No tune or … Yesterday he was humming/moaning a lot to himself. My son's most annoying tic is having to touch everything around him - especially in … So technically ANY behavior done in repetition in order to calm, or maintain … Pediatric neurology: Autism is a complicated condition that is not yet full understood. My son is 3.7, undiagnosed fully, but most likely ASD, fairly high functioning. Shimming is simply a way for a person to calm themselves internally, or to emotionally self regulate in some way. ADHD and Autism both have 'tics'. Many tactics have … humming/moaning | Autism PDD. Share. by candance (pittsburg) I think the severely autistic person featured on youtube videos under cdfoakley and kgaccount show someone with the "autistic like" behaviors you discuss when it comes to constant humming … Unlike most people, individuals with autism may self-stimulate constantly. As a result, stimming may stand between them and their ability to interact with others, take part in ordinary activities, … Tics can be physical (ex: hand flapping) or verbal (like humming).