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Updated: Apr 22, 2026

A Within-subjects Experimental Protocol to Assess the Effects of Social Input on Infant EEG
Published on: May 3, 2017
Assessing and Improving Early Social Engagement in Infants
Lynn Koegel1, Anji Singh1, Robert Koegel1
1University of California, Santa Barbara.
Insights
Early intervention can improve social engagement in infants with developmental concerns. A modified Pivotal Response Treatment showed positive results in infants, suggesting potential for conditions like Autism Spectrum Disorder.
Area of Science:
- Developmental Psychology
- Infant Behavior
- Clinical Psychology
Background:
- Infants exhibiting social abnormalities may face later social and behavioral challenges.
- Limited research exists on frequent repeated measures of infant social vulnerabilities.
- Feasibility of early interventions for social engagement in infants under one year is understudied.
Purpose of the Study:
- To assess social engagement in infants with concerns.
- To examine the feasibility of an intervention to improve infant social behaviors.
- To determine the effectiveness of a modified Pivotal Response Treatment.
Main Methods:
- Multiple baseline research design.
- Assessment of affect, social interest, eye contact, and response to name in three infants (4, 7, 9 months).
- Implementation of a modified Pivotal Response Treatment.
Main Results:
- Infants showed consistently low or erratic social behaviors during baseline.
- The intervention led to immediate increases and stable social engagement.
- Social engagement remained high at follow-up.
Conclusions:
- Early assessment and intervention are crucial for infants with social engagement difficulties.
- A modified Pivotal Response Treatment is feasible and effective for improving infant social behaviors.
- Findings have implications for clinical populations, including infants with Autism Spectrum Disorder.
Abstract:
Empirical studies have documented a variety of social abnormalities in infancy that indicate risk for later social and behavioral difficulties. There is very little research illustrating the presence of such behavioral vulnerabilities with frequent repeated measures, and the feasibility of designing interventions for improving social engagement in infants under one year of age. In the context of a multiple baseline research design, three young infants, ages 4, 7, and 9 months referred for concerns about social engagement were assessed for affect, social interest, eye contact avoidance, and response to name. Additionally, the feasibility of implementing an intervention to target social behaviors was examined. Results demonstrated that: (1) consistently low or erratic levels of social behavior were evident throughout the baseline assessment period; (2) these patterns could be improved with a brief intervention (a modified Pivotal Response Treatment) showing an immediate increase and stability of social engagement; and (3) social engagement remained at a stable and high level at follow-up. The results are discussed in terms of implications of early assessment and intervention for clinical populations, including infants with Autism Spectrum Disorder.
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