Brief report: imitation of meaningless gestures in individuals with Asperger syndrome and High-Functioning Autism.

Stieglitz Ham et al. (2008) watched the kids with Asperger or high-functioning autism copy 12 silly hand and finger poses. The poses had no meaning, like touching thumb to pinky while pointing up.

Twenty typical kids matched for age and IQ did the same task. A camera scored how close each copy was and what went wrong.

The autism group scored about 30 percent lower. Most errors came from twisting the wrong finger or aiming the hand the wrong way.

Kids with better visual-motor scores made fewer errors. Social skill scores did not predict imitation success.

Chetcuti et al. (2019) saw the same motor pattern: when the action had tricky steps, kids with autism fell further behind. Both studies point to motor planning, not lack of interest.

Green et al. (2020) tested adults with autism on a new joystick task. They also stayed shaky on force and angle control, showing the visuomotor gap lasts into adulthood.

Pan (2014) found wide motor delays in older kids with autism. Together the papers say: check basic motor control before you ask for smooth imitation.

Before you teach a sign-language sign, dance step, or vocational gesture, test simple finger and wrist moves. If the child twists joints the wrong way, break the skill into tiny parts and give extra visual cues like colored stickers on nails. Do not assume poor imitation means poor attention; the engine may just need tuning.