Reducing stimulus overselectivity through an increased observing-response requirement.

One adult with autism and intellectual disability sat at a computer. The screen showed a sample picture and two choice pictures.

In the first phase the adult clicked the sample once, then picked a match. Later phases made the adult click the sample ten times before choosing. The researchers kept switching the rules back and forth to see if more clicks changed how the adult looked at the pictures.

When the adult had to click ten times, he started looking at more parts of the sample. His matching got better and overselectivity dropped.

When the rule went back to one click, the old narrow focus returned. Ten clicks again fixed it. No extra training was needed—just more clicks.

Huguenin (2000) and Kennedy (2004) also cut overselectivity with computers, but they used long pretraining drills. The new study shows you can skip the drills and just ask for more clicks.

Foster et al. (1979) lowered overselectivity by changing the reward schedule. The new study keeps the same schedule and only changes the number of clicks, yet still works.

Together the papers say: you can attack overselectivity from three angles—more pretraining, different schedules, or simply more observing responses. Pick the one that fits your session time.

You now have a five-second tweak that widens attention. Before a matching task, tell the learner, “Click the picture ten times,” then let them choose. No new materials, no extra staff. Try it during tabletop or tablet work when you see a client locking onto one tiny feature.