Addiction and neural ageing
Addiction and neural ageing

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Wednesday, 25 May 2022, 06:14
Site: Open Learning
Course: Addiction and neural ageing (SD805_2)
Glossary: Glossary

cognitive psychology

A branch of psychology that is concerned with intelligence and thought processes. It tries to understand the complexity of the relationship between an individual’s thought and action.


A generation of people (or animals) all born during the same period of time.

cohort effects

Those aspects of a person’s biography that are common to the particular cohort or group to which they belong.


An enzyme that breaks down the protein collagen.


A substance made up of two or more types of atom.

compression of morbidity thesis

This claims that disease and decay have largely been eliminated until the very last few years of the lifespan.

concentration gradient

A gradient that exists when there is a difference in concentration of a particular substance, which results in the net movement of the substance from the region of high concentration to the one of lower concentration.


The extent to which halves of a twin pair correlate in some quality, e.g. height or IQ.

conditional/conditioned stimulus (CS)

A stimulus that owes its behavioural capacity to its association with an unconditional stimulus. For example, a CS (bell) might evoke salivation as a result of its earlier pairing with food.

conditional reflex

The reflex that links a conditional stimulus and a conditional response, e.g. the neurons that link the sound of a bell (after conditioning) with the production of saliva.

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