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Addiction and neural ageing
Addiction and neural ageing

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Glossary for SD805_2
Browse the glossary using this index

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Reduction in the intensity of pain.


A means of specifically relieving pain, e.g. injection of morphine, as distinct from an anaesthetic, which reduces all sensations.

animal model

The study of a particular non-human animal in such a way as to reveal general properties, e.g. about how a human might function.

anorexia nervosa

The relentless pursuit of thinness through self-starvation, even as far as death.


A substance that occupies the nerve synapse receptor sites and blocks the natural transmitter’s receptor occupation and so inhibits its action.

anterograde amnesia

An inability to remember new information for any length of time.


The three-base sequence in a tRNA molecule that is complementary to a particular threebase sequence (the codon) in an mRNA molecule.


A molecule that opposes oxidation reactions brought about by free radicals, hence the name antioxidant. The term is often applied to substances that can trap free radicals; for example, vitamin E is an antioxidant.


That which produces, or increases, anxiety.


Tending to reduce anxiety.

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