DIZYGOTIC TWINS (DZ TWINS)
Twins that have developed from two separate and eggs fertilised by separate sperm. Also called fraternal twins.See twin studies.
DOPAMINE (DA)
Dopamine is a neurotransmitter with a vital role in several functions of the brain: sleep, mood, motivation, behavior, reward, cognition,…
DOUBLE STANDARD
A hypocritical belief where one behaviour is admissible in one group but not in the other.
DOWNWARD SOCIAL COMPARISON
A method of self-protection where we compare ourselves with people are less well off.
DRIVE DISCRIMINATION
An organisms ability to differentiate between varous needs and to direct responses accordingly.
DRUG INTERACTIONS
The effects of giving 2 or more drugs at the same time that may alter the action of one or…
DUAL PROCESS THEORY
1. A theory that response to stimuli allows control of behaviour in 2 stages. 2. Memoery theory. Operation of 2…
DUNNETT'S MULTIPLE COMPARISON TEST
A method of multiple comparison used to compare all groups with a single control group.
DYADIC EFFECT
The behaviour shown by 2 interacting people that is different to interactions to other people.
DYSCONTROL
The impaired ability to regulate function in volition, emotion, behaviour or other area that leads to abnormal behaviours.
DYSSOMNIA NOT
A sleep disorder due to excessive noise, light environmental factors and sleep deprivation.
DECEREBRATE RIGIDITY
A rigidity of the body that occurs when the brainstem is separated functionally from the cerebral cortex. Also called decerebrate…