Increased Intra-Subject Variability of Neural Activity During Speech Production in People with Autism Spectrum Disorder.

Moya et al. (2022) compared brain activity while people spoke.

They scanned autistic and neurotypical adults during a simple speech task.

The team measured how much each person’s own brain signals jumped around from moment to moment.

Autistic speakers had more neural ‘jitter’ each time they talked.

The bigger the jitter, the more severe the autism traits.

Neurotypical speakers showed steadier brain patterns.

Wang et al. (2022) saw the same jumpiness, but in eye movements while kids looked at faces.

Ke et al. (2020) also found brain signals hopping around more in autism, yet they watched whole-brain resting networks.

All three studies link greater moment-to-moment variability to stronger autism traits, pointing to a shared instability trait that shows up in speech, gaze, and resting brain activity.

Franich et al. (2021) extend the idea: speech timing wobbles line up with timing wobbles in a drumming task, hinting that the jitter is domain-general, not just about talking.

If your client’s words, gaze, or timing swing widely across trials, don’t blame poor attention alone. Expect inconsistency as a core feature. Record several samples before you judge progress. Build in extra practice rounds and use clear external cues like metronome beats or visual prompts to steady performance.