english: For instance, researchers  have studied facial expression in people who are born blind, hypothesizing that  if expressions are universal, they would be displayed  in the same way as sighted people.
non_english: Örneğin araştırmacılar görme engelli doğan kişilerin yüz ifadelerini inceledi, bu hipoteze göre eğer ifadeler evrenselse görebilen insanlarla aynı tepkiyi vereceklerdi.