AAC
AAC is the acronym for Augmentative and Alternative Communication.
Augmentative and Alternative Communication
Methods of communication used to support or replace speech or writing for individuals who have impairments in producing or comprehending spoken or written language. These methods can be temporary or permanent and are used by people with a wide range of disabilities, including cerebral palsy, autism spectrum disorder, ALS, stroke, and traumatic brain injury.
AAC systems are typically categorized into two types: unaided and aided.
- Unaided AAC: Includes gestures, sign language, and facial expressions—modes that don’t require external tools.
- Aided AAC: Involves tools ranging from simple picture boards and symbol charts to sophisticated speech-generating devices (SGDs) and mobile communication apps.
Modern AAC devices may incorporate eye-tracking, touchscreens, or AI-driven predictive text to help users construct messages more efficiently. These tools are increasingly integrated into mainstream technologies, including tablets and smartphones, making them more accessible and socially acceptable.
The goal of AAC is not only to provide a voice but also to promote autonomy, participation, and social connection. Speech-language pathologists typically assess and recommend the most appropriate AAC solution for each user based on their cognitive, motor, and sensory abilities.
AAC empowers individuals by enabling them to express needs, share ideas, and participate fully in education, employment, and community life.
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