D

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DELUSION OF OBSERVATION

The belief where a person thinks he is being watched. Also called observation delusion.

DEMENTIA

A generalised deterioration of cognitive functions such as memory and language due to a variety of causes. Should not be

DEMORALIZATION HYPOTHESIS

The idea of overcoming a person's demoralisation by treatment from a psychotherapist.

DENOTATIVE MEANING

The literal meaning of a word or phrase.

DEPAKOTE

Trade name for divalproex sodium.

DEPRESSED SKULL FRACTURE

Skull fracture where particles are pressed into the brain.

DEPTH FROM SHADING

A depth cue gained from light patterns.

DERIVED IDEAS

Ideas that are derived from external sources. See cartesianism- cartesian self.

DESCHOOLING

An informal schooling movement of the 1960's and 1970's that separated school from the institution and promoted learning as a

DESIPRAMINE

Tricyclic antidepressant.

DETACHMENT

1. Feeling of emotional freedom coming from a lack of involvement. 2. Objectivity to consider a problem on its merits.

DETOXIFICATION

A procedure where toxins are removed from the body and medication may be required to eae the withdrawal of toxins

DEVELOPMENTAL LEVELS

The stages of gthe human life span from neonatal to adulthood.

DEVELOPMENTAL TEACHING MODEL

General teaching approach by Jean Piaget where social, cognitive and moral dveleopment advance in distinctive stages.

DEXTROMETHORPHAN

A synthetic opoid use to suppress a cough.

DIAGNOSTIC CENTER

A facility able to evaluate a person's condition.

DIALYSIS DEMENTIA

The disease of the brain that affects people on long term dialysis.

DICHORHINIC

Presenting a different odour to each nostril by an olfactometer.

DIETHYLSTILBESTROL

A synthetic compound that does a similar job to estrogen. Used rarely nowdays due to associated health risks.

DIFFERENTIAL REINFORCEMENT

Reinforcing only a selected behaviour.