What Are Communication Devices for Nonverbal Adults?
Communication devices for nonverbal adults are tools designed to help people express themselves when they cannot speak or have difficulty speaking. These devices range from straightforward picture boards to sophisticated electronic systems that produce speech. Nonverbal communication challenges can result from various conditions, including stroke, cerebral palsy, autism spectrum disorder, traumatic brain injury, amyotrophic lateral sclerosis (ALS), and other neurological or physical conditions.
The goal of these devices is to provide people with a way to share their thoughts, feelings, needs, and ideas with others. Communication is a fundamental human need, and having a reliable method to express oneself can significantly improve quality of life, independence, and social connections. These tools allow nonverbal adults to participate in conversations, make decisions about their own care, engage in work or educational activities, and maintain relationships with family and friends.
Communication devices come in many forms and price ranges. Some are low-tech solutions that require no batteries or training, while others are high-tech systems that use computers and specialized software. The right device depends on a person's specific needs, physical abilities, cognitive skills, budget, and lifestyle. What works well for one person may not work for another, so understanding the different types of devices available is an important first step in finding a solution that fits.
Low-Tech Communication Options
Low-tech communication devices are straightforward tools that do not require electricity or complex technology. Picture boards and communication boards are among the most common low-tech options. These boards display images, words, or symbols that a person can point to in order to communicate. The pictures or words are arranged in a way that makes sense for the user, often organized by category such as food, feelings, activities, or people. Communication boards can be made at home using printed pictures and paper, or purchased as pre-made products.
Another low-tech option is letter boards or spelling boards. These contain the alphabet and common words, allowing a person to spell out messages by pointing to letters one at a time. This method works well for people who can read and write but cannot speak. Eye gaze frames are similar tools designed for people who can move their eyes but have limited physical mobility. A person looks at letters or words on the frame, and another person watches their eye movements to understand the message.
Sign language and manual communication systems are also low-tech options. Some nonverbal adults may learn to use sign language or other manual communication methods to express themselves. These approaches rely on the person's ability to make hand movements and the listener's ability to understand the signs. Low-tech devices are affordable, portable, and do not require batteries or technical support. However, they may be slower than other methods and require the listener to be present and attentive during communication.
Mid-Range Communication Devices
Mid-range communication devices are electronic tools that fall between straightforward picture boards and complex computer-based systems. Single-message devices are small electronic boxes that play a recorded message when a button is pressed. These devices are useful for common phrases or needs, such as "I need water" or "I am in pain." A person can have multiple single-message devices for different messages, or they can use one device with multiple buttons, each programmed with a different message.
Sequencing devices allow a person to create longer messages by pressing buttons in sequence. For example, pressing buttons in order might create the message "I would like to go to the park." These devices are more flexible than single-message devices because they allow for more varied communication. Many mid-range devices are portable and can be carried in a pocket or attached to a wheelchair.
Speech-generating devices (SGDs) with limited vocabulary are also considered mid-range options. These devices contain a set number of pre-recorded or synthesized words and phrases that a person can select by pressing buttons or touching a screen. The device then speaks the selected words aloud. Mid-range devices are more affordable than high-tech systems and easier to learn than complex computer-based solutions. However, they may be limited in the types of messages a person can create and may not be suitable for people who need to communicate complex or unique ideas frequently.
High-Tech Communication Systems
High-tech communication systems use computer technology and specialized software to provide flexible, powerful communication options. These systems typically use a screen or touchpad where a person can select words, letters, or symbols. The device then converts the selection into spoken words using text-to-speech technology. Some systems use synthesized voices, while others use recorded human voices. Many systems allow the user to customize the voice to match their age, gender, or accent preferences.
Vocabulary in high-tech systems can be customized to include words and phrases important to the individual user. Some systems come with pre-loaded vocabulary organized by category, while others allow users to add, remove, or rearrange words as needed. This flexibility means a person can have access to thousands of words and create messages about any topic. Advanced systems may include features such as word prediction, which suggests the next word as the user types, and phrase storage, which allows quick access to frequently used messages.
Eye-tracking technology is an important feature in many high-tech systems. This technology allows a person to control the device by looking at different areas of the screen. A camera tracks the user's eye movements, and the device selects the item the user is looking at. Eye-tracking is valuable for people who have very limited physical mobility but can control their eye movements. High-tech systems can be expensive and may require training to use effectively, but they offer the most communication possibilities and flexibility for nonverbal adults who need to express complex thoughts and ideas.
Factors to Consider When Choosing a Device
Choosing a communication device is a personal decision that depends on many factors. Physical abilities are an important consideration. Some people can point with their fingers, while others may use eye gaze, head movements, or mouth movements to select words. The device chosen should match the person's physical capabilities. Cognitive abilities also matter. Some people can spell words and construct sentences, while others may benefit more from selecting pre-made phrases or pictures. The person's reading level, memory, and ability to learn new systems all influence which device will work best.
Lifestyle and communication needs should guide the choice as well. A person who needs to communicate complex work-related information may need a different device than someone whose primary communication is with family members at home. The person's age, interests, and daily activities all affect what vocabulary and features would be most useful. Portability is another consideration. Some people need a device they can carry everywhere, while others may have a primary device at home and a backup device for travel.
Cost is a practical factor that cannot be ignored. Low-tech devices are very affordable, while high-tech systems can cost thousands of dollars. Some devices may be covered by insurance or other funding sources, while others must be purchased out of pocket. Training and support are also important. Some devices are straightforward enough to use without formal training, while others require learning how to operate the system and customize it for the user's needs. The availability of customer support and repair services should be considered as well.
Getting Started With Communication Devices
The process of finding and using a communication device often begins with a conversation between the nonverbal person, their family, and their healthcare providers. Speech-language pathologists are professionals who specialize in communication and can provide valuable information about different device options. These professionals can assess the person's abilities and needs and make recommendations about which types of devices might work well. Occupational therapists can also provide insights about physical abilities and how to set up a device for straightforward use.
Many people benefit from trying different devices before making a final choice. Some communities have device lending libraries or demonstration centers where people can test devices before purchasing them. This hands-on experience can help determine which features are most important and which device feels most natural to use. It is also helpful to talk with other nonverbal adults who use communication devices. They can share their experiences and offer practical information about what works well in real-life situations.
Learning to use a communication device takes time and practice. Some devices are intuitive and require little training, while others have a steeper learning curve. Family members and caregivers should also learn how to use the device and how to encourage the nonverbal person to use it in daily conversations. Consistency in using the device, practicing regularly, and gradually expanding vocabulary or phrases can help build confidence and communication skills. As a person's needs change over time, the device or settings can be adjusted to continue meeting their communication needs effectively.