Augmentative and alternative communication (AAC)
Communication can include speech-generating devices, picture systems, signs, writing, gestures, and other tools. The right supports vary from person to person.
Communication
Communication needs and methods vary significantly from person to person. This section helps visitors understand common supports, questions to ask, and where evidence or professional disagreement matters.
Communication can include speech-generating devices, picture systems, signs, writing, gestures, and other tools. The right supports vary from person to person.
Speech-language pathologists may evaluate speech, language, literacy, feeding, and AAC needs in schools, clinics, hospitals, and community settings.
Limited speech does not tell you what a person understands. Communication support should preserve dignity, access, and opportunities to express preferences and ideas.
Communication access can also include ASL interpreters, CART captioning, translated materials, and accommodations for appointments, meetings, and public services.
The Support Index may include information about approaches such as Spelling to Communicate (S2C), RPM, and related methods. These approaches are subject to substantial professional and scientific debate. Listings may still be included, but the site should not present them as scientifically established when that has not been demonstrated.
Where relevant, we will summarize available research, professional criticism, evidence limitations, and positions published by major professional organizations. See our evidence standards.