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Updated: Jun 14, 2025

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Parent-mediated intervention in infants with an elevated likelihood for autism reduces dwell time during a

Rachael Bedford1,2, Jonathan Green3,4, Teodora Gliga5

  • 1Department of Psychology, University of Bath, Bath, UK.

Autism Research : Official Journal of the International Society for Autism Research
|August 29, 2024
PubMed

Insights

The Intervention with the British Autism Study of Infant Siblings-Video Interaction for Promoting Positive Parenting (iBASIS-VIPP) intervention reduced infant social attention dwell time. This eye-tracking finding suggests cognitive markers may be sensitive to early autism interventions.

Area of Science:

  • Developmental Psychology
  • Clinical Psychology
  • Neuroscience

Background:

  • Cognitive markers may offer greater sensitivity to intervention effects than behavioral measures.
  • Early intervention is crucial for infants with elevated likelihood for autism (EL).
  • Parenting interventions aim to enhance parental responsiveness to infant cues.

Purpose of the Study:

  • To evaluate the impact of the iBASIS-VIPP intervention on infant social attention using eye-tracking.
  • To assess changes in gaze following behavior as a cognitive marker in EL infants.

Main Methods:

  • A randomized controlled trial (RCT) involving 54 EL infants (ages 9-15 months).
  • Intervention group received iBASIS-VIPP; control group received no intervention.
  • Eye-tracking measured dwell time to referred objects in a gaze following task at 15 months.

Main Results:

  • The iBASIS-VIPP intervention was associated with significantly reduced dwell time to the referent of another's gaze (p=0.03).
  • This eye-tracking finding was considered alongside previous non-significant trends in language scores.

Conclusions:

  • The iBASIS-VIPP intervention demonstrated an effect on an eye-tracking measure of social attention in EL infants.
  • Cognitive measures, such as eye-tracking, are valuable for assessing intervention effects in early autism research.
  • Future trials should integrate cognitive and behavioral measures to explore intervention mechanisms.

Keywords:
RCTautismelevated likelihood for autismgaze followinginfant siblingsinterventionparent‐mediated intervention

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