Repetitive behavior in Rubinstein-Taybi syndrome: parallels with autism spectrum phenomenology.

Case-Smith et al. (2015) sent surveys to parents of children with Rubinstein-Taybi syndrome. They asked about each child’s repetitive habits and social skills. The team also surveyed parents of kids with Down syndrome and autism for comparison.

Children with RTS showed lots of hand flapping, rocking, and lining up toys. These behaviors stayed high even when the children had good eye contact and language. In other words, the repetitive habits did not ride along with social-communication problems.

Uljarević et al. (2017) later found that fear and repetitive behaviors rise together in Down syndrome. Their work extends the RTS picture by showing emotions can drive the same topographies in a different genetic group.

Iversen et al. (2021) pooled data from almost the kids and linked poor executive function to more repetitive behaviors across autism and typical development. Their meta-analysis quietly includes profiles like the RTS group, giving the survey a broader backbone.

At first glance, Lefebvre et al. (2021) seems to clash. They saw repetitive behaviors overlap heavily between families with autism and families with OCD, hinting at one big continuum. Jane’s team, however, sliced RTS behaviors away from autism traits. The difference is method: Aline tracked relatives who share genes, while Jane counted behaviors inside RTS itself. Both can be true—RTS may host its own flavor of rituals even while autism and OCD share another.

If you assess a child with RTS, score repetitive habits and social skills on separate sheets. A low social score does not predict high rocking, so treat each concern on its own track. Also watch for fear or set-shifting problems; they may feed the rituals even when social skills look fine.