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Glossary Item Description
Lesch Nyhan Syndrome

Lesch Nyhan syndrome is a rare, inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HPRT).


Leuprolide is a synthetic hormone sold under various brand names including Eligard, Lupron, Prostap, and Viadur.


Levarterenol (also known as noradrenalin and norepinephrine) is a hormone and neurotransmitter secreted by the adrenal medulla and the nerve endings of the sympathetic nervous system.


Levetiracetam is a type of anticonvulsant, a group of drugs which aim to prevent or reduce the severity of seizures.


Levoamphetamine is a form of amphetamine sold under a variety of brand names such as Adderall and Dexedrine.


Levocarnitine is another term for carnitine, a compound which helps in the consumption and disposal of fat in the body.


Levodopa is a dopamine precursor, which is used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease.


Lexapro is a brand name for escitalopram, a type of SSRI antidepressant used to treat a range of conditions including anxiety and depression.

Lichenoid Drug Eruption

Lichenoid eruptions are uncommon skin rashes that can be induced by many environmental agents, medications or industrial by-products such as inhaled particles

Light Therapies

Light therapies are a group of therapies which use light in one form or another.

Lightwave Stimulation

Lightwave stimulation is an intervention that that involves stimulating the retina with appropriately coloured lights.

Lipoic Acid

Lipoic acid is another name for alpha lipoic acid, an antioxidant that is manufactured in the human body.

List Serv

A list serv is a form of online community used by people on the autism spectrum and others to talk to one another.

Listening Program

The Listening Program is an audio-based therapy, in which an individual listens to musical CDs.

Listening Project Protocol

The Listening Project Protocol is a type of auditory integration training.


Lithium is a type of drug called a mood stabiliser and is sold under a variety of brand names inc. Eskalith CR, Eskalith and Lithobid.


Lithobid is a brand name for lithium, a type of drug called a mood stabiliser.

Lived Experience

Lived experience is personal knowledge about the world gained through direct, first-hand involvement in everyday events.


Lorazepam is a benzodiazepine, a group of drugs used to treat anxiety or anxiety associated with symptoms of depression.

Lovaas Method

The Lovaas method, formally known as the UCLA Young Autism Project model, is a form of early intensive behavioural intervention invented by Dr. I. Lovaas.

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.