Visual Scanning Patterns during the Dimensional Change Card Sorting Task in Children with Autism Spectrum Disorder

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Autism spectrum disorder (ASD) is associated with impaired cognitive flexibility and executive function deficits.
• Visual scanning patterns in children with ASD during cognitive tasks are not well understood.

Purpose of the Study:

• To investigate the visual scanning patterns of children with ASD during the Dimensional Change Card Sorting (DCCS) task.
• To compare the eye-tracking data of children with ASD and typically developing (TD) children on the DCCS task.
• To explore the relationship between behavioral performance and visual attention in children with ASD.

Main Methods:

• Utilized eye-tracking technology to monitor visual scanning patterns.
• Administered the standardized Dimensional Change Card Sorting (DCCS) task to both ASD and TD children.
• Collected and analyzed behavioral data and eye movement metrics.

Main Results:

• ASD children exhibited deficits in executive function, confirming previous research.
• ASD children demonstrated unique visual scanning patterns, including shorter fixation on correct cards post-switch and increased time looking at blank areas.
• Unlike TD children, ASD children did not show a bias towards the color dimension during the task.

Conclusions:

• Visual scanning differences in ASD children during the DCCS task may underlie their cognitive flexibility challenges.
• Eye-tracking provides insights into the specific attentional processes contributing to executive function differences in ASD.
• Further research can explore interventions targeting visual attention to improve cognitive flexibility in ASD.