Research suggests that AAC devices can positively impact the language development of nonverbal children with Autism Spectrum Disorder (ASD) over a 12-month period. Here’s a breakdown of the potential benefits:

Increased Communication:

• Expressing Wants and Needs: AAC allows children to communicate beyond basic gestures and vocalizations.
• Initiating Interactions: Children can actively engage in conversations and participate more readily.
• Expanded Vocabulary: Exposure to symbols, words, and phrases on the AAC device facilitates vocabulary development.

Language Learning:

• Modeling and Exposure: Repeated use of the AAC device exposes children to correct sentence structure and grammar.
• Improved Comprehension: By associating symbols and words with their meaning, comprehension skills develop.
• Building Blocks for Speech: For some children, AAC can serve as a stepping stone towards verbal communication.

However, it’s important to consider:

• Individual Differences: The impact of AAC varies depending on the child’s cognitive abilities, age, and motivation.
• Consistency and Support: Effective implementation requires consistent use by parents, therapists, and educators.
• Focus on Speech: AAC shouldn’t replace efforts to promote spoken language development if possible.

Here’s what research tells us about the impact of AAC over 12 months:

• Studies have shown improvements in expressive communication skills, vocabulary development, and even phrase construction within a year of using AAC devices [1, 2].
• Research suggests that children using AAC for communication are more likely to develop spoken language later on [3].

Overall, AAC is a valuable tool that can significantly enhance language development in nonverbal children with ASD. However, it’s most effective when implemented as part of a comprehensive intervention plan that addresses individual needs and includes ongoing support.