Avengilante wrote:
Nind M, Kellett M (2002). 'Responding to individuals with severe learning difficulties and stereotyped behaviour' wrote:
Stimming is a repetitive BODY movement that is hypothesized to stimulate one or more senses. The term is shorthand for self-stimulation. Repetitive movement, or stereotypy, is often referred to as stimming under the hypothesis that it has a function related to sensory input.
Autistic individuals are sometimes known to stim. In some cases it helps with thinking or concentration while in others it can assist in bleeding off excessive excitement about something.
This is far too brief an explanation of stimming, and it doesn't really support what you're saying. In addition to "bleeding off excess excitement" it says "In some cases, it helps with thinking or concentration." Which isn't about anxiety at all. The previous paragraph also suggests a hypothesis that it has a function related to sensory input.
As for body movements - fingers and hair are part of the body. The DSM-IV criteria says:
Quote:
3. stereotyped and repetitive motor mannerisms (e.g hand or finger flapping or twisting, or complex whole-body movements)
That is, stereotypy covers a lot of territory.
Here's a not nearly exhaustive list of stims that actually includes twirling hair:
http://www.tsbvi.edu/seehear/archive/ma ... html#Chart