Visual orienting deficits in high-functioning people with autism.

Sisson et al. (1993) watched the eyes of 14 high-functioning autistic adults and 14 matched controls. A small light popped up on the left or right side of a screen. The team timed how fast each person moved their eyes toward the light.

They also tested whether bright or dim lights changed the speed. All participants had IQs above 80 and could sit still in a quiet lab room.

Autistic adults took longer to start their eye movement. They also missed the light more often than controls. The delay happened with both bright and dim lights, so it was not a vision problem.

The authors say the brain’s “attention shift” system works more slowly in autism.

Miller et al. (2014) ran a bigger set of detection and discrimination games. Kids with ASD were again slower, showing the speed problem holds even when the task gets harder.

Burrows et al. (2018) seems to disagree: their ASD group moved faster than typical kids when distracting lights sat close to the target. The key difference is layout. Sisson et al. (1993) used one lonely light; Burrows et al. (2018) surrounded the target with bright neighbors. Close flankers may trigger a quick “utilitarian” glance in autism, while lone lights do not.

Wang et al. (2021) adds another layer. Some autistic children actually prefer biological motion over spinning gears. Slow orienting does not mean every visual hook works the same; check each child’s preference before you pick stimuli.

When you flash a card, point to a screen, or call “look,” give clients with autism an extra second. Use simple, uncluttered visuals most of the time. If you need a rapid response, try placing the cue close to other bright elements—this may tap the faster “utilitarian” path shown in later work. Always test; not every child fits the average delay.