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Are Extroverts Better Looking?
A study suggests extroversion is developmental. It's not all pretty.
www.psychologytoday.com
These scientists suggest something similar for extroversion: That good looking, strong babies and children are rewarded with lots of attention, which causes them to respond in kind, and a social style is born. The researchers found this effect even when controlling for androgen receptor gene polymorphism, a genetic explanation for extraversion, among other traits.
"All humans are equipped with a universal facultative mechanism that calibrates on the basis of feedback cues over the course of development," said Lukaszewski in a phone interview. "Even at a very young age, people respond more positively to healthy-looking physically attractive people. Those sorts of feedback cues can be influencing mechanisms in development."
The studies Lukaszewski and Roney undertook relied on various measures, self-reports and ratings, and independent ratings of attractiveness using standardized photos.
But then you have someone like, say, Julia Roberts, who is both beautiful and introverted*.
Lukaszewski said, "It can also be the case that through experience the child learns that how they get a lot of positive attention and rewards is developing skills that are facilitated through a more introverted orientation."
In other words, you can be genetically wired for extroversion but be rewarded for introverted behavior, therefore developing an introverted personality.