the Association for Psychological Science, scientists analyzed genes in the dopamine system and found a group of mutations that help predict whether someone is inclined toward sensation seeking….”

here are some of those people…

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