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Related Experiment Video

Updated: Jun 16, 2026

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
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Toward Dynamical Modeling of Infants' Looking Times.

Ralf Engbert1,2, Josephine Funken1, Natalie Boll-Avetisyan2,3

  • 1Psychology, University of Potsdam, Potsdam, Germany.

Wiley Interdisciplinary Reviews. Cognitive Science
|May 24, 2025
PubMed
Summary

This study introduces a new dynamical model for infant gaze behavior, analyzing saccades and fixations. This framework helps understand infant cognition and language development by mapping model parameters to cognitive processes.

Keywords:
dynamical modelsgaze trajectoriesinfant developmentlooking times

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Area of Science:

  • Developmental Psychology
  • Cognitive Science
  • Computational Neuroscience

Background:

  • Analyzing infant looking times is crucial for understanding cognitive development.
  • Existing methods lack process-based dynamical models for infant gaze behavior.
  • Microstructure of gaze (saccades, fixations) is often overlooked in dynamic analyses.

Purpose of the Study:

  • Propose a novel dynamical framework for modeling infant gaze behavior.
  • Incorporate the microstructure of gaze (saccades and fixations) into a process-based model.
  • Provide a method to map model parameters to specific cognitive processes.

Main Methods:

  • Developed a new dynamical framework for infant gaze analysis.
  • Integrated saccades and fixations into a process-based model.
  • Utilized Bayesian data assimilation for robust model inference.

Main Results:

  • The proposed model successfully reproduced inter-individual differences in a developmental study of noun comprehension.
  • Model parameters were shown to map onto cognitive processes like attention and working memory.
  • Demonstrated the framework's ability to capture the dynamics of infant looking times.

Conclusions:

  • The dynamical framework offers a novel approach to studying infant gaze behavior.
  • This model provides insights into cognitive processes underlying gaze control in infants.
  • The framework has potential applications across developmental and cognitive sciences.