Developing a treatment for hand‐clapping maintained by automatic reinforcement using sensory analysis, noncontingent reinforcement, and thinning

Two children with autism clapped their hands for no social payoff. The team ran a five-minute sensory test. They let each child touch six items and watched which cut clapping the most.

The top item became the noncontingent reinforcer. They gave it every 30 s, then stretched the gap to 5 min while adding brief extinction. Sessions happened at home and school.

Hand clapping dropped to near zero once the matched item was always available. When the schedule thinned to every 5 min, low clapping held steady. Gains lasted two weeks with no extra coaching.

Rooker et al. (2018) reviewed 33 years of data and found NCR works best when items come from a competing-stimulus test, not a simple preference survey. Slocum’s brief five-minute test mirrors that advice and gets the same good result.

Llinas et al. (2022) asked, "Is continuous access better than a lean schedule?" They saw faster drops with continuous access. Slocum kept some item contact during the 5-min gaps, so both studies agree: keep the item in play, don’t lock it away.

Lerner et al. (2012) warned that thinning NCR without extinction can bring the behavior back. Slocum added short extinction periods and avoided the rebound, showing the old risk is easy to dodge if you plan for it.

You can test sensory items in under ten minutes and pick the one that competes with stereotypy. Pair it with NCR, then thin the schedule once responding is stable. The whole package needs no extra staff and travels from home to school. Try it next time a client’s hands keep clapping with no social reason.