Refers to the sense that deals with movement of the body and the limbs.

See PROPRIOCEPTORS.

A MEMORY disorder involving amnesia, due mostly to alcoholism, first observed in the 19th Century by Russian neurologist Sergei Korsakoff.

French for ‘fixed idea’; a persistent OBSESSION that is impervious to contradictory evidence or argument.

Huntington’s disease, chorea, or disorder (HD), is a neurodegenerative genetic disorder that affects muscle coordination and leads to cognitive decline and dementia. It typically becomes noticeable in middle age. HD is the most common genetic cause of abnormal involuntary writhing movements called chorea and is much more common in people of Western European descent than in those from Asia or Africa.

A score obtained from an INTELLIGENCE TEST by dividing the MENTAL AGE obtained on the test by the actual or chronological age and multiplying by 100. i.e. IQ=CA/A x100. An IQ score by itself is meaningless: it does not measure intelligence the way a tape measures height, for instance. It is only a measure of comparison between all the people who have taken that particular test, with the average range of scores being placed arbitrarily around 100.

Accepting external ideas or values as one’s own to the point of not being aware of their origins. The best known example of this concept is the SUPEREGO where the values of the parents and the parent society are internalised into the developing PERSONALITY.

A PERSONALITY characlerislic in which a person manipulates others for his own gain. Named after the political theories of the fifteenth-century Italian statesman and writer.

FORGETTING the memories of earliest CHILDHOOD, explained by PSYCHOANALYSIS as REPRESSION. The non-existence of language with which to ‘fix’ experience in the MEMORY is also suggested as a cause, as is simply the immaturity of the nervous system.

See THRESHOLD.

The use of HYPNOSIS in PSYCHOTHERAPY.