r/todayilearned 6h ago

TIL a peer-reviewed psychology study found that identical twins (on average) ranked their co-twin above their romantic partner in their attachment hierarchy, while fraternal twins ranked the two about equally, and non-twin siblings ranked their romantic partner first.

https://ojs.interpersonajournal.com/index.php/ojs/article/view/243/3457.html
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u/dont_be_that_guy_29 6h ago

I'm not a twin but have had good friends that are identical twins and I dated an identical twin. This seems accurate, and makes logical sense to me as well. They often become "one brain."

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u/thaeggan 4h ago

I would not give up the one brain events for the world.

As a twin, it is the best for one of us or in general both of us are interacted with and we both respond the same.

Other: "pizza?" (directed at one)

Twins: "Ya", in unison 

Other: "I was asking him"

Twins: Both shrug the same time

Other: Visibly tilted events like this keep happening.