Approaches & Interventions

This section catalogues the major approaches to supporting sensory processing in autistic people, assessed honestly: what it claims, what the evidence shows, what the criticisms are.

Clinical interventions

Ayres Sensory Integration — the most researched sensory intervention. Recent evidence (2025) is positive when delivered with fidelity. Clinic-based, occupational therapy, ages 4–12.

Snoezelen and multi-sensory environments — invented in the Netherlands for people with intellectual disabilities. Strongest evidence when the person controls the equipment. The control principle matters.

Sensory diets — scheduled sensory activities throughout the day. Widely adopted, weakly evidenced. The gap between practice and research is one of the largest in the field.

Interoception curriculum — Kelly Mahler’s framework for teaching internal body awareness. The most evidence-based self-regulation approach for autistic people and the most aligned with neurodiversity-affirming practice.

Self-regulation frameworks

Zones of Regulation — the most widely used framework in schools. Does not meet evidence-based practice standards. Carries a real risk of promoting masking. Assessed critically.

The Alert Program — “How Does Your Engine Run?” Better grounded in sensory systems than Zones, with more concrete language.

Polyvagal theory and the Safe and Sound Protocol — popular among therapists, scientifically contested. The theory’s foundational claims are disputed; the clinical application has limited evidence; the framing pathologises autism. Assessed in detail.

The evidence landscape

The evidence problem in sensory interventions — why the evidence base is weaker than most people think, and why the nature of sensory processing makes conventional research difficult.

GFCF diets and biomedical claims — the most widely adopted biomedical intervention for autism. The evidence does not support it. This page explains why, and why people try it anyway.

Sensory products and fidget tools — what they are, what the evidence shows for each type, and how to evaluate products critically.