Brief Report: Body Image in Autism: Evidence from Body Size Estimation.

Asada et al. (2018) asked people to estimate their own shoulder width. They compared adults with autism to neurotypical adults.

Each person stood in front of a screen. They adjusted lines to show how wide they thought their shoulders were.

Neurotypical adults were close to their real size. Adults with autism guessed wider than they really were.

The study shows a clear body-size error in autism.

Fiene et al. (2015) asked adults with autism to rate thirst and body awareness on paper. They also found big self-awareness gaps. Together, the two studies show the problem appears in both paper tests and live body tasks.

Kleinert et al. (2007) tested body posture recognition. They found adults with autism treat body postures like puzzle pieces, not whole shapes. The new study adds that even the size of one's own body can be wrong.

Sparaci et al. (2014) looked at moving stick figures and found no group difference. This seems opposite, but their task used motion cues and outside figures. Kosuke used still self-images, so the tasks tap different skills.

If a client with autism struggles to button a shirt or steer through a doorway, check for body-size errors. Ask the client to show how wide they think they are with their hands. If their guess is off, break dressing or navigation steps into smaller parts and give extra physical cues. Mark backpack width on the floor so they can see real space. These quick checks can save teaching time and cut frustration.