Time estimation among low-functioning individuals with autism spectrum disorders: evidence of poor sensitivity to variability of short durations.

Laugeson et al. (2014) asked low-functioning children with autism to judge tiny differences in short beeps. The beeps lasted less than one second. A mental-age-matched group of typically developing kids did the same task.

The team used a quasi-experimental design. They compared how well each group noticed small changes in sound length.

Children with autism missed small shifts in timing far more often than their peers. Their brains seemed less sensitive to quick sound changes.

The result was labeled negative because the autism group performed worse, not better or equal.

Morimoto et al. (2018) saw the same millisecond-level problem when kids tapped their finger to a beat. Both studies point to noisy timing inside the autism brain.

Yet two papers show the opposite. Capio et al. (2013) found autistic people actually outperform others at spotting 17 ms visual flashes. De Meo-Monteil et al. (2019) saw equal or better visual-motor timing in adults with autism. The difference is modality: visual tasks can shine while auditory-like timing tasks struggle.

Finke et al. (2017) add a twist. They found auditory gap detection linked to language scores, but visual timing stayed fine. Again, ears were weak while eyes were strong. The 2014 result sits inside this ears-weak pattern, not a global clock problem.

If your client has low verbal skills, do not trust tiny auditory cues. Give instructions at a steady pace and avoid rushed reinforcement delays. Pair verbal prompts with visual timers or color changes. Check visual schedules first—they may out-hear their ears.