1 in 50
According to the 2019 Canadian Health Survey on Children and Youth, about 1 in 50 children and youth aged 1 to 17 in Canada had an autism diagnosis
Direct answer
Stimming refers to repetitive self-stimulatory behaviors, rocking, hand-flapping, humming, or other repetitive actions. For autistic people, stimming serves important functions: self-regulation, sensory input, expressing emotions, and coping with stress. Stimming is generally healthy and should only be discouraged if it causes injury.
Autism information sources · Verified 2026-08-10
In brief
In short
- Stimming serves regulatory and communicative functions for autistic people
- Types include visual, auditory, tactile, vestibular, and olfactory stimming
- Autistic adults describe stimming as a coping and self-regulation tool
- Only intervene if stimming causes physical harm or significant safety concerns, with individual consent
Who this affects
These challenges are common among the children waiting for services.
Ontario's figures, as of May 2026 (MCCSS FOI via OAC · May 2026).
Registered
91,974Children registered
Total registered in the Ontario Autism Program
Funded
20,711Have active funding
22.5% of registered children
Without active agreement
71,263Without an active funding agreement
An administrative status; it does not confirm current service delivery.
Show as table
| Metric | Value |
|---|---|
| Children registered | 91,974 |
| Have active funding | 20,711 |
| Without an active funding agreement | 71,263 |
What Is Stimming?
Stimming is repetitive self-stimulatory behavior, such as hand-flapping, rocking, humming, or repeating sounds, that a person does to self-regulate or for sensory satisfaction. The word is most often associated with autism, but stimming is a universal human behavior. Neurotypical people fidget, tap their feet, doodle, and twirl their hair, all forms of stimming. In autistic people, stimming tends to be more frequent, more varied, and more functional, serving as a primary tool for nervous system regulation.
For many autistic people, stimming is an integral part of how they process and navigate the world. It is not a symptom of impairment or a behavior that needs to be trained away. Contemporary autism advocacy, including the positions of many autistic-led organizations, strongly endorses accepting and accommodating stimming as part of respecting autistic neurology.
This represents a significant shift from older approaches that sought to eliminate stimming through behavioral intervention. Current best practices focus on understanding the function of a stim and supporting the person's overall regulation, not on suppressing the behavior itself.
Types of Stimming
Stimming can be categorized by the sensory system it engages. An individual may engage in many different types across different situations, reflecting their unique sensory profile.
- Visual
- Watching spinning objects, moving fingers near the face, gazing at lights, flickering patterns
- Auditory
- Humming, repeating words or phrases (echolalia), listening to the same sound on loop, making repetitive sounds
- Tactile
- Touching particular textures, tapping surfaces, scratching, running fingers along edges, rubbing fabrics
- Vestibular
- Rocking, spinning, jumping, swinging, involving the sense of balance and movement
- Proprioceptive
- Squeezing, pressing, hand-flapping (generates joint input), wearing tight clothing, heavy lifting
- Oral / Olfactory
- Chewing, biting or mouthing objects, smelling clothing or objects, seeking particular scents
The Functions of Stimming
Stimming serves several important neurological and emotional functions. The most commonly identified are:
- sensory regulation
- (reducing overwhelming input or providing needed stimulation to an under-responsive system);
- emotional expression
- (hand-flapping when excited, rocking when anxious or distressed);
- stress reduction
- (providing predictable sensory input that calms the nervous system in unpredictable environments); and
- communication
- (some stims signal emotional states to people who know the individual well).
Autistic adults have described stimming as a self-regulation mechanism and reported thatother people may discourage it. Kapp and colleagues' 2019 study identified self-regulation and social acceptance as themes in autistic adults' accounts of stimming.
For parents, educators, and support workers, this means that allowing and accommodating stimming is not permissiveness, it is supporting the autistic person's ability to function, learn, and regulate effectively.
When Stimming Becomes a Concern
The vast majority of stimming does not require intervention. A stim warrants attention only when it is causing physical harm (such as head-banging resulting in injury, or skin-picking causing wounds), or when it poses an immediate safety risk. Even then, the approach should not be to simply stop the stim, but to understand its function:
- What sensory input or regulatory need is the person trying to meet?
- Can a safer alternative that provides similar input be offered?
Social acceptability is a poor reason to suppress stimming. The discomfort of neurotypical observers does not justify removing an autistic person's primary regulatory tool. Where social environments genuinely limit an autistic person's opportunities (for example, in job interviews or formal settings), this is a conversation to have with the autistic person about their choices and options, not a unilateral decision to eliminate the stim through behavioral training.
The Acceptance Approach
Contemporary autism research and autistic-led advocacy organizations strongly endorse accepting stimming as a natural part of autistic neurology. The guiding principle: if a stim is not causing physical harm, it should be accommodated, not suppressed. Creating environments where autistic people can stim freely is an act of respect and inclusion.
Frequently Asked Questions
Stimming, short for self-stimulatory behavior, refers to repetitive movements, sounds, or sensory inputs that a person engages in for self-regulation or sensory satisfaction. In autistic people, stimming is a natural and typically healthy behavior. Examples include hand-flapping, rocking, humming, spinning, repeating phrases or sounds (echolalia), tapping, and pacing. Stimming is not exclusive to autism, all people engage in some form of self-stimulatory behavior (fidgeting, nail-biting, hair-twirling), but it tends to be more frequent and varied in autistic people.
Autistic people stim for many important reasons: self-regulation (calming an overwhelmed or under-stimulated nervous system), processing and expressing strong emotions (joy, excitement, anxiety, or distress), managing sensory input (blocking out excess stimuli or seeking needed input), communicating a state that may be difficult to express in words, and sometimes simply because it feels good. Stimming serves genuine neurological and emotional functions, it is not a symptom to be eliminated without understanding its purpose for the individual.
Stimming takes many forms across different sensory channels. Visual stimming: watching spinning objects, flickering lights, moving fingers near the eyes. Auditory stimming: humming, repeating sounds or phrases, listening to the same sound repeatedly. Tactile stimming: rubbing textures, scratching, tapping surfaces or body parts. Vestibular stimming: rocking, spinning, jumping. Proprioceptive stimming: squeezing, pressing, hand-flapping. Olfactory stimming: smelling objects or people. The specific stims an individual uses are personal and often reflect their sensory profile.
Most stimming is not harmful and should not be suppressed. Stimming that does not cause physical injury, does not significantly interfere with learning or daily functioning, and does not distress the person doing it should generally be accepted and accommodated. Autistic adults have described stimming as a coping and self-regulation tool. If a stim causes physical harm, the goal is to understand and address the underlying cause, not simply stop the behavior.
In most cases, no. Autistic adults have described being discouraged from stimming and described it as a coping and self-regulation tool. Consider whether the stim causes physical harm; if so, focus on understanding its function and finding safer alternatives, with the autistic child or young person involved wherever possible.
Where the waitlist stands
Families navigating autism services in Ontario face a documented multi-year wait. Here is the Ontario data — and a two-minute way to push back, when you are ready.
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Facts3
Sources3
Evidence supports autism screening and intervention commencing in the first 2 years of life — earlier identification directly enables earlier intervention during the highest neural plasticity window
WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement
Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.
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