Biological Relationship Formation

  • Created by: Mbegum
  • Created on: 29-12-18 10:56
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  • Biological Relationship Formation
    • Evolutionary Theory
      • indiv w/ certain traits
        • enhance reproduction + naturally selected
          • Different selective pressures
            • Males
              • look for fertility + physically attractive
            • Females
              • look for fertility + provide resources
                • for offspring survival
      • Trivers
        • Parental investment theory
          • female mammals invest more in offspring
            • more choosier when picking partner
              • Females = have limited number of eggs
    • Neurotransmitters
      • Dopamine
        • associated w/ pleasure seeking behav
          • goal to find partner
            • hit of dopamine
              • therefore humans driven to form rela
                • gives natural high
      • Oxytocin
        • linked w/ increasing trust + loyalty
          • high levels in romantic attachment
            • lack of physical contact w/ partner
              • reduces levels of oxytocin
                • longing to bond again
                  • therefore natural chemical drive to bond w/ others
    • Sibling relationship
      • kin selection
        • traits = enhance survival of similar genes
          • natural incentive to look after siblings

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