Psychological Explanations - Biological Explanations

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Psychological Explanations - Biological explanations

Causes

  • Mosomorph
  • Survival of the fittest
  • MAOA gene
  • Cadherin 13
  • Neurotransmitters: Serotonin, Dopamine and Norepinephrine
  • Low income
  • Parental criminality
  • Large family
  • Poor child rearing techniques
  • Abnormal functioning of hippocampus
  • Head Trauma
  • Pregnancy complications
  • Birth complications
  • Hormones
  • Abnormalities of the amygdala

Effects

  • Cadherin 13 - linked to impulse control
  • Lower levels of serotonin can lead to a condition called 'intermittent explosive disorder' (characterised by sudden explosive outbursts of rage often resulting in violence)
  • Phineas Gage
  • Pregnancy complaints - Minor physical anomalies
  • Pregnancy complaints - Foetal neural maldevelopment in the last three months
  • Pregnancy complications - Nictoine exposure
  • Birth complications - Anoxia, forceps delivery and pre-eclampsia
  • Birth complications coupled with negative home environment
  • Birth complications coupled with material rejection
  • Hormones - High levels of testosterone have been linked to antisocial aggressive behaviour
  • Hormones - Premenstrual syndrome (unsupported by research)
  • Head Trauma - Damage to the prefrontal cortex
  • Abnormalities of the amygdala -  Poor fear conditioning

Overall summary

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