Biological Approach

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  • Biological Approach
    • Assumptions
      • A person's central nervous system (CNS) has a strong influence on behaviour
      • Genetic makeup of individual's influence's behaviour
      • Chemical's in the body will influence behaviour
      • Central Nervous System
        • The structure of the brain and the spinal cord influence a person's behaviour
        • The CNS allows communication between the environment and brain by passing messages throughout the body
    • The biological approach assumes that human behaviour is caused by biological factors such as genes and physical structures
    • The role of genetics
      • The genetic makeup of an individual have an influence on behaviour .
      • Biological psychologists believe that the genes a person has from the moment they are born have a strong influence of what kind of person they will become
      • Genotype and phenotype
        • Genotype is the genetic material that a person has (Useless you have an identical twin, your genotype is unique to you
        • Phenotype is the way genes have been expressed in behaviour or physical appearance of an individual
    • The role of Neurotransmitters
      • They carry chemical messages from one neuron to another across the synapse  and they can influence behaviour for example a decrease in serotonin can cause depression
    • The role of evolution
      • Genetic materials is passed on through the generation of species when the resulting behaviour is aiding for survival or reproduction.
    • It's highly scientific as it has been tested on brain scanning techniques
    • It does not take into account of the enviroment-it looks purley at nature but ignores nurture

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