If your child is non-speaking or has very little speech, a speech and language therapist may suggest augmentative and alternative communication, usually shortened to AAC. For many parents in Ireland, that suggestion brings a wave of worry and a single big question: if my child uses a device or pictures to communicate, will they ever learn to talk? It is one of the most common fears families raise, and it is built on a myth. This article walks through what the research actually shows and clears up the misunderstandings that hold families back.
Key takeaways
AAC means any tool or method that supports communication beyond speech, from picture boards to apps on a tablet.
The strongest evidence we have shows that AAC does not stop children from talking. If anything, it tends to support speech development.
AAC is not a last resort or a sign of giving up. It is often introduced early, alongside other speech and language work.
There is no age, IQ, or skill level a child must reach before they are allowed to start AAC.
A child can use more than one way to communicate at once, and most do.
In Ireland, AAC is provided through the HSE and through CORU-registered speech and language therapists working privately or in disability services.
What AAC actually means
AAC is an umbrella term. The "augmentative" part means adding to whatever speech a person already has. The "alternative" part means giving another route to communication when speech is not available or reliable. Both sit under the same heading.
AAC ranges from very simple to high tech. At the low-tech end are tools like pointing, gestures, photographs, symbol boards, and communication books. At the high-tech end are speech-generating apps on a tablet or dedicated devices that speak aloud when a child selects words or symbols. None of these is automatically better than another. The right system depends on the child, their motor skills, their vision, their interests, and the people around them.
It helps to remember that AAC is not one thing a child either uses or does not use. Most people who use AAC communicate in several ways at once, swapping between speech, gesture, facial expression, and a device depending on the situation. This is called multimodal communication, and it is exactly how communication works for all of us.
The myth: "If we use AAC, my child will never talk"
This is the worry that keeps many families from starting, so it is worth meeting head on.
The largest research review on this question was carried out by Millar, Light, and Schlosser and published in a peer-reviewed speech and language journal in 2006. The researchers gathered the available high-quality studies and looked closely at what happened to children's speech after they started using AAC. Across the studies, the overwhelming majority of participants showed gains in spoken words after AAC was introduced. None of them showed a decrease in speech. In other words, there was no evidence at all that AAC held speech back, and good evidence that it often helped it along.
Since then, the wider body of research has continued to point the same way. The pattern researchers and clinicians describe is that giving a child a reliable way to communicate tends to reduce frustration, build the back-and-forth of conversation, and create more reasons to vocalise, not fewer.
Why might AAC support speech rather than block it? A few reasons come up again and again:
It lowers the pressure. When a child has a way to be understood, communication stops being a struggle. That calmer foundation is often where speech attempts begin to appear.
It models language. When an adult points to symbols while speaking, the child hears the word and sees it at the same time. This pairing supports understanding and, for many children, spoken words too.
It builds the habit of communicating. AAC gives a child practice at starting interactions, taking turns, and getting a response. These are the building blocks under all communication, spoken or otherwise.
It is important to be honest here. AAC is not a guaranteed route to speech, and that is not its purpose. Some children who use AAC will go on to speak, some will use a mix of speech and AAC for life, and some will rely on AAC as their main voice. All of these are good outcomes, because all of them mean the child can communicate. The point is simply that choosing AAC does not close the door on speech. The research is reassuring on that.
Other common myths, briefly
"AAC is only for children who cannot speak at all." Not so. Plenty of children have some speech that is hard to understand, or speech that disappears when they are anxious or overwhelmed. AAC can fill those gaps and take the pressure off, which is why it is described as augmentative as well as alternative.
"My child has to reach a certain level before they are ready." There is no set of skills a child must master first, and no minimum age. The field has largely moved away from the old idea of "prerequisites." Waiting for a child to be ready often just means waiting while they have no way to communicate. Early access is generally better.
"Using a device is the easy way out and will make my child lazy." Communicating through AAC is genuinely hard work for a child, especially at the start. It takes learning, practice, and a lot of support from the adults around them. It is not a shortcut, and it does not reduce a child's motivation to speak.
"AAC will make my child stand out and feel different." Children who cannot make themselves understood already feel the difference, often through frustration and being left out. A reliable way to communicate usually does the opposite. It opens the door to friendships, choices, and being part of what is happening.
What introducing AAC looks like in practice
AAC is not handed over and left. A speech and language therapist works with the family to choose a starting system, then coaches everyone around the child to use it. A key idea is modelling, sometimes called aided language input. This simply means the adults use the AAC themselves while they talk, pointing to symbols or pressing buttons as they speak. Children learn any language by seeing and hearing it used around them, and AAC is no different. A child will not learn to communicate with a board or device that only ever sits in a bag.
In the early stages, the focus is usually on fun, motivating moments rather than drills. That might be choosing a snack, asking for "more" during a tickle game, commenting on a favourite programme, or telling a parent to "go" during play. The aim is to make communicating worthwhile, so the child wants to do it again.
Progress can be gradual, and that is normal. Like any new language, AAC takes time and repetition. Families often worry in the first weeks that nothing is happening, then notice their child reaching for the device unprompted a few months in.
What you can do at home
You do not need to be an expert to make a real difference. A few practical things help most:
Use the AAC yourself. Point to symbols or use the device while you talk, even for simple things like "all done" or "let's go." Your child needs to see the system in action.
Build it into daily routines. Mealtimes, bath time, getting dressed, and play are full of natural chances to communicate. These everyday moments are far more powerful than a set practice session.
Leave space and wait. After you ask something or model a word, pause and give your child time to respond. Many children need longer than we expect.
Respond to every attempt. If your child points, looks, presses a button, or vocalises, treat it as meaningful and answer it. This teaches them that communication works.
Keep the device available. AAC should be within reach all day, not saved for therapy. A voice that is locked away cannot be used.
Do not test or quiz. Avoid pointing at the device and asking "what's this?" Communication is for connecting, not for passing tests.
AAC options and support in Ireland
In Ireland, children usually access AAC through the HSE, often via a Children's Disability Network Team or a local speech and language therapy service. Assessment for a communication system, including high-tech devices, is typically carried out by a CORU-registered speech and language therapist, sometimes alongside an occupational therapist where seating and access need to be considered.
Waiting lists for HSE services can be long in many parts of the country, which is a real source of stress for families. While waiting, there is a lot parents can begin themselves, such as using gestures, photos, and simple symbol choices at home. Some families also choose to see a private speech and language therapist to get started sooner or to add support alongside HSE input. Whichever route you take, check that the therapist is registered with CORU, the statutory regulator for the profession in Ireland, and ideally a member of the Irish Association of Speech and Language Therapists.
Free and low-cost resources exist too. Many AAC apps have trial versions, symbol sets can be printed at home, and national and international organisations publish parent-friendly guides. A therapist can point you toward what suits your child rather than leaving you to navigate it alone.
The bottom line
The fear that AAC will stop your child from talking is understandable, but the evidence does not support it. The best research we have shows that AAC does not hinder speech, and frequently goes hand in hand with gains in spoken words. More importantly, AAC gives your child something they need right now: a reliable way to be understood, to make choices, and to connect with the people around them. That is not a step away from communication. It is communication. If your child is struggling to be understood, speaking to a CORU-registered speech and language therapist about AAC is one of the most useful things you can do, and starting sooner is almost always better than waiting.
Sources
Related on Lingo
Online speech and language therapy in Ireland, with no referral or waiting list.
This article is based on current peer-reviewed research and clinical guidelines. It is intended for informational purposes and does not replace professional clinical advice.