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AAC and Nonspeaking Communication Reference

Augmentative and alternative communication (AAC) encompasses the methods, tools, and communication systems people use in addition to speech or instead of speech. AAC may include facial expression, gesture, body movement, sign languages, writing, spelling, picture or letter boards, communication books, mobile applications, and dedicated speech-generating devices. A person may combine several of these forms within the same conversation or use different forms in different environments.

Overview

‘’Augmentative’’ communication supplements speech. ‘’Alternative’’ communication provides another means of expression when speech does not meet a person’s communication needs. These functions often overlap: a person may speak at some times, use a speech-generating device at others, and combine speech with gesture, sign, writing, or prepared messages.

AAC is a communication system rather than a diagnosis or a single device. It may support people whose communication needs are lifelong, acquired, progressive, temporary, or variable. The availability or clarity of speech does not, by itself, establish a person’s language, cognition, comprehension, or capacity to make decisions. AAC users may or may not also have language, learning, intellectual, or cognitive disabilities; those qualities must not be inferred from a communication method in either direction.

Terminology varies by person and community. ‘’Nonspeaking’’ is preferred by some people, particularly within parts of the autistic community, while others use ‘’nonverbal,’’ ‘’minimally speaking,’’ ‘’speech-disabled,’’ ‘’AAC user,’’ or language specific to their own access needs. Some people cannot rely on speech alone but do speak. Individual preference determines how a person is described.

Function and Use

AAC gives a user a way to generate original language, select symbols or words, spell, retrieve stored messages, or signal meaning through nondevice methods. A complete system may include several components rather than one permanent tool. Its design is shaped by the user’s language, literacy, motor access, vision, hearing, sensory needs, fatigue, environments, communication partners, and goals.

Communication may be independent or may involve an interpreter, trained partner, or physical and environmental support. Partners are responsible for addressing the AAC user directly, allowing enough time for a response, preserving access to the person’s communication system, and confirming meaning without taking authorship away from the user.

Forms and Options

Unaided Communication

Unaided AAC uses the communicator’s body without external equipment. It includes facial expression, conventional or individualized gestures, body movement, eye pointing, vocalizations, finger spelling, and sign languages. Sign languages are full natural languages, not simplified substitutes for speech, although an individual may also use selected signs as part of a broader multimodal system.

Low-Technology and No-Technology Supports

Low-technology supports include paper and laminated alphabet boards, picture boards, communication books, written notes, choice cards, and partner-assisted scanning layouts. These can provide direct communication or serve as backups when electronic equipment is unavailable, impractical, or being repaired.

High-Technology AAC

High-technology AAC includes applications on general-purpose computers and mobile devices as well as dedicated speech-generating devices. Systems may support spelling, symbols, stored phrases, prediction, personalized vocabulary, multiple languages, and synthesized or recorded output. Products differ in layout, portability, durability, operating-system support, and the access methods they accommodate.

TD Snap is an AAC application used with touch and other supported access arrangements. Grid 3 is communication software that can be configured for touch, pointer control, switch access, eye gaze, or combinations of access methods. A product’s available features do not determine which access method any particular user employs.

Access Methods

Direct selection includes touching a screen or board, using a mouse or pointer, or selecting through eye gaze. Indirect selection includes scanning through available choices and activating a switch when the desired item is reached. Some users combine methods or change methods as their bodies, environments, and fatigue change.

Access is not limited to a single body part or movement pattern. Positioning, mounting, screen size, spacing, dwell settings, switch placement, and sensitivity may all affect whether a system is usable. An access method is selected through the user’s demonstrated preferences and performance rather than an assumption based only on diagnosis.

Speech Output, Voice Banking, and Message Banking

Speech-generating systems may use a standard synthetic voice, a customized synthetic voice, digitized recordings, or a combination. Language, accent, age presentation, gender presentation, intelligibility, and personal identification can all matter when a user chooses a voice.

‘’Voice banking’’ creates a synthetic voice from a set of recorded speech samples. The resulting voice can speak novel text and is not a recording of every future utterance. ‘’Message banking’’ preserves recordings of particular words, phrases, names, sounds, laughs, or other personally meaningful vocal material. A system may use a banked synthetic voice for new language and message-banked recordings for selected expressions.

Assessment and Selection

AAC assessment centers the communicator’s goals and participation across real environments. It may involve the user, family or chosen supporters, speech-language pathologists, occupational or physical therapists, educators, assistive-technology specialists, interpreters, and vendors. Their roles vary; the user remains the author of their communication and the decision-maker about their system.

Feature matching compares the user’s communication and access needs with the capabilities of possible systems. Assessment may consider vocabulary organization, symbol or spelling access, language support, physical access, sensory access, portability, durability, repair, data backup, and the environments in which the system must work. Trials across multiple settings are more informative than a single brief demonstration.

There are no prerequisite motor, cognitive, behavioral, literacy, or age skills a person must prove before receiving access to AAC. Assessment may identify how to support language development or participation without turning those supports into a gate that withholds communication.

Respect for a person’s communication and personhood does not eliminate the need to establish independent authorship. In facilitated communication, a facilitator physically guides or supports the person’s movement toward letters or symbols, and controlled testing has not established the resulting messages as independently authored by the disabled person. Rapid Prompting Method and Spelling to Communicate similarly rely on a facilitator holding, moving, or cueing a letter board; their messages should not be treated as independently authored without reliable independent access. These practices are distinct from AAC methods in which a person demonstrably makes their own selections, including independently operated eye-gaze and switch systems.

Learning and Support

AAC learning includes both the user and their communication partners. Users need access to language broad enough for ordinary conversation, questions, disagreement, humor, affection, boundaries, private matters, and unfamiliar situations—not merely requests for food, care, or compliance.

Partners can support communication by modeling the available system while speaking, pausing long enough for composition, responding to all communication modes, and avoiding repeated demands to prove the same message. They should not remove a device as punishment, speak about the user as though they are absent, finish messages without permission, or limit access to vocabulary because a topic is inconvenient.

Progress is individual and may differ by vocabulary, access method, partner, setting, stress, illness, and fatigue. Competence with one method does not require abandoning other useful methods.

Access, Funding, and Availability

AAC may be acquired privately or supplied through schools, health systems, disability services, workplace accommodations, insurance, public benefits, charities, or device-loan programs. Coverage depends on jurisdiction, payer, age, diagnosis, setting, and whether the equipment is classified as durable medical equipment. Dedicated speech-generating devices and applications on general-purpose tablets may follow different coverage rules.

Assessment reports and trials may be required for funded equipment. Delays can result from evaluation wait lists, approval processes, appeals, vendor availability, training capacity, or repair and replacement procedures. School-provided access does not necessarily follow a student home unless the education plan and local arrangements provide for it; communication access is needed across home, school, work, health care, travel, and community life.

Maintenance, Reliability, and Backup Plans

Electronic AAC depends on charged equipment, functioning access hardware, current software, usable speakers or headphones, and access to stored vocabulary and settings. Users and trusted supporters may maintain backups of customized pages, vocabulary, voice files, recordings, and device settings when the system permits it.

Backup communication may include a second device, a printed board, writing, sign, gesture, partner-assisted scanning, or an agreed yes/no method. The appropriate backup depends on the user’s independent access and communication range. A backup should preserve more than emergency requests whenever possible.

Mounting, cases, switches, cables, chargers, and other physical components require maintenance according to the actual configuration. No single transport, charging, or repair arrangement applies to all AAC users.

Historical Development

People used gesture, sign, writing, alphabet systems, and communication boards long before the modern AAC field had a shared name. Twentieth-century rehabilitation, education, linguistics, disability advocacy, and emerging electronic technologies contributed to AAC’s development as an interdisciplinary field.

The International Society for Augmentative and Alternative Communication was formed in 1983. Personal computers, portable speech-generating devices, mobile touchscreens, improved speech synthesis, eye-gaze systems, switches, and configurable software expanded the available combinations of language and physical access. These technologies supplemented rather than replaced unaided and low-technology forms.

Documented Users

Cody Matsuda

Main article: Cody Matsuda

Cody Matsuda became nonspeaking after the anoxic brain injury he sustained in spring 1995 left him with acquired motor apraxia of speech. He communicated through AAC, American Sign Language, writing, vocalizations, facial expression, gesture, and body movement.

ASL was faster and more natural for Cody with people who signed. AAC gave him independent language access with nonsigners and in situations where an interpreter was unavailable. His family learned ASL, and typing and AAC were incorporated into his home education. As an adult author and advocate, he used AAC and ASL interpreters across professional and public settings. His different communication forms remained complementary rather than representing a progression from a lesser method to a better one.

Charlie Rivera

Main article: Charlie’s Personalized AAC System

Charlie Rivera used spoken speech, sign, gesture, writing, and AAC as the effects of ME/CFS and progressive language and motor impairment changed his reliable access to speech. AAC initially supplemented biological speech during flares and later became his primary reliable voice for most conversation.

Charlie first used TD Snap and later moved to Grid 3 at a different stage of his disability. He recorded a standardized voice-banking script to create a personalized synthetic voice capable of producing novel language. He separately message-banked selected phrases and recordings of his actual laughs. His five labeled laugh macros were:

  • BIG GAY CACKLE
  • EVIL GOBLIN GIGGLE
  • CAN'T BREATHE LOL
  • SILENT BUT DEADLY
  • SOFT LAUGH – for Logan Only

Charlie chose and organized vocabulary for English and Spanish conversation, spelling, medical and care discussions, names, boundaries, music, affection, profanity, and jokes. His stored phrase “Let me nap, chaos goblins” was one part of this personally authored system. Ava Keller and Logan Weston helped informally as chosen family with setup and preservation of his customized material; Charlie was never Ava’s patient, and he remained the author of his communication and the decision-maker about his AAC.

Charlie’s access method was configured around his needs at each stage. The software he used supported multiple access options, but the particular input method he selected is not part of his documented system.

During his 2029 Grammy speech, Charlie used his biological spoken voice. His later use of AAC for public events, creative work, family conversation, travel, and medical care did not retroactively change that speech’s communication mode.

Caleb Ross

Main article: Caleb Ross

Caleb combined AAC symbols and device selections with gesture, facial expression, body movement, deep vocalizations, and consistent speech approximations. “Wuhhh” requested water, “Mmmm-fuh” named Mufasa, and “Ma” or “Mama” addressed Jess. His father-vocalization, “Daaa,” first named Danny and later also named Noah. Jess learned twenty distinguishable vocalizations and familiar changes in his muscle tension, attention, and posture.

His global developmental and cognitive delays affected processing and expression without limiting his AAC to care requests. He identified his best friend, asked about an absent friend, communicated sadness about exclusion, and expressed a hope to marry someday while looking at Jae and Minh’s wedding photographs. Fatigue, illness, and distress could make composition harder, so familiar nondevice methods remained important alongside device access. Jess and his friends addressed him directly and allowed time for his own response.

Sofia Medina

Main article: Sofia Medina

Sofia combined spoken Spanish and English with signs, gesture, facial expression, touch, and an AAC tablet. Her receptive language was stronger than her spoken expression, and the tablet gave her access to more complex preferences, humor, entertainment, and social connection. She navigated familiar sections independently, selected music and videos, and brought the screen to another person when she wanted to share something.

Her support circle treated the tablet as language rather than a toy or a lesser substitute for speech. Sofia’s first unexpected tablet-expressed preference showed Claudia that the system was revealing opinions her daughter already held. Illness and fatigue could reduce Sofia’s speech, so familiar listeners attended to her full communication system and allowed her to choose lower-effort channels.

Noah Reynolds

Main article: Tasha Reynolds

Noah Reynolds was a nonspeaking autistic AAC user with an intellectual disability and epilepsy. His mother Tasha supported his communication and regulation alongside seizure and sensory care.

Daily and Environmental Use

AAC systems move between private, professional, educational, medical, and public environments. A method that works at a desk may require different positioning or support during travel, in bed, outdoors, in a noisy room, or during a health crisis. Lighting can affect eye-gaze access; background noise can affect whether speech output is heard; fatigue and pain can affect every access method.

Communication access includes having the system within reach, powered, positioned, and available when privacy or urgent decision-making matters. Medical staff, educators, employers, and event organizers may need to allow additional response time and make space for the user’s device, interpreter, board, or support person without directing questions away from the user.

Communication and Social Interaction

AAC changes the mechanics and pace of a conversation, not the user’s ownership of it. Composition may require pauses that speaking partners are unused to allowing. Partners can preserve a natural exchange by waiting, watching for the user’s full range of signals, and treating device output as the person’s speech rather than as commentary from a machine or helper.

Humor, profanity, flirtation, storytelling, interruption, repair, and disagreement are all ordinary communication needs. Personalized vocabulary and recorded expressions can carry identity and relationships, while novel-language access prevents a person from being limited to predictions made by other people.

Interpreters and communication partners convey or support communication; they do not become the speaker. Questions, consent requests, and decisions remain directed to the AAC user.

Community, Culture, and Identity

AAC users form overlapping communities rather than a single culture or identity. Some identify strongly as nonspeaking, speech-disabled, autistic, disabled, or members of signing communities; others treat AAC primarily as one practical tool. Community discussion includes language access, device ownership, autonomy, communication rights, authorship, representation, funding, voice selection, and the right to use more than one modality.

Personalized voices, saved jokes, familiar phrases, and recordings can preserve continuity and intimacy. They do not make a system more authentic than one using a standard voice. Authenticity comes from the user’s authorship, access, and choices.

Barriers and Misconceptions

Common barriers include delayed assessment, narrow eligibility rules, device cost, funding denials, inadequate vocabulary, inaccessible layouts, lack of repair or training, communication-partner impatience, and systems that are unavailable outside school or therapy. A technically functioning device does not provide effective communication if the user cannot independently access it or is not allowed to use it freely.

AAC does not prevent speech development and is not reserved for people who have no speech at all. Use may be full-time, part-time, situational, or variable. Speech should not be demanded when AAC is more reliable, and successful speech at one time does not prove that speech will remain available under fatigue, illness, stress, or changing disability.

Fast composition is not a condition of meaningful communication. Slow movement, atypical vocalization, reduced eye contact, or inconsistent speech does not establish reduced understanding. Conversely, access to fluent device output does not establish the absence of cognitive or language disability. Each person’s communication, comprehension, and support needs must be understood directly.

Presuming a person’s right and ability to communicate is compatible with verifying that messages are independently authored. Facilitator-produced text should not be attributed to a disabled person merely because the content appears fluent or compelling.

Sources

Assistive Technology Communication Systems Communication AAC