Understanding Stimming: Why It Matters and How It Helps

If your child engages in behaviours like hand flapping, rocking, pacing, repeating sounds, or fidgeting with objects, you may have heard this referred to as “stimming.”

For many families, stimming can feel confusing or even concerning at first. You might find yourself wondering:

● Should I stop this?

● Is something wrong?

● Is this getting in the way of learning or development?

These are very valid questions. The short answer is: not necessarily. In many cases, stimming is not something to eliminate. When we better understand what stimming is and why it happens, we can find ways to better support our children.

What is stimming?

Stimming (short for self-stimulatory behaviour) refers to repetitive movements, sounds, or actions that a person uses to regulate their body or emotions.

This can include:

● Hand flapping or finger movements

● Rocking or pacing

● Repeating sounds or words

● Spinning objects

● Fidgeting with items

While stimming is often associated with autism, it’s important to recognize that everyone engages in forms of self-regulation. Things like tapping your foot, doodling, playing with your hair, or pacing while thinking can serve a very similar purpose. Stimming is simply a more visible or frequent way of doing this.

Why do individuals stim?

One of the most important shifts we can make is moving from asking “How do we stop this?” to “What might this be doing for my child?” Stimming often serves a meaningful and helpful function. Here are some of the most common reasons why individuals may stim:

To manage sensory input

Some individuals experience the world as very intense—lights may feel too bright, sounds too loud, or environments too busy. Stimming can help “balance” that input and make the environment feel more manageable. Research has consistently shown that many autistic individuals experience differences in sensory processing, which can impact how they respond to everyday environments (Baranek, 2002; Schaaf et al., 2014).

To increase focus and attention

For some individuals, movement or repetitive input actually helps them stay engaged. You might notice that your child listens better when they are moving, fidgeting, or engaging in repetitive actions. This is not uncommon—research suggests that certain types of movement can support attention and cognitive performance for some individuals (Sarver et al., 2015). In these cases, stimming is not getting in the way of learning—it may actually be supporting it.

To express emotions

Stimming is not always a sign of distress. It can also be a way of expressing joy, excitement, anticipation, or even frustration—especially for individuals who may not express emotions in more typical ways. For example, hand flapping might increase when a child is excited, just like someone else might smile, laugh, or jump up and down.

To regulate energy levels

Some individuals use stimming to release excess energy or to stay alert when they are feeling tired or under-stimulated. This can help their body find a more comfortable and regulated state.

To cope with anxiety or stress

In stressful or overwhelming situations, stimming can function as a calming strategy. Research and first-person accounts from autistic individuals highlight that repetitive behaviours can play an important role in reducing anxiety and supporting emotional regulation (Kapp et al., 2019). In these moments, stimming may be helping the individual feel safer and more in control.

When might stimming be a concern?

In many cases, stimming is helpful and does not need to be reduced or changed. However, there are some situations where additional support may be needed.

For example:

● If the behaviour is causing injury

● If it significantly interferes with daily activities or learning

● If it limits opportunities that are meaningful to the individual

Even in these cases, the goal is not simply to “stop the behaviour.” Instead, we want to understand why it is happening and what need it is meeting. From there, we can look at ways to support that need in a safer or more effective way, if needed.

What can parents do?

If you’re noticing stimming and feeling unsure how to respond, here are some helpful starting points:

Start with understanding, not stopping

Before trying to reduce a behaviour, pause and ask:

What might this be doing for my child right now?

This shift in perspective can completely change how we respond.

Look at the environment

Consider what’s happening around your child:

● Is it too loud, bright, or busy?

● Are there a lot of demands being placed at once?

● Does your child seem overwhelmed or under-stimulated?

Small changes to the environment can sometimes reduce the need for more intense forms of regulation.

Allow safe stimming

If the behaviour is not harmful, it is often okay—and beneficial—for individuals to continue engaging in it. Stimming can be an important tool for regulation, and removing it without providing alternatives can sometimes increase stress or dysregulation.

Offer supportive alternatives (when needed)

If a behaviour is unsafe or significantly interfering, you can support regulation by introducing alternatives such as:

● Fidget tools

● Movement breaks

● Access to quieter spaces

● Sensory supports tailored to your child

The goal is to meet the same need in a way that works for your child and their environment.

Support communication

When possible, help your child build skills to communicate their needs. This might include learning to say or indicate:

● “I need a break”

● “It’s too loud”

● “I need help”

This can reduce frustration and give your child more control over their environment.

How ABA can support sensory needs and stimming

At its best, Applied Behaviour Analysis (ABA) is not about eliminating behaviours that look different. It is about understanding why behaviour is happening and supporting the individual in a way that promotes regulation, independence, and quality of life.

When it comes to stimming, this means:

● Respecting behaviours that serve an important purpose

● Looking at underlying sensory and emotional needs

● Supporting regulation before placing demands

● Teaching additional skills without removing helpful coping strategies

A compassionate, individualized approach recognizes that behaviour is communication. When we understand what stimming is telling us, we can respond in ways that build trust, reduce stress, and support meaningful progress.

A shift that makes a difference

Stimming is often not the problem—it is a clue. It can tell us when a child is overwhelmed, excited, anxious, focused, or trying to regulate their body. When we shift from asking “How do we stop this?” to “What is this telling us?”, we open the door to more supportive, respectful, and effective strategies.

If you’re unsure how to support your child’s specific sensory needs and you’re looking for a thoughtful, individualized approach to help you better understand what you’re seeing and what steps to take next, our team would be happy to work with you.

At Progressive Steps Training & Consultation (PSTC), we work with families to better

understand behaviour and build practical supports that meet each individual’s unique needs.

To learn more about our services or to book a consultation, please contact our team. We would be happy to talk with you about whether PSTC may be the right fit for your family.

References

Baranek, G. T. (2002). Efficacy of sensory and motor interventions for children with

autism. Journal of Autism and Developmental Disorders.

Kapp, S. K., Steward, R., Crane, L., Elliott, D., Elphick, C., Pellicano, E., & Russell, G.

(2019). “People should be allowed to do what they like”: Autistic adults’ views

on stimming. Autism, 23(7), 1782–1792.

Sarver, D. E., Rapport, M. D., Kofler, M. J., Raiker, J. S., & Friedman, L. M. (2015).

Hyperactivity in ADHD: Impairing deficit or compensatory behavior? Journal of

Attention Disorders, 19(3), 235–246.

Schaaf, R. C., Benevides, T., Kelly, D., & Mailloux-Maggio, Z. (2014). Occupational

therapy and sensory integration for children with autism. Journal of Autism

and Developmental Disorders, 44, 1493–1506.