The three STATISTICS which can be used as a central value to describe a group of numbers, the MEAN, the MEDIAN and the MODE.

In social science, a term used to denote the effects on an individual or group of being excluded from the mainstream of a society.

See DOWN’S SYNDROME.

A term sometimes used in SOCIAL PSYCHOLOGY to denote everyday reality as opposed to that of experimental realisim.

The sense of smell.

A mid-nineieenth-century legal ruling that is still widely used in deciding whether a criminal defendant is insane and therefore not responsible for his actions. The ruling states that a person is criminally liable unless his reason was so defective that he did not realise the nature of his action or that it was wrong.

A functional psychological disorder with no organic causes whose origins in emotional conflict can often be understood and dealt with by PSYCHOTHERAPY. Neurosis may be manifested as ANXIETY. FUGUE. HYSTERIA. OBSESSION. COMPULSION Or PHOBIA, neurotic BEHAVIOUR suggestive of NEUROSIS.

A vague term used for many centuries in many different ways. As used today by psychologists it most often refers to the totality of organised, mainly cognitive psychological processes.

Relating to something as a whole (e.g. swimming) rather than to its constituent parts (moving head, arms and legs in certain ways). Contrast with MOLECULAR.

A technique developed in the 1970s by Tony Buzan to aid MEMORY, thinking and creativity. It involves a pictorial form of note-taking. radiating out from a central theme and making use of shape and colour.