The comparative and developmental study of auditory information processing in autistic adults.

Researchers recorded brain waves while autistic adults listened to tones. They looked at two early peaks called AEP and MSP. These peaks show how fast the brain registers sound.

The team wanted to know if these adults had child-like or grown-up patterns. They compared the wave shapes to typical adult data.

The autistic adults showed adult-shaped MSP waves. The pattern looked mature, not delayed.

The study could not link the brain data to any behavior or therapy goal. It only said the waves looked grown-up.

Adams et al. (2024) also measured auditory brain waves in autistic adults. They found slower N1 peaks and weaker gamma activity that matched real-life sensory issues. Their data clash with the tidy "mature" picture from Nakamura et al. (1986). The gap likely comes from different age bands and newer math tools.

Liu (2025) split the story further. Pre-attentive markers like MMN stayed normal, but attention-needed markers like P3b dropped. This means the brain can register sound yet fail when it must pay attention. K et al. missed this step because they only checked early, automatic peaks.

Redquest et al. (2021) added skin-conductance and MEG data showing autistic people habituate less to repeated sounds. Their longer-lasting neural response updates the 1986 view: the wave shape looks adult, but the brain keeps firing instead of calming down.

The 1986 paper tells us early auditory peaks can look normal in autistic adults. Later work shows the story is bigger: speed may be fine, but attention, habituation, and gamma sync can still be off. When you run auditory programs or assessments, do not trust "normal" brain waves alone. Check how the person reacts over time and under load.