Augmentative and Alternative Communication (AAC) devices help individuals with communication challenges express themselves more effectively. They are used to help individuals who have difficulty with spoken or written language. AAC can be used by people with developmental disabilities, acquired conditions, or other challenges affecting their communication ability.

These devices range from low-tech to high-tech solutions, and they are especially useful for people with speech or language difficulties, including those with autism, cerebral palsy, or language disorders like mixed receptive-expressive language disorder.

There are two main types of AAC:

Unaided AAC: This type involves communication methods that do not require external tools. Examples include:

• Gestures
• Body language
• Facial expressions
• Sign language

Aided AAC: This type uses external tools, ranging from low-tech to high-tech. Examples include:

Low-Tech AAC Devices

These are non-electronic tools that can be used to support communication:

• Picture Exchange Communication System (PECS): In PECS, users exchange picture cards to communicate their needs.
• Communication Boards/Books: Simple boards or books with symbols, words, or pictures that users can point to.
• Speech-generating Wristbands or Tags: These wearable or portable devices allow the user to select pictures or symbols.

Mid-Tech AAC Devices

These devices often have basic electronic features but don’t offer full customization like high-tech devices:

• Single or Multiple Message Devices: Devices that store pre-recorded messages the user can activate with a button press.
• Talking photo albums: A device that allows users to associate a voice message with a picture, which can be played when pressed.

High-Tech AAC Devices

These are advanced, customizable devices, often with touch screens, that offer robust communication options:

• Speech Generating Devices (SGDs): Electronic devices that convert text or symbols into speech. Examples include apps for tablets (like Proloquo2Go) and dedicated speech devices.
• Eye-Gaze Technology: A high-tech device where users can select words or images by controlling the device with their eye movements.
• Dynamic Display Devices: These devices change the symbols or words on the screen based on what the user selects, providing a flexible communication system.

Apps and Software

Many AAC tools are now available as apps for tablets and smartphones:

• Proloquo2Go (for iOS): A popular app for symbol-based communication.
• LAMP Words for Life: Designed specifically for children with autism.
• Tobii Dynavox: A comprehensive platform with both hardware and software for AAC.
• Grid for iPad: A customizable app for symbol-based communication.

Benefits of AAC Devices

• Enhancing Communication: AAC devices enable users to express themselves when verbal communication is limited.
• Improving Language Development: For children, especially, AAC devices can support language learning and development.
• Reducing Frustration: By providing a way to communicate needs and thoughts, AAC devices reduce frustration and improve quality of life.

AAC is often used by people with conditions like autism, cerebral palsy, stroke, traumatic brain injury, and language disorders. It can help them express their needs, thoughts, and emotions more effectively. The goal is to enable communication and improve the individual’s ability to participate in daily activities and social interactions.

If you’re considering using AAC devices for your homeschool student with a language disorder, it can be helpful to consult with a speech-language pathologist (SLP) to determine the best device based on their specific needs.