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Gaze behaviours in infancy: Rethinking their development as a dynamic system
Mili Mathew1, Manjula Rajanna1
1a All India Institute of Speech and Hearing, Dept. of Speech Language Pathology , Mysore , India.
International Journal of Speech-Language Pathology
|April 12, 2016
Summary
Infant eye gaze development is dynamic, not solely maturational. Gaze behaviors show variability and nesting, influenced by environmental and parental factors, not just age.
Area of Science:
- Developmental Psychology
- Infant Behavior
- Communication Studies
Background:
- Eye gaze is crucial for communication and identifying developmental deficits.
- Understanding typical infant gaze development provides a baseline for atypical development.
Purpose of the Study:
- To examine the developmental trajectories of infant gaze behaviors.
- To analyze gaze development within the Dynamic Systems framework, emphasizing variability and nesting.
Main Methods:
- Nine typically developing infants (3-12 months) were videotaped during interactions.
- Six gaze behaviors were coded, and their occurrence rates calculated.
- Non-linear analysis methods were applied to the data.
Main Results:
- Gaze behavior growth trajectories exhibited both linear and non-linear patterns.
- Environment exploration behaviors showed a specific age of reliable change.
- Correlations indicated nested growth within the infant gaze system.
Conclusions:
- Infant gaze system development is dynamic and variable.
- Gaze skills are influenced by environmental and parental factors, not solely biological maturation.
- Developmental progress should consider variability and contextual influences.
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