Addiction and neural ageing
Addiction and neural ageing

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.


Glossary for SD805_2
Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

Page:  1  2  (Next)



(social) Describes some aspect of an individual’s condition such that it becomes a way of defining that individual’s relationship with the rest of the world.


The asymmetrical distribution of function between the two hemispheres of the brain, e.g. localisation of language in the left hemisphere.


A mixture containing opium, which was widely available in Britain in the Victorian period.

law of effect

The law that states that behaviour is strengthened by its consequences.


The process by which a memory of experience is acquired that will modify behaviour.

learning curve

A graph showing an index of learning as a function of the number of trials over time.

level of explanation

A term applied to explanations for a certain phenomenon which are derived from a coherent body of concepts, hypotheses and knowledge associated with a particular academic discipline or subdiscipline; the term signifies the existence and value of other levels of explanation of the same phenomenon.

life expectancy

The average number of years a person can expect to live from birth.


The length of life of the longest-lived member of a species.

light receptors

Cells located at the retina of the eye and specialised for the detection of light.

Page:  1  2  (Next)

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371