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Nonspeaking communication

Nonspeaking communication

An overview of who is nonspeaking or minimally speaking, the communication methods open to them, what the research shows about each, and how ability is assessed when speech cannot answer. The three entries cover AAC, the facilitated-communication dispute, and presuming competence and assessment. Each section links to a full entry.

This part is about people who do not speak, or speak very little, and the ways they can communicate. The pages cover AAC, the big argument about helped typing, and how to test what someone knows when they cannot answer out loud.

Last reviewed 13 October 2026 · one person's reading of the research · 19 sources

What this topic covers Established

This topic covers who is nonspeaking or minimally speaking, the communication methods open to them, and what the research shows about each. Three entries are here now. AAC describes the devices, boards, signing and picture systems that add to speech or stand in for it, and the thin adult evidence behind them. The facilitated-communication entry sets out what is established and what is not about partner-supported methods, in the four parts a contested subject takes. Presuming competence and assessing nonspeaking people sets out why tests that need a spoken or pointing answer underread many nonspeaking people, how ability can be measured without a speech response, and the authorship question it leaves open. People whose speech comes and goes rather than being absent are covered in Communication styles, under situational mutism.

This part is about people who do not speak, or speak very little. It is about the ways they can communicate. Three pages are here now. One is about AAC, the boards and devices people use when speech is hard. One is about helped typing methods, and who really writes the words. One is about testing what a person knows when they cannot answer out loud. Some people can speak at some times but not at others. That is called situational mutism. It is covered in Communication styles.

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Established

A scope section: what this topic covers, and what is still to come. Its factual claims are taken from the entries it introduces.

Established

This part tells you what the topic covers. The facts come from the pages below.

AAC: what it is and what the research shows Established

AAC, augmentative and alternative communication, is the term for the ways people communicate when speech is hard or not available, from gestures, signing and picture boards to speech-generating devices and apps.1 The usual worry — that giving a child a device will hold speech back — is not supported: a 2006 meta-analysis of 23 studies, a 2008 systematic review and a 2021 update found that AAC does not reduce speech and that most people gain some, though the gains are modest.2,3,4 The evidence thins sharply with age. The largest review, 69 papers covering 421 autistic participants from age 1 year 8 months to 44 years, found only three studies of adults, five people in all, and rated study quality generally low.5 What exists for adults is mostly measurement: two caregiver-report tools, a depression screen and a short daily-living measure, were tested with non- or minimally speaking autistic adults.6,7

Full entryAAC: what it is and what the research shows What augmentative and alternative communication covers, what it is used for, whether it holds speech back, and how thin the research gets once the children it studies become adults.

AAC means augmentative and alternative communication. It is the name for the ways people communicate when speech is hard or missing. These include gestures, sign language, picture boards, and talking devices or apps.1 Some people worry that giving a child a device will stop them learning to talk. The research says it does not. Three reviews found that AAC does not reduce speech. Most people gain a little.2,3,4 Most of the research is with children. The biggest review looked at 69 studies. Only three were about adults, five people in all.5

Full entryAAC: what it is and what the research shows What augmentative and alternative communication is, what people use it for, whether it stops speech, and why the research is thin once children grow up.
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Established

Summarizes AAC. The finding that AAC does not hold speech back rests on three reviews that agree across a decade, though the gains are modest and the samples are mostly children. The adult evidence is a gap the entry states plainly.

Established

Three big reviews agree that AAC does not stop speech. Most of the research is with children, so we know less about adults.

Facilitated communication and spelling to communicate Established

Facilitated communication (FC) is a technique in which a person points to letters while a facilitator gives physical support, usually to the hand, wrist, elbow or shoulder.8 Rapid prompting method (RPM) and spelling to communicate (S2C) keep the board held without that physical contact.9,10 The question that decides them is who forms the words. The evidence comes from message-passing tests, in which the person and the facilitator are shown different things: a 2014 systematic review of those tests called the evidence for facilitator control "unequivocal," and a 2018 update found nothing new.11,12 No controlled authorship test of RPM, S2C or the Spellers Method has been found as of October 2026, and a 2026 systematic review set up to find one included no eligible study.13 Professional bodies including ASHA oppose the methods, while a group of researchers argues they deserve fresh study; both sides acknowledge that some people taught with them later typed without physical support.10,14

Full entryFacilitated communication and spelling to communicate Physically supported facilitated communication fails controlled tests of who wrote the message. Spelling to communicate and rapid prompting have no such test in the peer-reviewed literature. What the evidence shows, who holds each view, and what would settle it.

Facilitated communication (FC) is a way of communicating. A person points to letters on a board or a keyboard. A helper supports their hand, wrist, elbow or shoulder.8 Newer methods are called rapid prompting (RPM) and spelling to communicate (S2C). They hold the board without touching the person.9,10 The big question is who picks the words. In one kind of test, the person and the helper are shown different things. What gets typed often matches what the helper saw. A 2014 review said the proof of this was very strong.11,12 No test like that has been done for RPM or S2C as of October 2026. A 2026 review looked for one and found none.13 Some groups say the methods should not be used. Others say they should be studied more.10,14

Full entryFacilitated communication and spelling to communicate Some ways of helping nonspeaking people communicate have a big problem. The words may come from the helper, not the person. Here is what we know and what we do not know yet.
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Established

Summarizes Facilitated communication and spelling to communicate. The finding that physically supported FC fails controlled authorship tests is established by a systematic review and repeated message-passing tests. The entry labels the question for RPM and S2C as a hypothesis, because no controlled authorship test has been published.

Established

Tests show that when a helper supports someone's hand or arm, the helper often writes the words. The newer methods, which do not touch the person, have not been tested that way.

Presuming competence and assessing nonspeaking people Established

Tests that need a spoken or pointing answer underread many nonspeaking people. In 35 minimally verbal autistic adolescents and adults, matching words to pictures by looking rather than pointing raised accuracy from about 57% to 78%, against 97% in non-autistic controls, in a preprint that is not peer reviewed.15 In a much larger sample of 1,579 minimally verbal autistic children and adolescents, understanding ran ahead of speech on average, though only about a quarter showed a significantly wider receptive than expressive level as individuals, and motor skills were the strongest predictor of the gap.16 Assessment data are often missing altogether: in a US surveillance study of 7,084 eight-year-old children with autism, IQ data were absent for about 39%, verbal-status data for about 26% and adaptive data for about 44%.17 Ways of measuring without a speech response exist and are feasible at small scale: an eye-tracking grammar task completed with usable data by more than 85% of the autistic children in it, and a language checklist widened to count words a person produces by any means, including AAC, which recorded about 14 more words on average.18,19 On the authorship question next door, the entry keeps the labels this subject carries: physically supported facilitated communication fails controlled authorship tests, and independent authorship in spelling to communicate and rapid prompting remains a hypothesis, with no controlled test published.11,13

Full entryPresuming competence and assessing nonspeaking people Why tests that need a spoken or pointing answer miss ability in many nonspeaking autistic people, how ability can be assessed without a speech response, and the authorship question this entry leaves open.

Many tests ask a person to speak or point. People who cannot do that well can look less able than they are. In one small study, 35 people matched words to pictures by looking instead of pointing. Their score rose from about 57 in 100 to 78 in 100.15 In a much bigger study of 1,579 children, most understood more than they could say.16 Test results are often missing from records too. About 39 in 100 autistic eight-year-olds had no IQ score recorded.17 Other ways to test exist. One uses eye-tracking, and most autistic children could do it.18 Another counts words a child makes by any means, not just speech.19

Full entryPresuming competence and assessing nonspeaking people Some autistic people do not speak. Tests that need a spoken or pointed answer can make them look less able than they are. This entry explains the idea of presuming competence, what the tests miss, and the one question about typing that is still open.
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Established

Summarizes Presuming competence and assessing nonspeaking people. Its definition and its finding on who the research leaves out are established; the assessment studies it reports are single small studies and stay emerging. The authorship sections keep this subject's labels: established for physically supported FC, hypothesis for S2C and RPM.

Established

This is a summary. The idea and the finding about who research leaves out are well settled. The ways of testing are early, from single small studies.

Sources

  1. 1American Speech-Language-Hearing Association. Augmentative and Alternative Communication (AAC). ASHA, 2026. https://www.asha.org/public/speech/disorders/aac/
  2. 2Millar DC, Light JC, Schlosser RW. The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities: a research review. Journal of Speech, Language, and Hearing Research, 2006. https://doi.org/10.1044/1092-4388(2006/021)
  3. 3Schlosser RW, Wendt O. Effects of augmentative and alternative communication intervention on speech production in children with autism: a systematic review. American Journal of Speech-Language Pathology, 2008. https://doi.org/10.1044/1058-0360(2008/021)
  4. 4White EN, Ayres KM, Snyder SK, Cagliani RR, Ledford JR. Augmentative and Alternative Communication and Speech Production for Individuals with ASD: A Systematic Review. Journal of Autism and Developmental Disorders, 2021. https://doi.org/10.1007/s10803-021-04868-2
  5. 5Mifsud S, Thomas D, Bowron R, Sutherland R. The Predominant Focus Is Still on Teaching Children to Make Requests: A Systematic Review of AAC for Autistic Adults and Children. International Journal of Language & Communication Disorders, 2026. https://doi.org/10.1111/1460-6984.70251
  6. 6Wilkinson E, Pai K, Jahoda A, Hastings RP, Bal VH. Depression Screening Tools for Non- and Minimally Speaking Autistic Adults: Feasibility, Psychometrics, and Wider Validity. Autism, 2026. https://doi.org/10.1177/13623613261480395
  7. 7Wilkinson E, Yu YY, Bal VH, Clarke EB. Examining the Utility of the W-ADL to Assess Daily Living Skills in Non- or Minimally Speaking Autistic Adults. Journal of Autism and Developmental Disorders, 2026. https://doi.org/10.1007/s10803-026-07309-0
  8. 8American Speech-Language-Hearing Association. Facilitated Communication. Position statement PS2018-00352, 2018. https://www.asha.org/policy/ps2018-00352/
  9. 9American Speech-Language-Hearing Association. Rapid Prompting Method. Position statement PS2018-00351, 2018. https://www.asha.org/policy/ps2018-00351/
  10. 10American Speech-Language-Hearing Association. Comments on the IACC Strategic Plan, 2026-2028 (working draft of July 17, 2026). August 20, 2026. https://www.asha.org/siteassets/advocacy/comments/asha-comments-on-interagency-autism-coordinating-committee-strategic-plan_08202026.pdf
  11. 11Schlosser RW, Balandin S, Hemsley B, Iacono T, Probst P, von Tetzchner S. Facilitated Communication and Authorship: A Systematic Review. Augmentative and Alternative Communication, 2014. https://doi.org/10.3109/07434618.2014.971490
  12. 12Hemsley B, Bryant L, Schlosser RW, Shane HC, Lang R, Paul D, Banajee M, Ireland M. Systematic review of facilitated communication 2014-2018 finds no new evidence that messages delivered using facilitated communication are authored by the person with disability. Autism & Developmental Language Impairments, 2018. https://doi.org/10.1177/2396941518821570
  13. 13Schlosser RW, Shane H, Bryant L, Beals K, Todd J, Lang R, Skinner S, Hemsley B. Systematic Review of Authorship in Rapid Prompting Method, Spelling to Communicate, and Variants: Outcomes, Significance and Clinical Implications. Review Journal of Autism and Developmental Disorders, 2026. https://doi.org/10.1007/s40489-026-00569-7
  14. 14Jaswal VK, Prizant BM, Barense MD, Patten K, Stobbe G. Why We Need to Study Assisted Methods to Teach Typing to Nonspeaking Autistic People. Autism Research, 2026. https://doi.org/10.1002/aur.70176
  15. 15Ellert K, Sykes-Haas HS, Shefer-Kaufmann N, Bonneh YS. Hidden Literacy in Minimally Verbal Autistic Individuals Revealed by Eye Gaze. Preprint (not peer reviewed), 2025. https://doi.org/10.1101/2025.11.09.687411
  16. 16Chen Y, Siles B, Tager-Flusberg H. Receptive language and receptive-expressive discrepancy in minimally verbal autistic children and adolescents. Autism Research, 2024. https://doi.org/10.1002/aur.3079
  17. 17Shaw KA, Russell LA, DiRienzo M, et al. Profound Autism Prevalence and Assessment Practices in a Population-Based Study. Journal of the American Academy of Child & Adolescent Psychiatry, 2026. https://doi.org/10.1016/j.jaac.2026.09.019
  18. 18Michel L, Bataillon C, Bonnet-Brilhault F, et al. Feasibility and Relevance of an Eye-Tracking-Based Assessment of Morphosyntactic Comprehension in Young Autistic Children. Autism & Developmental Language Impairments, 2026. https://doi.org/10.1177/23969415261451402
  19. 19MacDonald-Prégent A, McGuinness L, Nadig A. Value Added by Assessing Nonspoken Vocabulary in Minimally Speaking Autistic Children. American Journal of Speech-Language Pathology, 2025. https://doi.org/10.1044/2024_AJSLP-24-00290