Sensory Integration Therapy for Autism
Direct answer
Sensory integration therapy (SIT) is an occupational therapy-based approach developed by A. Jean Ayres addressing sensory processing differences reported in over 96% of autistic children (Marco et al., 2011). Treatment involves structured sensory activities in a specialized gym environment to improve adaptive responses. OAP core clinical funding can pay for occupational therapy, including sensory-based approaches, when it is delivered or supervised by an occupational therapist registered with the College of Occupational Therapists of Ontario and is part of your child's treatment plan.
The numbers behind the answer
- Sensory Differences
- Over 96% of autistic children
- Marco et al., 2011
- OAP OT Coverage
- Yes, core clinical
- MCCSS
About This Article
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What Is Sensory Integration Therapy?
Sensory integration therapy was developed by occupational therapist A. Jean Ayres in the 1970s to address sensory processing difficulties. Treatment takes place in a specialized sensory gym with equipment such as suspended swings, mats, large balls, and climbing walls. The OT provides structured sensory input to help the child's nervous system organize and respond adaptively to sensory information.
Over 96% of autistic children have sensory over- or under-sensitivity in more than one area (Marco et al., 2011). These may include hypersensitivity (over-reactivity to sound, touch, light) or hyposensitivity (seeking intense sensory input).
Evidence and OAP Coverage
The evidence for Ayres Sensory Integration (ASI) therapy is growing. A systematic review by Schaaf et al. (2018) found that ASI-based OT interventions showed improvements in individualized goals for daily functioning and participation, and less caregiver help with self-care, for autistic children.
Under the OAP, occupational therapy, including sensory-based approaches, can be paid for with a core clinical funding allocation when it is delivered or supervised by an OT registered with the College of Occupational Therapists of Ontario. Some families combine OAP-funded OT with home sensory diet strategies recommended by their therapist.
Why Timing Matters
A wait spans childhood.
Early support can help autistic children develop skills. Age six is not a clinical cutoff, and support can be beneficial at any age. Illustrative arithmetic only: registration at age three plus a five-year wait reaches age eight. Age six is a reference marker, not a clinical cutoff. This is not a prediction of funding, service access or developmental outcomes.
Example: an illustrative child's journey through the Ontario Autism Program
An assumed five-year wait from registration at age 3 reaches age 8. This is an example, not a typical or predicted service date.
| Measure | Age range |
|---|---|
| Illustrative age reference | Birth to age 6 |
| Example wait using the OAC-reported minimum (registered age 3) | Age 3 to age 8 (5 years) |
| Age at the end of this illustrative wait | Past age 6 |
Toddler treatment study
Dawson et al. (2010) randomly assigned 48 autistic toddlers aged 18–30 months to the Early Start Denver Model (ESDM) or community intervention for two years. The ESDM group had greater improvements in cognitive and adaptive outcomes. This study compared treatments for toddlers; it did not compare intervention before versus after age six or establish a universal multiplier for gains.
Support across ages
NIH notes that treatment can help at any age. Support should reflect the person’s needs; a wait does not determine an individual child’s future outcomes.
Ontario does not publish an age-at-registration breakdown for registrations without an active Core Funding Agreement. This example does not describe the age distribution of that group.
SourceDawson et al. (2010) · NIH: autism and support across ages. The illustrative wait uses the community report: 5+ years for families registered in August 2021 (community-reported, Ontario Autism Coalition, July 2026). This is not a provincial average.
Frequently asked questions
Yes. OAP core clinical funding covers occupational therapy, including sensory integration approaches, when delivered or supervised by an occupational therapist registered with the College of Occupational Therapists of Ontario as part of the child's treatment plan.
Fees for private occupational therapy (including sensory integration) vary by provider, so ask for the fee in writing before you start. Check whether your insurance plan covers OT, and ask about coverage limits.
Signs include extreme reactions to textures, sounds, or lights; constant seeking of movement or pressure; difficulty with transitions or new environments; and challenges with motor planning or coordination. An occupational therapy assessment can identify specific sensory processing differences.
Sources
Research
Marco et al. (2011), "Sensory Processing in Autism," Pediatric Research, 69(5), 48R-54R
Research
Schaaf et al. (2018), "Efficacy of Occupational Therapy Using Ayres Sensory Integration: A Systematic Review," American Journal of Occupational Therapy, 72(1), 7201190010
Next steps
Keep going with related guidance, tools, and evidence.
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