Early Start Denver Model (ESDM) delivered to children aged 18–30 months produced significant gains in IQ, adaptive behaviour, and autism severity — some children no longer met diagnostic criteria at follow-up
Direct answer
Notice what input, setting, and response are involved, then use that pattern to discuss accommodations or an occupational-therapy assessment. This guide covers sensory profiles, funding, costs, and Ontario resources.
World Health Organization autism fact sheet · College of Occupational Therapists of Ontario · Verified 2026-08-10
In brief
Quick summary
- Sensory differences may affect daily activities in different ways
- OAP Core Clinical Services funding covers OT for sensory processing when autism is primary diagnosis
- Ask an occupational therapist about assessment scope, availability, and fees
- All Ontario OTs must be registered with COTO, verify before booking
General information only, not a diagnosis, treatment plan, crisis service, or individual estimate. Confirm your next step with the linked source or a qualified professional.
Medical Disclaimer
This page provides general information about autism and related therapies for educational purposes only. It is not medical advice. Every child is unique—consult qualified healthcare professionals (pediatricians, developmental pediatricians, BCBAs) to determine appropriate interventions for your child's specific needs.
Sensory Processing & Autism: What the Research Shows
- Sensory profile
- A clinician can discuss sensory experiences and possible supports.
- 8 Senses
- sensory systems can be affected: visual, auditory, tactile, vestibular, proprioceptive, interoceptive, olfactory, and gustatory. Source: World Health Organization autism fact sheet; verified 2026-08-10.
- $6,600–$65,000/year
- OAP Core Clinical Services range, OT for sensory processing is a fundable service when autism is the primary diagnosis. Source: MCCSS OAP progress reports; verified 2026-08-10.
Three Types of Sensory Responses
Autistic individuals may experience one or more of these response patterns across different sensory systems. A registered OT can assess the full profile.
Hyper-sensitivity
Over-responsive to sensory input. Ordinary stimuli feel overwhelming or painful.
- - Distressed by loud sounds or sudden noises
- - Avoids certain textures in clothing or food
- - Bothered by bright lighting or flickering screens
- - Strong reactions to smells others barely notice
Hypo-sensitivity
Under-responsive to sensory input. May not register input that neurotypical people notice easily.
- - High pain threshold; may not react to injuries
- - Unaware of body temperature or hunger cues
- - May not notice name being called
- - Difficulty feeling when muscles are fatigued
Sensory Seeking
Craves intense sensory input to achieve regulation and alertness.
- - Seeks out spinning, jumping, crashing into things
- - Mouths or chews non-food objects
- - Prefers very loud music or intense tactile pressure
- - Constantly touching surfaces, people, or objects
The Eight Sensory Systems Explained
Sensory systems and examples — horizontally scrollable table.
| Sensory System | What It Processes | Common Autistic Differences | Source |
|---|---|---|---|
| Auditory | Sound and volume | Distress at loud spaces; hyperfocus on certain sounds | WHO autism fact sheet; verified 2026-08-10 |
| Visual | Light, colour, movement | Sensitivity to fluorescent lights; preference for dim or dim-lit spaces | WHO autism fact sheet; verified 2026-08-10 |
| Tactile | Touch, pressure, texture, temperature | Avoidance of clothing tags; distress with light touch | WHO autism fact sheet; verified 2026-08-10 |
| Vestibular | Balance and movement in space | Fear of heights or moving equipment; or craving spinning | WHO autism fact sheet; verified 2026-08-10 |
| Proprioceptive | Body position and muscle force | Difficulty with spatial awareness; preference for deep pressure | WHO autism fact sheet; verified 2026-08-10 |
| Interoceptive | Internal body signals (hunger, pain, heartbeat) | Poor hunger/thirst cues; difficulty identifying emotions | WHO autism fact sheet; verified 2026-08-10 |
| Olfactory | Smell | Overwhelmed by perfumes or food smells; avoids kitchens | WHO autism fact sheet; verified 2026-08-10 |
| Gustatory | Taste and oral input | Extreme food selectivity; preference for specific textures only | WHO autism fact sheet; verified 2026-08-10 |
OT Assessment in Ontario: Costs and Access
- Public (OAP / School Board) Route
Cost to family — $0 (OAP funded)
Wait Time — Ask the provider
Eligibility — Active OAP Core Clinical Services funding
OAP-funded OT requires the child to have an autism diagnosis registered with AccessOAP. School boards may also provide OT consultations for IEP development at no cost.
- Private OT Route
Per Session — Ask the provider
Full Sensory Profile — Ask the provider
Wait Time — Ask the provider
Private OT is tax-deductible as a medical expense and may be covered by extended health benefits. Families with OAP Core Clinical Services funding can use funds for private OT, no OHIP coverage for private OT.
Program details and OAP range: MCCSS OAP progress reports; verified 2026-08-10. Confirm route details with the provider.
OAP Funding for Sensory OT
What OAP Covers for Sensory Processing
- Sensory integration therapy sessions with a COTO-registered OT
- Sensory diet development and caregiver training
- Environmental modification consultation for home and school
- Fine motor, self-care, and daily living skills (ADL) OT
- OT consultation for school IEP sensory accommodation planning
What OAP Does NOT Cover
- -Sensory equipment purchases (weighted blankets, swing sets), not a direct service
- -OT services when autism is not the primary diagnosis
- -Gym memberships or sensory classes not provided by a registered OT
Pro Tip: Documenting Sensory Needs for OAP
When completing the OAP Determination of Need assessment, ask the assessing clinician to document the impact of sensory differences on daily functioning, dressing, eating, school participation, and community access. Detailed sensory documentation supports higher Core Clinical Services funding tiers ($6,600–$65,000/year) by demonstrating how sensory differences affect multiple life domains.
Source: MCCSS OAP progress reports; verified 2026-08-10.
Sensory Diets and School Accommodations
What Is a Sensory Diet?
A sensory diet is a tailored daily schedule of sensory activities prescribed by a registered OT to help regulate the nervous system. It is not about food , the term "diet" refers to the type and frequency of sensory input a person needs.
- Proprioceptive input: heavy work activities, weighted vests, wall push-ups
- Vestibular input: swinging, rocking chairs, balance boards
- Tactile input: fidget tools, weighted blankets, playdough
- Auditory input: noise-cancelling headphones, white noise machines
Ontario School Accommodations for Sensory Needs
Under the Ontario Human Rights Code and Education Act, schools must accommodate sensory needs in the IEP. Common accommodations include:
- Scheduled sensory breaks throughout the day
- Quiet workspace or access to a sensory room
- Noise-cancelling headphones approved for classwork
- Alternative seating (wobble chair, standing desk, floor seating)
- Modified lighting (reduced overhead fluorescents)
Request these accommodations via the Special Education Plan and document them in the IEP under "Environmental Accommodations."
Finding a Sensory OT in Ontario by Region
Toronto (GTA)
Holland Bloorview, SickKids, private OT clinics
Ottawa
CHEO OT program, private clinics
Hamilton
McMaster Children's Hospital OT
London
Children's Hospital LHSC, private OT
Mississauga
Trillium Health, private clinics
All Regions
Full provincial OT directory
All Ontario occupational therapists must be registered with the College of Occupational Therapists of Ontario (COTO). Verify your provider's registration before booking. For sensory integration therapy, look for OTs with SI Certification or SIPT (Sensory Integration and Praxis Tests) training.
Frequently Asked Questions: Autism and Sensory Processing in Ontario
Sensory differences can affect how autistic people experience sound, light, touch, movement, smell, taste, and internal body signals. A qualified clinician can discuss assessment and support options.
Sensory Processing Disorder (SPD) and autism are distinct conditions that frequently co-occur. SPD is not a standalone diagnosis in the DSM-5, but sensory differences are embedded within the autism diagnostic criteria. Autistic individuals may have sensory profiles that include hyper-sensitivity, hypo-sensitivity, or sensory seeking. A clinical psychologist or occupational therapist can assess a full sensory profile during or after an autism diagnosis.
Yes. OAP Core Clinical Services ($6,600–$65,000/year) can fund occupational therapy when autism is the primary diagnosis. Source: MCCSS OAP progress reports; verified 2026-08-10. OT targeting sensory processing difficulties, sensory integration therapy, and sensory diet development are all covered when clinically indicated. Ensure the OT documents sensory-related goals tied to autism in the service plan submitted to AccessOAP.
Assessment scope and fees vary by provider. Contact an occupational therapist to ask what an assessment includes, what it costs, and whether any funding or insurance may apply.
A sensory diet is a personalized schedule of sensory activities designed to keep a child's nervous system regulated throughout the day. Developed by a registered occupational therapist, it includes activities like proprioceptive input (heavy work, weighted blankets), vestibular activities (swinging, rocking), and tactile experiences. In Ontario, sensory diet development is billable under OAP funding when prescribed by a COTO-registered OT as part of an autism service plan.
All occupational therapists in Ontario must be registered with the College of Occupational Therapists of Ontario (COTO) at coto.org. Search for OTs with additional training in sensory integration (e.g., Sensory Integration and Praxis Tests certification, SI Certification). The OAP provider directory at autismontario.com also lists OT providers who accept OAP funding.
Under the Ontario Education Act and Ontario Human Rights Code, schools must provide reasonable accommodations for students with sensory needs. Common accommodations include: sensory breaks, quiet workspaces, noise-cancelling headphones, alternative seating (wobble chairs, standing desks), modified lighting, and access to a sensory room. Parents can request these through the child's Individualized Education Plan (IEP), sensory needs should be documented as part of the profile section.
Yes. Ontario has a growing network of sensory-friendly resources: Cineplex operates "Sensory-Friendly" movie screenings in Toronto, Ottawa, and other cities. The Ontario Science Centre, ROM, and many libraries offer sensory-friendly hours. Autism Ontario maintains a directory of sensory-friendly businesses and events at autismontario.com. Some Ontario malls (e.g., Sherway Gardens, Rideau Centre) run early sensory-friendly shopping hours.
Next Steps for Your Family
Whether your child is newly diagnosed or you are seeking better sensory support, Ontario has resources available. Start with an OT assessment, then access OAP funding to make it sustainable.
Your child's health
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.
- Ministry of Children, Community and Social Services: Spending Plan Review (2024). Financial Accountability Office of Ontario (2024)
- MCCSS Ontario Autism Program figures, May 13, 2026, obtained by the Ontario Autism Coalition under Freedom of Information. Ministry of Children, Community and Social Services (Ontario), obtained by the Ontario Autism Coalition (May 13, 2026)
Related guides
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Sources on this page
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Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.
Facts5
Sources4
Cochrane systematic review finds evidence that early intensive behavioural intervention (EIBI) may produce positive effects on adaptive behaviour and communication for young children with ASD (low certainty of evidence)
WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement
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
91,974
children are registered in the Ontario Autism Program
Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.
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