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Glossary Item Description

Yeast is a microscopic, one-celled organism belonging to the group of organisms called fungi

Yeast-Free Diet

The yeast-free diet is a type of exclusion diet which requires you to avoid all sources of yeast.

Yi-Gan San

Yi-gan san is another term for yokukansan, a traditional Asian herbal medicine.

Yoga Therapy

Yoga is a mind-body practice in complementary and alternative medicine (CAM) with origins in ancient Indian philosophy.

Yoked Prisms

Yoked prisms, another term for ambient prism lenses, are used to help improve ambient vision, the visual system related to spatial organisation.


Yokukansan, also known as yi-gan san, is a traditional Asian herbal medicine.

Ysgol-y-Gogarth Model

The Ysgol-y-Gogarth Model is based on the educational programme provided by the Ysgol-y-Gogarth, an autism-specific school in Llandudno, Wales.

Z Therapy

Z therapy is a form of attachment therapy, an extremely controversial group of therapies designed to help children with attachment disorders.


Zabel is a brand name of terbinafine hydrochloride, a type of antifungal medication used to treat athlete's foot, fungal nail infections and fungal skin infections.


Zaponex is a brand name for clozapine, a type of atypical antipsychotic.


Zarontin is a brand name for ethosuximide, a type of anticonvulsant.


Zeldox is a brand name for ziprasidone, a type of antipsychotic drug.


Zeolite is a food supplement which comes from a volcanic mineral called clinoptilolite, which is sometimes used as a chelating agent or to boost the immune system.


Zinc is a trace element found widely in the environment, including in many foodstuffs.


Ziprasidone is a type of atypical antipsychotic drug, which is sometimes used to treat problem behaviours in people on the autism spectrum.


Zispin is a brand name for mirtazapine, a type of SSRI antidepressant used to treat the symptoms of moderate to severe depression.


Zolafren is a brand name for olanzapine, a type of typical antipsychotic drug.


Zoloft is a brand name for sertraline, a type of SSRI antidepressant.

Zone Therapy

Zone therapy is another name for reflexology, the practice of stimulating points on the feet, hands and ears.


Zyprexa is a brand name for olanzapine, an atypical antipsychotic drug.

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.