People with autism may know exactly what they want to say, but may be unable to say it. They may know every answer on a quiz, but have only
"The delay in activation of mouth muscles in Cattaneo’s study suggests that individuals with autism are not executing an action chain, but rather processing each movement sequentially. Under some conditions, it may become extremely difficult or impossible for someone with autism to intentionally control each individual step.
Self-reports from individuals with autism mirror this kind of difficulty with chained movements, and the need to execute movements as single components instead..."



















