Promoting social attention in 3-year-olds with ASD through gaze-contingent eye tracking

Area of Science:

• Neuroscience
• Developmental Psychology
• Biomedical Engineering

Background:

• Young children with autism spectrum disorder (ASD) exhibit reduced visual attention to faces, impacting social learning.
• Existing technologies do not directly address these core social attention deficits in ASD.
• Early social attention difficulties in ASD are linked to long-term developmental outcomes.

Purpose of the Study:

• To investigate the feasibility of automated gaze modification training for enhancing attention to faces in 3-year-old children with ASD.
• To determine if gaze-contingent adaptive cueing can redirect attention towards normative looking patterns.
• To assess the effectiveness of this training in improving social attention behaviors.

Main Methods:

• A gaze-contingent adaptive cueing system was developed using free-viewing data from typically developing (TD) controls.
• Children with ASD were randomly assigned to an adaptive Cue group or a No-Cue control group.
• Performance was measured by analyzing the proportion of time spent looking at the screen and at actresses' faces at baseline, during training, and post-training.

Main Results:

• The adaptive Cue group showed significantly higher attention to faces post-training compared to the No-Cue group.
• Attention to faces decreased in the No-Cue group from pre- to post-training, but not in the Cue group.
• Training effects were more pronounced in children with lower nonverbal abilities, indicating potential benefits for those with greater cognitive impairment.

Conclusions:

• Gaze-contingent training is a feasible and effective method for mitigating decreased attention to social cues in young children with ASD.
• This technology shows promise as a therapeutic system to augment existing behavioral interventions for ASD.
• The findings suggest that gaze-contingent approaches may be particularly beneficial for children with ASD and lower nonverbal cognitive skills.