Assistive Technology for Communication and Hearing
AAC Fundamentals
Augmentative and alternative communication (AAC) ranges from unaided (gestures, sign) to aided (low-tech boards, high-tech speech-generating devices). Know AAC myths to reject: AAC does not inhibit speech development; it supports communication and often language growth. Candidates should understand core vs. fringe vocabulary, vocabulary organization, and the importance of partner training and modeling (aided language stimulation).
Access and Features
Device selection considers access method (direct selection, switch scanning, eye gaze), portability, voice options, and vocabulary capacity. Feature matching again applies: match device features to communication needs and environments.
Hearing Technology
Know hearing aids (amplification), cochlear implants (electrical stimulation of the auditory nerve), FM/remote microphone systems (improve signal-to-noise ratio in noise/distance), and captioning/CART for access. Understand classroom acoustics and the role of the educational audiologist.
Traps
- The myth that AAC delays speech.
- Confusing FM systems (improve listening in noise) with amplification devices themselves.
- Recommending a device without considering partner training and vocabulary relevance.
Rule of Thumb
AAC success depends on vocabulary that matters to the user and communication partners who model and respond-device features alone don't create communication.