BIOLOGICAL APPROACH

Created by: lola india
Created on: 25-08-22 15:23

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BIOLOGICAL APPROACH
- humans are just complex organisms
  - all thoughts, feelings, and behaviour have a physical basis
    - everything physical was first biological
  - incorporates evoloutionary theories into explaining characteristics
- GENETICS
  - heredity
    - all our characteristics (psychological and physical) can be passes through generations via genes
  - the more a trait is influenced by genes the greater the heritability
    - heredity
      - all our characteristics (psychological and physical) can be passes through generations via genes
  - biological approach compares concordance rates between twins
    - similarities in characteristic
  - genotype
    - a persons actual genetic makeup
  - phenotype
    - how a persons genes are expressed
- EVOLUTION
  - bio approach emphasises the importance of evolution
    - looks at how natural and sexual selection leads to adaptions of physical and physiological characteristics and behaviours demonstrated today
- THE BRAIN AND NEUROCHEMISTRY
  - biological approach looks at the structure of the brain
  - includes neurotransmitters such as dopamine and serotonin
    - a shortage or excess of these can effect mood and behaviour
  - hormones
    - chemicals signaled by the brain and lead to physiological changes and can effect behaviour
- EVALUATION
  - positive
    - clear and reliable predictions which has led to practical applications of treatments e.g. depression
    - high scientific credibility due to methods used
      - easily replicated
        high in accuracy
        
        high in validity
  - negative
    - reductionist and deterministic
      - ignores social and cognitive causes for behaviour
        people are held responsible for their behaviour as they 'have no control'

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BIOLOGICAL APPROACH

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