Social Motor Synchronization: Insights for Understanding Social Behavior in Autism.

Fitzpatrick et al. (2017) asked children with autism to move in time with another person. They measured how closely each child matched the partner’s rhythm. The team also rated autism severity and social-cognitive skills.

No balls, bikes, or balance beams were used. The task was simply clapping or tapping together while cameras tracked tiny time gaps.

Kids who stayed better in sync showed milder autism traits and stronger joint-attention skills. The link stayed even when the child had normal motor control.

In plain words: the tighter the clap-to-clap match, the stronger the social-cognitive profile.

Hilton et al. (2010) saw big gross-motor delays in 9- to 12-year-olds with autism, but Paula’s team shows the social problem is not just weak muscles. Synchrony taps social timing, not strength.

Centelles et al. (2013) found kids with autism misread body-motion cues. Paula adds a number—sync index—that captures the same social-motor gap in real time.

Kostrubiec et al. (2018) later showed intentional coordination and social adaptability grow together with age. Paula’s 2017 data give the earlier snapshot that inspired that age-tracking work.

You can run a 30-second clap-along test during intake. A loose rhythm flags social-cognitive targets without long questionnaires. Pair the result with joint-attention drills or caregiver sync coaching shown helpful in Lv et al. (2022). Quick, objective, and no fancy gear needed.