The role of stereotypies in overselectivity process in Rett syndrome.

The team worked with girls who have Rett syndrome. All girls showed overselectivity, meaning they focused on just one part of a picture.

During tabletop lessons the girls often rubbed or wrung their hands. The teachers gently held the girls' hands in their laps while they taught new picture pairs.

The goal was to see if stopping the hand stereotypy helped the girls learn faster.

When the girls' hands were quietly held, they learned to pick the correct picture in fewer trials.

Stereotypy containment did not remove overselectivity, but it sped up the discrimination process.

In short, less hand movement meant faster learning.

Matson et al. (1989) also cut repetitive body movements. They used a competing-response method for muscle tics and got the same good result.

Zuriff (2005) surveyed students with Tourette syndrome and found that tics hurt grades and friendships. Angela et al. now show that simply holding the stereotypy can protect learning time.

Huang et al. (2017) saw that children with autism miss learning cues. By removing the hand noise, Angela et al. give those cues a clearer path in Rett syndrome.

You can borrow this low-tech move today. While you teach matching, colors, or PECS, keep the learner's busy hands gently contained in her lap or on the table. Expect faster acquisition without extra equipment or drugs. Record trials to see the gain for yourself.