Brief Report: Non-right-Handedness Within the Autism Spectrum Disorder.

Langseth and his team looked at 18 past studies. They added up the handedness data of 497 people with autism.

They asked a simple question: do these people use their right hand less often than the rest of us?

Yes. Kids and adults with autism are far more likely to be left-handed or mixed-handed.

The numbers are too big to ignore. About one in four of the autism group was not right-handed. In the general public it is only one in ten.

Sun et al. (2024) looked at 43 studies and saw the same hands move more slowly and with more wobble. Their review includes the very papers Langtseth counted, so the two stories lock together.

Blanchard et al. (1979) first noticed odd brain folds in autistic children. Their early case series hinted that the whole left-right plan can flip. Langseth’s numbers now give that idea real weight.

Laugeson et al. (2014) killed the myth that autistic kids see better than typical kids. Together with Langseth, the picture is clearer: brains in autism often wire differently, but this does not grant super senses.

When you test a new skill, place items at the child’s midline first. Watch which hand he uses most. Then place the item on that side so learning starts with the stronger, faster hand. This tiny setup tweak can cut frustration and speed up mastery.