One of the three points on a FREQUENCY DISTRIBUTION which divide it into equal quarters.

The visualILLUSION that a straight line passing behind two parallel lines or rectangles is not actually straight.

A form of PSYCHOTHERAPY, invented and developed by SIGMUND FREUD. Places a great emphasis on the uncovering and understanding of UNCONSCIOUS MOTIVATION. Any form of psychoanalysis, no matter how far removed it may be from its Freudian origins, would subscribe to this principle. Psychoanalysis is the most arduous and demanding form of psychotherapy, requiring years of (expensive) sessions during which powerful conflicts and EMOTIONS may be raised.

A form of EXTRASENSORY PERCEPTION in which a subject appears to have knowledge of COGNITION or a future event which could not be inferred logically.

In PSYCHOANALYSIS, something that is not present in CONSCIOUSNESS at a given moment but which can readily be recalled. Compare with SUBCONSCIOUS.

From the Greek words psyche (mind) and soma (body); relating to psychological disorders in which emotional STRESS produces physiological symptoms. Illnesses such as asthma and stomach ulcers are widely believed to be psychosomatic, but it has also been argued that because of the close connection between MIND and body, every illness is psychosomatic at least to some extent.

Mainly used to describe recurrent criminal BEHAVIOUR but also used of repeated psychological disturbance.

An ATTITUDE, opinion or belief with a strong emotional underpinning that makes it largely impervious to reason or evidence to the contrary. The term is usually (though not always) used in a negative sense.

The process of passing through different bodily forms in the course of an organism’sdevelopment. as in a frog or butterfly.

A physician who specialises in PSYCHIATRY.