What AAC is
Augmentative and alternative communication (AAC) is any method of communication that supplements or replaces speech. Low-tech AAC includes picture cards, symbol boards and PECS. High-tech AAC includes tablet apps and dedicated speech-generating devices. AAC is not a last resort — it is a lifelong toolkit that can be used alongside speech, sign, or as the primary voice.
The biggest myth
The most persistent myth is that giving a child AAC will "stop them speaking". Every peer-reviewed study since Millar et al. (2006) has found the opposite: AAC use is associated with equal or greater spoken language development, because it reduces the frustration and anxiety of not being understood.
When to start
As early as the child shows communicative intent (pointing, reaching, eye-gaze) but their spoken language lags behind their receptive understanding — often around 18-24 months for children who will later be diagnosed autistic. You do not need a diagnosis to start using AAC.
Core vocabulary first
The best AAC systems start with 40-60 core words (I, you, want, more, help, stop, yes, no, feel, go, come, do, is, big, little). Fringe vocabulary (specific nouns like "dinosaur", "iPad") comes second. Core words carry 80% of everyday communication.
Aided language modelling
Adults model AAC as they speak — pointing to symbols themselves while talking. Studies show this triples the child's AAC use within 6 weeks. It is by far the highest-evidence AAC teaching strategy.
How NeuroKids helps
The built-in AAC board is free forever, uses core-vocabulary layout, and can be customised with family-specific fringe words. Every button also speaks — so your child hears the word modelled every tap.