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crime - what makes a criminal (biological) Flashcards

(10 cards)

1
Q

What does physiological mean?

A
  • nature
    -comes from within
  • genes ( warrior gene) , mesomorph, personality,
  • Brunner
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2
Q

what does non-physiological mean?

A
  • nurture
  • external factors
  • family, friends, environment, drug usage
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3
Q

Name two and outline the background studies for what makes a criminal

A
  • Brunner: looked at MAOA and serotonin levels
    – researched 5 males and they had increased serotonin but lowered warrior gene levels
    – more aggressive
  • Sheldon + Lombroso: mesomorph bodies more aggressive
  • Jahoda: people born on wednesdays much more aggressive
    – over 5 years
    – Wed: 22% prison
    – Mon: 6.9% prison
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4
Q

What was the Aim for Raine?

A

To see if violent offenders who committed murder and pleaded NGRI ( not guilty for reason of insanity) have brain disfunction

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5
Q

what was the research method for Raine

A
  • quasi experiment
  • matched participants
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6
Q

what was the sample for Raine?

A
  • 41 murderes ( 6 with schizopherina)
  • 41 non murderers ( 6 with schizopherina)
  • ## they were off meds for 2 weeks
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7
Q

what was the procedure for Raine?

A
  • participants injected with tracer
  • ppts did a continuous performance task where they had to press a button when they saw something on a screen
  • done in PET scan
  • done for 32 minutes
  • PET scan used box technique and cortical peel technique
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8
Q

What were the findings for Raine?

A
  • no differences in the performance
  • NGRI had more activity in the occipital region
  • activity in corpus callosum decreased
  • activity in prefrontal cortex aslo decrease
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9
Q

what are the possible conclusions for Raine?

A
  • There are different brain functions
  • predisposed to violent behaviour e.g reduced activity in prefrontal cortex could result in loss of self control
  • However we can’t use PET scan to diagnose murderers
  • only studied on one group so can’t generalize
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10
Q

what are the applications for what makes a criminal?

A
  • omega 3 diet
    • raine gave 100 children omega 3 and their aggression reduced
  • Lewinson: plastic surgery
    - facial reconstruction for criminals
    - 75% - 45% ( recidivism rates lowered)
  • chemical castration
    • testosterone blocker so reduced aggression
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