Psychophysiological Correlates of Developmental Changes in Healthy and Autistic Boys.

Weismüller et al. (2015) recorded brain waves while boys with and without autism listened to sounds.

They tracked how a small wave called MMN changed with age.

All boys were between 8 and 18 years old.

MMN grew larger as boys got older.

Bigger MMN linked to better talking and thinking skills.

The wave could not tell which boys had autism and which did not.

Porter et al. (2008) saw smaller MMN in autistic kids.

The new study shows MMN grows with age, so the early small wave may catch a delay, not a fixed deficit.

Gillespie-Lynch et al. (2019) found only weak links between social skills and most brain measures.

Benjamin’s team shows MMN is one of the few ties that is steady, giving us a clear marker to watch.

You can use MMN as a quick, non-verbal check on auditory growth during reassessments.

If the wave is still small in an older child, add language and executive-function goals.

Pair auditory tasks with active attention cues, since automatic brain response alone may not be enough.