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Updated: Jul 2, 2025

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
Published on: November 14, 2018
Coregistration of EEG and eye-tracking in infants and developing populations
1Department of Developmental Psychology with Educational Psychology, University of Bremen, Hochschulring 18, 28359, Bremen, Germany. kulke@uni-bremen.de.
Insights
Combining electroencephalography (EEG) and eye-tracking offers a powerful way to study infant attention in real-world settings. This review addresses challenges and provides recommendations for this valuable research method.
Area of Science:
- Developmental Psychology
- Cognitive Neuroscience
- Infant Research
Background:
- Infant research relies on observing gaze for cognitive insights.
- Early studies combined behavioral observation with electroencephalography (EEG).
- Directly combining eye-tracking and EEG in infants presents unique challenges.
Purpose of the Study:
- To review the development of co-registration (EEG and eye-tracking) in infancy research.
- To identify and suggest solutions for challenges in infant co-registration studies.
- To provide recommendations for implementing co-registration in infant research.
Main Methods:
- Review of existing literature on co-registration in infant research.
- Analysis of specific technical and methodological challenges.
- Discussion of strategies to overcome identified obstacles.
Main Results:
- Co-registration of EEG and eye-tracking in infants is still uncommon due to specific difficulties.
- The article outlines practical approaches to address these challenges.
- Recommendations are provided for maximizing the benefits of combined measures.
Conclusions:
- Co-registration of EEG and eye-tracking can enhance the study of infant attention and cognition.
- This combined method allows for the investigation of natural, real-world infant behavior.
- Adhering to Open Science principles is recommended for future co-registration research.
Abstract:
Infants cannot be instructed where to look; therefore, infant researchers rely on observation of their participant's gaze to make inferences about their cognitive processes. They therefore started studying infant attention in the real world from early on. Developmental researchers were early adopters of methods combining observations of gaze and behaviour with electroencephalography (EEG) to study attention and other cognitive functions. However, the direct combination of eye-tracking methods and EEG to test infants is still rare, as it includes specific challenges. The current article reviews the development of co-registration research in infancy. It points out specific challenges of co-registration in infant research and suggests ways to overcome them. It ends with recommendations for implementing the co-registration of EEG and eye-tracking in infant research to maximise the benefits of the two measures and their combination and to orient on Open Science principles while doing so. In summary, this work shows that the co-registration of EEG and eye-tracking in infant research can be beneficial to studying natural and real-world behaviour despite its challenges.
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