Dorsa Amir
@dorsaamir.bsky.social
4.8K followers 250 following 68 posts
Assistant Professor of Psychology at Duke University studying kids & culture. Director of the Mind & Culture Lab. Mom x3. Some people just want to watch the world learn. dorsaamir.com | mindandculturelab.com
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dorsaamir.bsky.social
Does the culture you grow up in shape the way you see the world? In a new Psych Review paper, @chazfirestone.bsky.social & I tackle this centuries-old question using the Müller-Lyer illusion as a case study. Come think through one of history's mysteries with us🧵(1/13):
Reposted by Dorsa Amir
julia-m-smith.bsky.social
If you could win a prize by guessing the number on a die 🎲 hidden under a cup, would you want to guess before the die was rolled, or after?
The odds of winning are the same in both, but they can feel different. 🧵
dorsaamir.bsky.social
A couple more examples from the same era. Quite stunning, no? And remarkably well preserved. I find these rather moving. Like, you’re actually looking at the faces of people from the past, here they are, looking back at you.
dorsaamir.bsky.social
While this looks like it could have been painted yesterday, it’s actually a 1,700 year old (!) portrait from a Fayum mummy in modern day Egypt. This is one of ~900 of these portraits from the era, which broke from a more stylized tradition, and represented the subject more naturally.
A naturalistic portrait of a woman’s face from a Fayum mummy
dorsaamir.bsky.social
Looking forward to following along! Such a cool project.
Reposted by Dorsa Amir
sheinalew.bsky.social
@durhampsych.bsky.social current has 5 (FIVE!!) PhD studentships being advertised!

3 to work with me on children as agents of cultural evolution

2 to work with @drboothroyd.bsky.social on examining school-based body image interventions.

Please share and apply!

www.durham.ac.uk/departments/...
Fees and Funding - Durham University
www.durham.ac.uk
dorsaamir.bsky.social
Other nautical terms we still use:

➡ Flagship:...The ship with the flag; I should have known this one
➡ Taken aback: When a ship's sails are caught aback, pushing the ship backwards
➡ Above board: On or above the open deck, in plain view
➡ Loose cannon: Literally a loose cannon on the ship
dorsaamir.bsky.social
Been reading recently about attempts to circumnavigate the globe & how 16th century ships pulled it off. Steering a ship was complicated & relied on hundreds of adjustments to complex rope systems. So, it often took a new sailor a long time to..... "learn the ropes"! So that's where that comes from.
Rigging on a carrack from 1500
Reposted by Dorsa Amir
Reposted by Dorsa Amir
manvir.bsky.social
Why do societies reliably develop strikingly similar traditions like dance songs, hero stories, shamanism & justice institutions?

In a new BBS target article, I propose a theory for such "super-attractors" + cultural evolution more broadly. Now open for commentary: www.cambridge.org/core/journal...
dorsaamir.bsky.social
A little write-up of our Psych Review paper (with @chazfirestone.bsky.social) on culture and visual illusions — out now in Slate! 👇
Reposted by Dorsa Amir
manymindspod.bsky.social
Children are often cast as passive vessels into which we pour culture. But children create cultures of their own—vibrant ones with special properties.

Just one of the topics discussed in our recent episode with @dorsaamir.bsky.social & @sheinalew.bsky.social!

Listen: disi.org/varieties-of...
dorsaamir.bsky.social
Next time you get worked up thinking you’re doing something wrong re: swaddling or nipple confusion or pacifiers or rocking to sleep or whatever, I’m willing to bet it’s not you, it’s your baby.
dorsaamir.bsky.social
Nothing like having fraternal twins to realize how big individual differences are. All baby advice seems to assume that babies are interchangeable but let me tell you: we treat them exactly the same & it is incredibly clear that they are two _very_ different people with very different preferences.
dorsaamir.bsky.social
This was such a fun conversation about childhood, play, and agency across cultures. Thanks for having @sheinalew.bsky.social & I on the show!
manymindspod.bsky.social
New episode!! 🎙️📣

A chat w/ @sheinalew.bsky.social & @dorsaamir.bsky.social about childhood across cultures.

Humans everywhere go through childhood—a time of learning, growth, and play. But this universal stage of life can look very different in different places.

Listen: disi.org/varieties-of...
Reposted by Dorsa Amir
manymindspod.bsky.social
New episode!! 🎙️📣

A chat w/ @sheinalew.bsky.social & @dorsaamir.bsky.social about childhood across cultures.

Humans everywhere go through childhood—a time of learning, growth, and play. But this universal stage of life can look very different in different places.

Listen: disi.org/varieties-of...
Reposted by Dorsa Amir
chazfirestone.bsky.social
i think our arguments are more like precision instruments but ok fine i will accept "sledgehammer" (@dorsaamir.bsky.social @anilseth.bsky.social @theguardian.com)
screenshot of an article from the guardian. the first sentence says "The second study, by Dorsa Amir and Chaz Firestone, takes a sledgehammer to this hypothesis, but for the much better-known illusion: the Müller-Lyer illusion" more article text:

There are many explanations for why the Müller-Lyer illusion is so effective. One of the more popular is that the arrowheads are interpreted by the brain as cues about three-dimensional depth, so our brains implicitly interpret the illusion as representing an object of some kind, with right angles and straight lines. This explanation fits neatly with the “carpentered world” hypothesis – and indeed a lot of early support for this hypothesis relied on apparent cultural variability in how the Müller-Lyer illusion is perceived.

In their study, Amir and Firestone carefully and convincingly dismantle this explanation. They point out that non-human animals experience the illusion, as shown in a range of studies in which animals (including guppies, pigeons and bearded dragons) are trained to prefer the longer of two lines, and then presented with the Müller-Lyer image. They show that it works without straight lines, and for touch as well as vision. They note that it even works for people who until recently have been blind, referencing an astonishing experiment in which nine children, blind from birth because of dense cataracts, were shown the illusion immediately after the cataracts were surgically removed. Not only had these children not seen highly carpentered environments – they hadn’t seen anything at all. After you absorb their analysis, it’s pretty clear that the Müller-Lyer illusion is not due to culturally specific exposure to carpentry.
dorsaamir.bsky.social
Look what you could publish (anonymously) in Nature in 1970.
Reposted by Dorsa Amir
dorsaamir.bsky.social
You could get away with a lot in the 1960s, eh?
dorsaamir.bsky.social
Hofstede then assigned a single, unchanging score for each dimension to each country, based on averages. No measure of variance or heterogeneity was reported in his results, which gives the false impression of cultural homogeneity.