DIGIT SPAN

An attention test to see how many numbers a person is able to remember. There is a forward and backward assessment. Forward measures immediate...

DEPRESSION

1. A dysphoria that can cary from mild to severe mood changes. 2. Psychiatry. A dpressive disorder.

DIZYGOTIC TWINS (DZ TWINS)

Twins that have developed from two separate and eggs fertilised by separate sperm. Also called fraternal twins.See twin studies.

DEOXYCORTICOSTERONE

A potent corticoid hormone that is the precursor corticosterone.

DELAYED REACTION

An experimental technique for determining whether an animal or young child can remember the solution to a problem after a lapse of time. The...

DESOXYN

Trade name for methamphetamine.

DISTAL STIMULUS

The object that acts or stimulates a sense organ. Also called distal variable. Compare proximal stimulus.

DEVIANT BEHAVIOR

Any behaviour that deviates from the group. Also called deviance.

DUAL-ASPECT PHYSICALISM

The solution theoretically about the mind and body problem claiming ther are 2 aspects of reality.

DIFFERENTIATION

1. Sensory discrimination. 2. process of conditioning where desired behaviour is achieved by selective reinforcemnet. 3. Embyology where cells change to become a specialised...

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