Aggression- Biological

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  • Biological Explanation of Aggression
    • MEN MORE AGGRESSIVE DUE TO TESTOSTERONE
      • EVIDENCE: VIOLENT CRIMINALS HAD HIGHER TES. LEVELS THAN NON VIOLENT CRIMINAL
    • RESEARCH SUGGEST BOYS WITH XYY CHROMOSOME = MORE AGGRESSIVE
      • ES GIBT A HIGHER THAN NORM PROPORTION OF XYY MALES AMONGST VIOLENT OFFENDERS
    • AGGRESSION=LINKED TO LIMBIC SYSTEM
      • LIMBIC SYSTEM= PART OF CENTRAL NERVOUS SYSTEM IN BRAIN
        • AMYGDALA IS A PART OF THE SYSTEM
      • SYSTEM INFLUENCES eating & sexual behaviour and AGGRESSION
        • http://daniellepsychology.blogspot.co.uk/p/aggression.html
      • BRAIN DISEASE CAN AFFECT SYSTEM& CAN LEAD TO ABNORMAL AGGRESSION LEVELS
        • PSYCHO- SURGERY TO AMYGDALA-SUCCESS IN REDUCING VIOLENT BEHAVIOUR
    • EVALUATION
      • YOUNG'S STUDY SUPPORTS
        • HE FOUND OFFSPRING OF MONKEYS INJECTED W/ TEST.= MORE AGGRESSIVE- HIGH LEVELS INCREASE AGGRESSION
      • IGNORES CHILDHOOD EXPERIENCES- TOO SIMPLE (REDUCTIONIST)
      • AGG. MAY RUN IN FAMILIES THROUGH LEARNING
    • REDUCING AGGRESSION
      • DRUGS
        • e.g. ritalin STIMULATE ACTIVITY IN PREFONTAL CORTEX,
          • REDUCE AGGRESIVE BEHAVIOUR CAUSED BY CONDITONS LIKR ADHD
        • SHORT TERM SOLUTION=PROBLEM NOT DEALT WITH
        • EASY TO PRODUCE= WIDELY AVAILABLE & IS EFFECTIVE- QUICKER THAN COUNSELLING
        • PERSON CAN BECOME ADDICTED/ DEPENDENT/ OVERDOSE
      • PSYCHO-SURGERY
        • REMOVE/ DESTORY PART OF BRAIN THAT ISN'T WORKING PROPERLY.
          • DONE BY HEATING & INSERTING PROBE TO PRECISE LOCATION WITH END HEATED TO KILL NERVES
            • THIS HAS REDUCED AGGRESSIVE BEHAVIOUR IN PEOPLE
        • IT IS A PERMANENT SOLUTION
        • PERSON CAN DIE IN SURGERY
        • UNETHICAL- PATIENT MAY BE IN WRONG STATE OF MIND

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