Characterizing communicative development in children referred for autism spectrum disorders using the MacArthur-Bates...

Area of Science:

• Developmental Psychology
• Clinical Psychology
• Neurodevelopmental Disorders

Background:

• Early communication development is crucial for understanding Autism Spectrum Disorder (ASD).
• Previous research established developmental patterns in young children.
• Understanding ASD communication profiles aids in targeted interventions.

Purpose of the Study:

• To characterize early communicative development in children with ASD.
• To compare communication skills in children with ASD, developmental delay (DD), and typically developing children.
• To examine the relationship between communication skills and age in these groups.

Main Methods:

• Parental reports on the MacArthur-Bates Communicative Development Inventory (CDI) were analyzed.
• Data were collected from 93 children with ASD, 31 with DD, and 29 typically developing children.
• Skills assessed included vocabulary, non-verbal communication, object use, and play.

Main Results:

• Children with ASD showed delays in vocabulary, non-verbal communication, object use, and play skills.
• Skills improved with increasing non-verbal mental age and chronological age across all groups.
• Vocabulary profiles and the developmental pattern of gesture and vocabulary mastery were similar across ASD and comparison groups.

Conclusions:

• Children with ASD experience delays in early communication milestones.
• Developmental trajectories are influenced by age, but specific skill deficits persist in ASD.
• ASD may present with a smaller gap between receptive and expressive vocabulary compared to norms.