The study found faking a smirk is innate. True smiles like Roberts’ toothsome grin cause the eyes to twinkle and narrow and the cheeks to rise. Munawar Hosain / Getty Images fileFrom MSNBC/Live Science:
Study finds facial expressions are genetic — not learned
From sneers to full-blown smiles, our facial expressions are hardwired into our genes, suggests a new study.
The researchers compared the facial expressions from more than 4,800 photographs of sighted and blind judo athletes at the 2004 Summer Olympics and Paralympic Games.
The analyses showed sighted and blind individuals modified their expressions of emotion in the same way in accordance with the social context. For example, in the Paralympics, the athletes competed in a series of elimination rounds so that the final round of two athletes ended in the winner taking home a gold medal while the loser got a silver medal.
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