Individuals with intellectual disability can self-teach in reading.

The team asked a simple question: can people with intellectual disability teach themselves to read new words?

They matched the adults and teens with ID to younger kids who had the same verbal mental age.

Each learner saw made-up words on a screen, heard the pronunciation once, then had to read them aloud later. No teacher help. Just the sound cue and the printed word.

Both groups learned the fake words equally well.

The ID learners sounded out the spellings on their own, the same way the younger kids did.

Their brains used phonological recoding—turning letters into sounds—to lock in the new spellings.

Chen et al. (2019) saw the same self-teaching power in Chinese preschoolers with autism. Same mechanism, different writing system.

Laugeson et al. (2014) and Meneghetti et al. (2018) show big EF and spatial deficits in Down syndrome. Those gaps might make you think reading is out of reach. The new study says: give them a chance to sound it out anyway.

The 1995 Polish follow-up found most adults with severe ID lose skills over time. Today’s paper shows learning can still happen if we offer the right setup.

You don’t need to drill every word. Hand the learner a new book, say the tough word once, then let them try. The data say they can store the spelling by themselves. Build daily 5-minute sound-it-out moments: menu items, bus signs, video game captions. Independence starts with one self-taught word.