At three months of age, infants were able to show recognition for familiar faces from all racial groups, but by six months, a pattern was beginning to emerge where the infants could only recognize faces from the Caucasian or Chinese groups—groups they had more familiarity with. At nine months, recognition took place only in the own-race group.
At three months of age, infants could recognize familiar faces across all racial groups; however, by six months, there was a trend towards recognizing faces primarily from the Caucasian or Chinese backgrounds—races they were more accustomed to. By nine months, recognition was limited to their own race group.