https://digitalcommons.usu.edu/fchd_facpub/236/
"Infant's Social Responses to Attractiveand Unattractive Faces: More Ev" by J. H. Langlois, Lori A....
Two studies were conducted to examine infants' social responses to attractive and unattractive faces. In Study 1, 60 12-month-olds interacted with a stranger...