Understanding the referential nature of looking: infants' preference for object-directed gaze
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Updated: Jul 6, 2026

Exploring Infant Sensitivity to Visual Language using Eye Tracking and the Preferential Looking Paradigm
Published on: May 15, 2019
Atsushi Senju1, Gergely Csibra, Mark H Johnson
1Centre for Brain and Cognitive Development, School of Psychology, Birkbeck College, University of London, London, UK. a.senju@bbk.ac.uk
Insights
Nine-month-old infants use eye contact to understand where others are looking. They pay more attention when gaze direction matches object location, showing early social cognition development.
Area of Science:
- Developmental Psychology
- Cognitive Neuroscience
- Infant Perception
Background:
- Understanding gaze direction is crucial for social interaction.
- Early infancy research explores how infants interpret social cues.
- The role of communicative intent in gaze perception is not fully understood.
Purpose of the Study:
- To determine if 9-month-old infants link gaze direction with object location.
- To investigate if communicative cues, like eye contact, influence this sensitivity.
- To explore the development of referential gaze understanding in infants.
Main Methods:
- Four experiments using visual stimuli presented to 9-month-old infants.
- Infants observed a face shifting gaze towards or away from objects.
- Measured infant looking time to assess attention to gaze-object congruency.
- Controlled for spatial congruency and the effect of prior eye contact.
Main Results:
- Infants looked longer when gaze direction was congruent with object location.
- This gaze-object congruency effect was dependent on a preceding period of eye contact.
- Simple spatial congruency alone did not elicit the effect.
- Infants demonstrated sensitivity to communicative cues in gaze perception.
Conclusions:
- Nine-month-old infants can encode eye direction in referential terms when communicative cues are present.
- Infants show a bias to attend to scenes where gaze is directed towards objects.
- This suggests early development of joint attention mechanisms and social understanding.
Abstract:
In four experiments, we investigated whether 9-month-old infants are sensitive to the relationship between gaze direction and object location and whether this sensitivity depends on the presence of communicative cues like eye contact. Infants observed a face, which repeatedly shifted its eyes either toward, or away from, unpredictably appearing objects. We found that they looked longer at the face when the gaze shifts were congruent with the location of the object. A second experiment ruled out that this effect was simply due to spatial congruency, while a third and a fourth experiment revealed that a preceding period of eye contact is required to elicit the gaze-object congruency effect. These results indicate that infants at this age can encode eye direction in referential terms in the presence of communication cues and are biased to attend to scenes with object-directed gaze.
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