A Mexican research team developed a rhythm game that flags dyslexia risk in children as young as four — before they read a word. Here is the science behind why it works, and what it means for parents who suspect early risk.

Common questions

What is Rhythm Heroes and how does it work?

Rhythm Heroes is a video game prototype developed at CICESE in Mexico that asks children to synchronize with rhythms, reproduce patterns, and recall rhythmic sequences. The game records how children respond to these tasks to flag whether a specialized assessment is warranted. It is designed for children as young as four — before formal reading begins. It is not yet commercially available and does not diagnose dyslexia.

Why does rhythm processing predict dyslexia risk?

Goswami’s Temporal Sampling Framework explains the connection: the brain’s reading system depends on accurate tracking of the acoustic rhythm of speech — the beat-pattern of syllables and sounds. Children who later develop dyslexia show impaired synchronization between their brain rhythms and this speech beat structure, and this difference is present before reading begins. Because phonological processing (the foundation of reading) is built on rhythm processing, a rhythm deficit is a pre-literacy signal for reading risk.

Does a rhythm test diagnose dyslexia?

No. Rhythm Heroes is a screener, not a diagnostic tool. A screener is a starting point — it flags children who may benefit from a closer look, not a verdict. A screener does not diagnose dyslexia and does not replace a professional evaluation. If your child might need formal accommodations (an IEP or 504 plan), or you suspect a vision, hearing, or medical cause, a professional evaluation is the route to those supports. A screener helps you decide whether that evaluation is the right next step.

What should I do now if I think my pre-reader is at risk?

You do not have to wait for reading failure. Phonological awareness, auditory processing, and rhythm processing are all observable and supportable before formal reading begins. Ask your child’s preschool or kindergarten teacher whether pre-literacy auditory and phonological awareness activities are part of the curriculum. Consider a multi-system evaluation that looks at auditory processing, working memory, and language processing — not only early letter knowledge. A screener is a reasonable first step; a professional evaluation is the route to formal supports and accommodations.