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Related Experiment Video

Updated: Nov 21, 2025

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras

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Developmental Changes in Visual Scanning of Dynamic Faces and Abstract Stimuli in Infants: A Longitudinal Study.

Sabine Hunnius¹, Reint H Geuze¹

¹Department of Developmental and Clinical Neuropsychology University of Groningen Groningen, The Netherlands.

Infancy : the Official Journal of the International Society on Infant Studies

|January 12, 2021

Summary

Infant visual scanning patterns stabilize after 18 weeks, adapting to dynamic stimuli like faces and abstract shapes. By 14 weeks, babies adjust their gaze based on stimulus features, focusing on facial areas like eyes and mouth.

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Last Updated: Nov 21, 2025

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Published on: March 17, 2023

Area of Science:

Developmental psychology
Cognitive neuroscience
Infant visual perception

Background:

Understanding infant visual development is crucial for cognitive and perceptual studies.
Previous research focused on scanning static stimuli, leaving dynamic visual scanning patterns less understood.
Early visual scanning strategies lay the foundation for later social interaction and object recognition.

Purpose of the Study:

To investigate the developmental trajectory of visual scanning patterns in infants aged 6 to 26 weeks.
To compare infant scanning behavior when viewing dynamic facial and abstract stimuli.
To determine the age at which visual scanning patterns stabilize and adapt to stimulus characteristics.

Main Methods:

Repeated assessments of 10 infants from 6 to 26 weeks of age.
Eye movements recorded using a corneal-reflection system.
Infants viewed two dynamic stimuli: a mother's face and an abstract visual pattern.

Main Results:

Visual scanning patterns stabilized after 18 weeks, later than reported for static stimuli.
Scanning behavior adapted to stimulus characteristics from the 14-week session onwards.
Infants preferentially scanned the eye and mouth regions of their mother's face.

Conclusions:

Infant visual scanning of dynamic stimuli matures later than for static stimuli.
Adaptation to stimulus properties emerges by 14 weeks, indicating early attentional flexibility.
Specific facial features are prioritized in early visual attention, supporting social- Gaze development.