DIN COLOR SYSTEM
European system for colour by the attributes of hue, luminosity and saturation.
DIRECTIONAL CONFUSION
A difficulty in choosing left from right and other directions such as uptown and downtown.
DISCONTINUITY HYPOTHESIS
Gestalt psychology.Where the viewpoint emphasises the role of our sudden insight when solving a problem.
DISCRETE VARIABLE
A random variable that is not continuous and has a small number of values.
DISCRIMINATIVE STIMULUS
Operant conditioning. A stimulus that increases the probablity of a response.
DISHONEST SIGNAL
A signal in animal communication that gives a misleading infromation about size, iontention and quality of an individual. See deception.
DISORDERS OF THE SLEEP-WAKE CYCLE SCHEDULE
One of the 4 types of sleep disorders. Often shown by shift workers that upsets the circadian rhythm.
DISPLAY DESIGN
Ergonomics. The design of a display for the effective transmission of information about goods and services. See display control compatability.
DISSOCIATIVE GROUP
A group you don't want to be associated with. Compare aspirational group.
DISTANCE ZONE
Social psychology. The interpersonal distance we leave between ourselves and other people. See intimate sone- personal distance zone- public distance…
DISTRIBUTION
Relationship between values a variable may take and the relative number of cases with each value.
DIVALPROEX SODIUM
An anticonvulsive drug used to stabilise mania and prophylaxis in bipolar disorder.
DOMAIN-SPECIFIC ABILITY
A cognitive ability specific to doing task. Compare domain general ability.
DOMINANT TRAIT
A trait manifest in genetics such as one eye colour over another. See dominant allele.
DOPAMINE-RECEPTOR AGONISTS
Drugs that bind to and activate the doapmine receptors. Also called dopaminergic agents. Compare dopamine receptor antagonists.
DORSOMEDIAL NUCLEUS
The mass of tissue that projects from the thalamus to the frontal lobes.