Fixations and Fixation Shifts in Own-Race and Other-Race Face Pairs at Three, Six and Nine Months

Area of Science:

• Developmental Psychology
• Perceptual Learning
• Infant Cognition

Background:

• The other-race effect (ORE) describes the tendency to be better at recognizing faces of one's own race.
• Early development of face perception and the ORE in infants is crucial for understanding social cognition.
• Longitudinal studies are needed to track the emergence of race-based face processing differences.

Purpose of the Study:

• To investigate the developmental trajectory of race-based face processing in Caucasian infants.
• To examine how infants' attention and fixation patterns differ between own-race and other-race faces.
• To assess the emergence of the other-race effect by six and nine months of age.

Main Methods:

• Longitudinal study of Caucasian infants at three, six, and nine months.
• Presentation of Caucasian own-race and African other-race face pairs.
• Measurement of infant eye-movements, including fixation duration and shift frequency.

Main Results:

• Infants showed age-related improvements in visual attention, with shorter fixation durations and higher shift frequencies over time.
• By six and nine months, infants exhibited differential looking behavior towards own-race versus other-race faces.
• Infants shifted attention more frequently between Caucasian own-race faces compared to African other-race faces.

Conclusions:

• The study provides evidence for the emergence of the other-race effect by six months of age in Caucasian infants.
• Differential attention allocation suggests distinct processing mechanisms for own-race and other-race faces.
• Fixation shift frequency is a valuable measure for understanding early race-based face processing, complementing fixation duration.