Addiction and neural ageing
Addiction and neural ageing

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Saturday, 25 Jun 2022, 00:03
Site: Open Learning
Course: Addiction and neural ageing (SD805_2)
Glossary: Glossary


The DNAprotein complex that makes up chromosomes.


Structures inside the nucleus, made of DNA and protein, that carry the cell’s hereditary information.

chronic illness

A long-standing illness for which there is no known cure. It is not immediately life-threatening but can give rise to unpleasant and painful symptoms.

classical conditioning

A procedure whereby a neutral stimulus (e.g. a bell) is converted into a conditional stimulus by its pairing with an unconditional stimulus (e.g. food). Following classical conditioning, the neutral stimulus acquires a power (e.g. to evoke salivation).

classical contingency

A situation where a neutral stimulus is arranged to occur just before an unconditional stimulus.


A set of three bases in mRNA that corresponds to (i.e. codes for) a particular amino acid.


A non-protein molecule which is closely associated with, or in some cases covalently bound to, an enzyme, and helps catalyse a chemical reaction.


Facts about the world that can be utilised flexibly in behaviour, e.g. food is by the window.


Term describing a process of information storage and retrieval, which can be utilised flexibly in behaviour. In humans, ‘cognitive’ relates to mental operations sometimes termed thought processes, e.g. reasoning, calculation and planning.

cognitive map

A spatial representation in memory. Typically, a cognitive map would be of a particular environment and be used as an aid to navigation there.

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