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Glossary Item Description
Infantile Psychosis

Infantile psychosis is another term for autistic disorder, which is a form of autism. It is also known as autism, childhood autism, early infantile autism, infantile autism, or Kanner's syndrome.

Inflammatory Bowel Disorder

Inflammatory bowel disorder is a chronic inflammatory disease that may occur in any part of the gut.

Infrared Sauna Therapy

Infrared sauna therapy or sauna therapy is a treatment which uses infrared radiation to increase circulation and nourish damaged tissue.


InnoPran is a brand name for propranolol, a type of drug called a β-adrenergic antagonist (beta blocker).


Insomnia is a persistent difficulty with sleep initiation, maintenance, duration, consolidation, or quality.

Integrated Movement Therapy

Integrated movement therapy is an individual and group therapy approach that combines speech-language pathology, behavioural and mental health counselling, and yoga.

Integrated Play Groups model

The Integrated Play Groups model is a comprehensive intervention designed to address the unique challenges children on the autism spectrum experience in symbolic play and social engagement with peers.

Integrative Medicine

Integrative medicine is the use of conventional and complementary medicine alongside one another.

Intellectual Disability

Intellectual disability is another term for learning disability, a permanent condition, arising during childhood or adolescence.


Intelligence is sometimes described as the capacity to acquire and apply knowledge (although there are numerous other definitions).

Intelligence Quotient

An intelligence quotient or IQ is a score derived from one of several different standardized tests attempting to measure intelligence.

Intensive Behavioural Intervention

Intensive behavioural intervention is a highly structured and intense intervention in which a child is taught a range of skills by a team of therapists.

Interactive Metronome

The interactive metronome is an intervention in which the individual synchronizes a range of hand and foot exercises to a computer-generated tone heard through headphones.

International Classification of Functioning, Disability and Health

The International Classification of Functioning, Disability and Health, known more commonly as ICF, is a classification of health and health related domains.

International Statistical Classification of Diseases and Related Health Problems

The International Statistical Classification of Diseases and Related Health Problems is a manual which provides codes to classify diseases and disorders.

Internet Communities

Internet communities is another name for online communities (such as listservs, chatrooms, forums and websites) used by people on the autism spectrum and others to talk to one another.

Internship Model of Employment

The internship model of employment is a form of employment in which an intern, usually a student or a recent graduate, undertakes supervised practical training.

Interpersonal Problem-Solving for Workplace Adaptation Programme

The Interpersonal Problem-Solving for Workplace Adaptation Programme is a vocational intervention, designed to help employees solve practical workplace problems.

Interpersonal Therapy

Interpersonal therapy looks at the way a condition can be triggered by events involving relationships with others, such as bereavements, disputes or relocation.


An intervention is any action (such as a treatment, a therapy or the provision of a service) which is designed to help people on the autism spectrum.

About This Glossary

This glossary is designed to explain some of the jargon and gobbledygook used by some people when they talk about autism or research..

You may be able to find more information, including links to other parts of this website, by clicking on the title of an item.

If you can't find the word you are looking for, or you know of a word we should include, please email info@researchautism.net


The fact that an intervention is listed in this glossary does not necessarily mean that we agree with its use. Nor does it necessarily mean that there is any scientifically valid or reliable evidence behind it.