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Approaches in Psychology: Key terms The Biological Approach: Nervous system: The nervous system is the body's information gatherer, storage centre and control system Hormones: Hormones are chemicals produced in the cells that produce a specific effect in the body. An example is adrenalin, which causes the heart to beat faster. Genes: a length of DNA that codes for a specific characteristic such as eye colour The Psychodynamic Approach: Superego (moralistic): is the conscience or the internal moral judge. It is the basis of all of our moral attitudes (what is right or wrong), conscience and our sense of guilt. Ego (rational): is mostly conscience and deals with external reality by functioning both in the perception of and adaptation to reality ID (sexual and aggressive urges): (fully unconscious) contains the drives and those things repressed by consciousness The Behavioural Approach: Nurture: the sum of the influences modifying the expression of the genetic potentialities of an organism Reinforcement: reinforcers are certain stimuli...

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