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Updated: Apr 18, 2026
Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
Published on: November 14, 2018
The development of gaze behaviors in response to biological motion displays
1Department of Psychology, Graduate School of Letters, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
Insights
Twelve-month-old infants can follow the gaze of point-light figures, indicating developing social cognition and biological motion perception. Nine-month-olds lack this ability, suggesting a developmental milestone.
Area of Science:
- Developmental psychology
- Cognitive neuroscience
- Perception science
Background:
- The integration of social cognition and biological motion perception is crucial for human development.
- Understanding the developmental trajectory of this integration is essential for identifying key cognitive milestones.
Purpose of the Study:
- To investigate the developmental emergence of gaze following in infants using point-light displays.
- To determine the age at which infants integrate social cues from biological motion.
Main Methods:
- Utilized a gaze-following paradigm with 9- and 12-month-old infants.
- Presented point-light displays of upright human figures indicating attentional direction.
- Compared infant responses to point-light versus full-view conditions.
Main Results:
- Twelve-month-old infants successfully followed the gaze of point-light figures, unlike 9-month-olds.
- Both age groups followed gaze cues when presented with full-view human figures.
- This suggests a specific developmental window for processing social information from biological motion.
Conclusions:
- The ability to interpret attentional direction from biological motion develops by 12 months of age.
- This finding highlights a critical period in early development for integrating social cognition and motion perception.
- Further research can explore the neural underpinnings of this developmental shift.
Abstract:
Although the relationship between biological motion perception as depicted by point-light displays and social cognition has been investigated in recent decades, the developmental course of the integration of social cognition and the perception of biological motion is not well understood. To better understand this development, we investigated the ability of 9- and 12-month-old infants to shift their gaze toward a point-light upright human figure using a paradigm similar to that used by Yoon and Johnson (2009). We found that 12-month-old, but not 9-month-old, infants were able to follow the direction of attention of the upright point-light figure (Experiments 1 and 2). However, both the younger and older infants were able to follow the attentional shift of others under the full-view condition (Experimental 3). These results suggest that the ability to process the higher-level information provided by biological motion patterns, such as the attentional direction of others, develops by 12 months, but not by 9 months, of age. The relationship between the development of social cognition and that of biological motion perception is discussed.
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