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Glossary Item Description

CAST is an acronym for the Childhood Autism Spectrum Test (formerly called the Childhood Asperger Syndrome Test), a screening tool designed to identify children who may be on the autism spectrum.


Casting is a procedure which involves wearing a cast to stretch out the tendon.


Catapres is a brand name for clonidine, a type of drug called an alpha 2-adrenergic receptor agonist or anti-hypertensive.


Catatonia is a complex disorder covering a range of abnormalities of posture, movement, speech and behaviour associated with over- as well as under-activity.


CBM is an acronym for cognitive behavioural modification, also known as cognitive behavioural therapy.


CDD is an acronym for Childhood Disintegrative Disorder, an extremely rare form of autism.


Cefixime is an antibiotic drug sold under a variety of brand names including Suprax.


Celexa is a brand name for citalopram, a type of SSRI antidepressant.

Cell or Cellular Therapy

Cell therapy (also known as cellular therapy or stem cell therapy) includes a variety of procedures in which processed tissue from animal embryos, foetuses or organs, is injected or swallowed.

Cell Salts

Cell salts are a form of homeopathy in which tiny amounts of minerals, usually in the form of tablets, are taken to relieve various symptoms.


Cellulase is an enzyme sometimes used as an antifungal treatment.

Center for Autism and Related Disorders Program

The Center for Autism and Related Disorders Program is a comprehensive, multi-component intervention run by the Center for Autism and Related Disorders in Woodland Hills, California.

Central Coherence

Central coherence is loosely described as the ability to understand context or to 'see the big picture'.


The cerebellum is the part of the brain that plays an important role in the integration of sensory perception and motor control.

Cerebral Lipidosis

Cerebral lipidosis is any of a group of inherited diseases characterized by progressive spastic paralysis, blindness, convulsions and learning disabilities.

Cerebral Sphingolipidosis

Cerebral sphingolipidosis is another term for cerebral lipidosis, any of a group of inherited diseases characterized by progressive spastic paralysis, blindness, convulsions and learning disabilities.

CF Diet

The CF diet is another term for casein-free diet, which is based around elimination or reduction of casein, a protein found in dairy products such as milk, butter and yogurt.


CGAS is an acronym for Children's Global Assessment Scale, a numeric scale (1 through 100) used to rate the general functioning of children under the age of 18.


Chaining is a behavioural technique, which involves the linking of component behaviours into a more complex, composite behaviour.

Challenging / Disruptive Behaviour

Challenging behaviours are any behaviours which are likely to cause significant harm to the individual or to his or her carers.

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.