Using AAC to unlock communicative potential in late-talking toddlers

Area of Science:

• Speech-language pathology
• Developmental psychology
• Pediatric communication disorders

Background:

• Input-based word learning treatments are established but may not suit all toddlers.
• Some toddlers exhibit speech sound delays or rely on nonverbal communication, impacting treatment efficacy.

Purpose of the Study:

• To modify a standardized input-based word learning treatment for two late-talking toddlers.
• To investigate the impact of incorporating an augmentative alternative communication (AAC) device into speech therapy.

Main Methods:

• A single-subject design was employed to monitor toddlers' progress.
• The treatment was modified by adding an AAC device and requiring its use for communication.
• Linguistic output was measured before and after the protocol modification.

Main Results:

• Toddlers demonstrated no significant learning with the initial input-based treatment.
• Following the AAC device integration, linguistic output increased by over 600%.
• Both toddlers utilized AAC and vocal speech, producing novel words and, in one case, multiple-word combinations.

Conclusions:

• Modifications to input-based therapy, including AAC, can be effective for toddlers with pragmatic or speech sound production challenges.
• This approach may enhance word learning and overall communication in specific pediatric populations.
• Further research is warranted to explore the broader applicability of modified input-based treatments.