Sensory integration therapy (SIT) is an occupational therapy-based approach developed by A. Jean Ayres addressing sensory processing differences common in 69-95% of autistic individuals (Marco et al., 2011). Treatment involves structured sensory activities in a specialized gym environment to improve adaptive responses. SIT is covered under OAP core clinical funding when delivered by an OAP-approved occupational therapist as part of the individualized therapy plan.
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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 swings, weighted vests, tactile surfaces, and balance boards. The OT provides structured sensory input to help the child's nervous system organize and respond adaptively to sensory information.
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 sensory-motor goals and daily functioning for autistic children. However, the overall evidence base is smaller than for ABA, and results are strongest when SIT is part of a comprehensive therapy program.
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 swings, weighted vests, tactile surfaces, and balance boards. The OT provides structured sensory input to help the child's nervous system organize and respond adaptively to sensory information.
Sensory processing differences affect an estimated 69-95% of autistic individuals (Marco et al., 2011). These may include hypersensitivity (over-reactivity to sound, touch, light) or hyposensitivity (seeking intense sensory input). Sensory challenges can significantly impact daily functioning, behaviour, and participation in school and community activities.
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 sensory-motor goals and daily functioning for autistic children. However, the overall evidence base is smaller than for ABA, and results are strongest when SIT is part of a comprehensive therapy program.
Under the OAP, occupational therapy including sensory integration approaches is covered through core clinical childhood budgets when delivered by an OAP-approved OT. Private OT sessions typically cost $100-150/hour in Ontario. Some families combine OAP-funded OT with home sensory diet strategies recommended by their therapist.
Research
Marco et al. (2011), "Sensory Processing in Autism," Pediatric Research, 69(5), 48R-54R
Research
Schaaf et al. (2018), "An Intervention for Sensory Difficulties in Children with Autism," JADD, 48(5), 1376-1388
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Commitment to Accuracy: Our data is verified against official government reports (FAO, MCCSS), peer-reviewed scientific literature, and accessible public records. Last updated: March 24, 2026.
Verified Facts
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
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
88,175, children are registered in the Ontario Autism Program
23.4%, Only 20,666 children have active funding agreements () — less than one in four