Sensory Integration Therapy: What It Is and What the Evidence Says

Sensory integration therapy, in its proper sense, is a specific way of working developed by the American occupational therapist A. Jean Ayres from the 1960s onwards. Its full name is Ayres Sensory Integration, often shortened to ASI. It is delivered by occupational therapists with extra postgraduate training, usually in a clinic fitted with suspended swings, crash mats and climbing equipment. The therapist uses carefully pitched play to give a child the movement, touch and body-position input they need, so that they can manage a little more than they could before.

The honest answer on evidence is: mixed. A small number of better-quality trials, mostly with autistic children, have found benefits on the individual goals set for each child. But the research overall is limited, and NICE does not recommend sensory integration therapy as a routine treatment for autism. It can help some children. It is not a cure, it is not the only option, and it is usually paid for privately. The rest of this page explains what it involves, how it differs from the sensory strategies you may already be using, and how to tell whether a provider is offering the real thing.

What Ayres Sensory Integration actually is

Ayres was interested in how the brain takes in information from the senses and organises it so that we can move, learn and behave in a way that fits the situation. She paid particular attention to three senses most people never think about: the vestibular sense (balance and movement, from the inner ear), proprioception (knowing where your body is, from muscles and joints) and touch. If you want a plain explanation of these, our guide to the 8 sensory systems covers them one by one.

Her theory was that some children struggle to register or make sense of this information. That can show up as clumsiness, difficulty planning new movements (called praxis), being overwhelmed by noise or touch, constantly seeking movement, or finding it hard to settle and concentrate. ASI aims to improve how the child processes that information, rather than simply working around it.

What a session looks like

To a parent watching, a session often looks like play. That is deliberate. A child might lie on their tummy on a low platform swing, reaching down to grab beanbags and throw them at a target. They might climb a padded ladder, crash into a pile of cushions, or squeeze through a stretchy tunnel. The child has a lot of say in what happens, but the therapist is constantly adjusting the activity so it is hard enough to stretch them without tipping them into distress. Therapists call this the "just right challenge".

Sessions are typically around an hour and happen regularly, often weekly, over a period of months. The exact pattern varies, so ask any provider what they would suggest and why.

Why it usually happens in a clinic

True ASI depends on suspended equipment: swings, hammocks and platforms hung from properly engineered ceiling fixings, with plenty of floor space and thick mats underneath. Most homes cannot offer that safely. If someone tells you they deliver full Ayres Sensory Integration in your front room, it is worth asking exactly what they mean.

How it differs from sensory strategies and a sensory diet

This is where a lot of confusion comes from. The phrase "sensory integration" gets used loosely for almost anything sensory, from fidget toys to ear defenders. Most of that is not ASI.

• Sensory strategies are practical ways to help a child cope now. Ear defenders in a noisy hall, a quiet corner, seamless socks, a movement break before homework.
• A sensory diet is a planned set of activities spread through the day to help a child stay calm and alert. Our guide to building a sensory diet at home explains how one is put together.
• Sensory circuits are short, structured activity routines often run in schools before lessons.
• Ayres Sensory Integration is an intensive, therapist-led intervention in a specially equipped space, aiming to change how the child processes sensation over time.

None of these is automatically better. Many children do well with strategies and a sensory diet alone. The point is to know which one you are being offered, and what you are paying for.

What the evidence says

Where there is some support

A handful of randomised controlled trials, mostly involving autistic children, have found that children receiving ASI made more progress on their own individual goals than children who did not. Those goals were things that mattered to the family, such as getting dressed with less upset, joining in play, or coping with self-care tasks. These studies were relatively small, but they used a clear version of the therapy and measured outcomes that families care about.

The limits

The wider picture is less tidy. Much of the older research is small, uses different definitions of what sensory integration therapy is, and is hard to compare. It is difficult to blind a study when everyone can see a child on a swing. Results on broader outcomes, such as overall behaviour or core features of autism, are not consistent. It is also not clear which children are most likely to benefit. Researchers have stressed that results depend on the therapy being delivered properly, which is why the provider's training matters so much.

What NICE says

NICE's guidance on supporting autistic children and young people does not recommend sensory integration therapy as a routine intervention. It does place weight on understanding a child's sensory sensitivities and adjusting their environment. Guidance is updated from time to time, so check the current version yourself on the NICE website rather than relying on anyone's summary, including this one.

What this means for you

A fair reading is this. ASI is a reasonable thing to try for some children if it is delivered by a properly trained occupational therapist, aimed at clear goals, reviewed after a set period, and affordable for your family. It is not reasonable to pay for it on the promise that it will cure autism, fix ADHD or replace other help your child needs.

Is it right for your child?

Before you look at providers, it helps to be clear about the problem you are trying to solve. Try writing down:

• What actually gets in the way day to day. "Meltdowns" is too broad. "Cannot tolerate having hair washed" or "falls off the chair at school" is something a therapist can work with.
• What you have already tried. Simpler strategies, changes at school, routines. If these have not been tried, they may be the sensible first step.
• Whether other causes have been checked. Hearing, vision, sleep, constipation and pain can all look like sensory problems. Your GP or health visitor is the place to start.
• What you can realistically commit to. Regular sessions, travel to a clinic and practice between sessions all take time and money.

See your GP promptly if your child is losing skills they used to have, such as words or toileting, is not meeting developmental milestones, is losing weight or refusing most foods, or has had episodes that could be seizures. Call 999 if your child has a seizure for the first time, a seizure lasting more than 5 minutes, or seizures one after another, or if they are seriously injured or you are worried about their immediate safety. If you are unsure how urgent something is, call NHS 111.

How to judge a private provider

Start with the basics. Anyone calling themselves an occupational therapist in the UK must be registered with the Health and Care Professions Council. Our guide to checking HCPC registration shows you how to do it in a couple of minutes. Then ask:

1. What training do you have in Ayres Sensory Integration? Full ASI training is postgraduate, usually several university-level modules. A one-day course is not the same thing. Ask whether they have ongoing supervision or mentoring.
2. How will you assess my child first? A proper assessment usually combines standardised tests, observation, questionnaires for you and often school, and a detailed history. Our guide to sensory processing assessments explains what these involve.
3. What goals will we work on? Goals should be specific, about daily life, agreed with you and written down.
4. How will we know if it is working? Ask how progress is measured and when it will be formally reviewed. A good provider will agree a review point after a set number of sessions.
5. Where will sessions happen, and what equipment do you use? If there is no suspended equipment, it is not ASI. It may still be useful, but it should be described honestly.
6. What happens between sessions? Look for advice you can use at home and willingness to share ideas with school.
7. What is the full cost? Ask for the assessment fee, session fee, report cost and likely number of sessions in writing.

Red flags

• Claims to cure or treat autism, ADHD or dyspraxia themselves.
• Large blocks of sessions paid upfront with no review point.
• No written goals or no way of measuring change.
• Discouraging you from speech and language therapy, school support or medical advice.

Cost and access in the UK

Full Ayres Sensory Integration is rarely offered on the NHS. NHS children's occupational therapy services vary by area, but they generally focus on assessment, advice, sensory strategies and support for school rather than long courses of clinic-based ASI. Referral routes also vary: it might be through your GP, health visitor, paediatrician or the school SENCo. Ask locally.

Privately, you are likely to pay for an assessment, a written report and then each session. Because ASI is a course rather than a one-off, the total can add up quickly, and travel to a suitable clinic is an extra cost in time and money. Get a written estimate before you start and agree in advance when you will stop and review.

In England, if your child has an Education, Health and Care Plan, occupational therapy can be written into it as educational provision. Whether a specific approach like ASI is included depends on the evidence for your child's needs, so ask your local authority's SEND team how this works in your area.

Alternatives and what else helps

• Sensory strategies and environmental changes at home and school, often the quickest and cheapest wins.
• A sensory diet built around your child's day.
• Occupational therapy for daily skills such as dressing, handwriting, eating and play, working directly on the task. Our guide to occupational therapy for autistic children covers what this looks like.
• Speech and language therapy, which leads on communication and on eating, drinking and swallowing difficulties.
• Physiotherapy where there are significant problems with muscle tone, strength or walking.
• Psychology or CAMHS where anxiety or mood is a big part of the picture.
• Parent support programmes, sometimes offered through local autism services or national charities.

Where an occupational therapist fits

Occupational therapists are the profession that delivers Ayres Sensory Integration, but most occupational therapists are not ASI trained, and most sensory help children receive is not ASI. That is fine. A lot of what makes a difference happens in ordinary places, not on a swing.

A private occupational therapist visiting at home can watch how your child copes with real routines: getting dressed, mealtimes, bath time, bedtime. They can work out which sensory differences are causing the most trouble, help you set up a sensory diet and practical changes, write a report for school or an EHCP, and give you an honest view on whether clinic-based ASI is worth considering. See our sensory needs page for more on this kind of support.

What a home-visiting occupational therapist cannot do is deliver full ASI with suspended equipment in your living room. An occupational therapist does not diagnose autism or ADHD, which is done by an NHS or private diagnostic team. Speech, language and swallowing sit with speech and language therapy, and medical concerns belong with your GP or paediatrician.

Frequently asked questions

Is sensory integration therapy the same as a sensory diet?

No. A sensory diet is a plan of activities you and school build into the day to help your child stay regulated. Ayres Sensory Integration is an intensive therapy delivered by a specially trained occupational therapist in an equipped clinic. They can work alongside each other.

Is sensory integration therapy available on the NHS?

Full ASI rarely is. NHS children's occupational therapy usually offers assessment, advice and strategies, and what is available varies by area. Ask your GP, health visitor or school SENCo how referral works locally.

How long does sensory integration therapy take?

It is usually a course of regular sessions over several months rather than a quick fix. The right length depends on your child and their goals. Agree a review point at the start so you can decide together whether to continue.

Can sensory integration therapy be done at home?

Not in its full form, because it relies on suspended equipment and space that most homes do not have. Sensory strategies and activities can absolutely be done at home, and a therapist can give you a home programme. Please do not try to recreate clinic swinging or spinning without advice.

Does sensory integration therapy help adults?

Most of the research and practice is with children. Adults with sensory processing differences are more often helped with strategies, environmental changes and adjustments at work or home, sometimes guided by an occupational therapist.

Can it make things worse?

Too much movement or touch can leave a child sick, dizzy, overexcited or upset. A trained therapist watches closely and adjusts. Tell them about any reactions afterwards, such as poor sleep or more meltdowns, so they can change the plan.

Next steps

If you would like help working out what your child's sensory needs are and what is worth trying, see our children's occupational therapy page, or current guide prices, and choose your area below.