Body awareness in children with mental retardation.

Simons et al. (2009) gave toddlers with intellectual disability a simple body-part test. They pointed to parts on themselves and named them out loud.

The team split the kids into two groups: Down syndrome and other ID causes. They wanted to see who knew body words and who could say them.

Every child with ID scored lower than same-age peers. The Down kids understood the words but could not say them.

Kids with other ID causes could say more body words, even though both groups knew the same number inside.

Waldron et al. (2023) later showed that short language games give Down preschoolers a tiny boost in flexible thinking. The gap Johan found may explain why the boost fades so fast—if you can’t say the words, you can’t use them to plan.

Hausmann-Stabile et al. (2011) used the same kind of matched-group design with Down babies. They watched how toy size changed reaching moves. Together the papers tell us: small changes in task setup matter a lot when you test Down syndrome.

Farrant et al. (1998) looked at adults and found the Down group showed more mood signs but less hitting than other ID adults. Johan’s toddler gap may be the start of a lifelong profile where Down syndrome shows feelings inside more than outside.

When you test a child with Down syndrome, check both “knows” and “can say.” If you only record the spoken answer you may mark them lower than they really are. Use pictures or pointing first, then give extra wait time for the spoken answer. This one tweak keeps kids out of the wrong program and gets goals set at the right level.