Brain routes for reading in adults with and without autism: EMEG evidence.
Adults with autism read like hyper-efficient decoders; give them extra help to link the word to its meaning.
01Research in Context
What this study did
Koegel et al. (2014) watched adult brains while they read.
Half the adults had autism, half did not.
The team used EMEG to see which brain areas lit up and when.
What they found
Adults with autism used more parietal “sounding-out” areas.
Their brains did not sort words by meaning.
They seemed to skip the usual fast “know-it-by-sight” path.
How this fits with other research
Craddock et al. (1994) saw the same phonetic shortcut in two autistic kids thirty years ago.
Manning et al. (2026) now show that preschool ERP signs can predict later word reading, pushing the story back to kindergarten.
Li et al. (2024) find autistic adults also slow at grasping metaphors, so the semantic gap is wider than just reading.
Gandhi et al. (2022) warn that every brain-imaging study uses different tools; the mixed pictures are expected, not conflicting.
Why it matters
Expect adult learners with autism to sound out words well but miss deeper meaning.
Pair phonics lessons with explicit semantic maps and comprehension checks.
Use pictures, synonyms, and real-life ties to glue the word to its sense.
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02At a glance
03Original abstract
Reading utilises at least two neural pathways. The temporal lexical route visually maps whole words to their lexical entries, whilst the nonlexical route decodes words phonologically via parietal cortex. Readers typically employ the lexical route for familiar words, but poor comprehension plus precocity at mechanically 'sounding out' words suggests that differences might exist in autism. Combined MEG/EEG recordings of adults with autistic spectrum conditions (ASC) and controls while reading revealed preferential recruitment of temporal areas in controls and additional parietal recruitment in ASC. Furthermore, a lack of differences between semantic word categories was consistent with previous suggestion that people with ASC may lack a 'default' lexical-semantic processing mode. These results are discussed with reference to dual-route models of reading.
Journal of autism and developmental disorders, 2014 · doi:10.1007/s10803-013-1858-z