p3 (b) criminal psychology Flashcards
what are biological key assumptions?
-behaviour caused by our biology and way our body works
-mind resides in physical structures of the brain so all thoughts feelings and emotions have physiological cause
what are non physiological explanations for criminals?
Bandura SLT
self fulfilling prophecy
what is Banduras explanation of criminals?
-children around same sex role models who are criminals observe it
-if outcomes good behaviour is vicariously reinforced
-children imitate behaviour in hopes of also gaining a reward
what is the self fulfilling prophecy of what makes a criminal?
-when you are treated like a criminal u become one
-Jahoda: Ashanti culture
.Wednesday- aggressive
Monday- calm
-22% violent crimes committed by wednesday boys and 7% monday
what are physiological explanations for criminals?
-Lombroso ‘criminal evolution’
-Sheldon ‘the criminal body’
what is the Lombroso theory of criminals?
-Charles Darwin theory of evolution
-humans evolved to possess criminal features
-criminals subspecies of human
-narrow sloping brow
large ears
defined jawline
abnormalities
what is Sheldon’s explanation of what makes a criminal?
-ectomorphs, endomorphs, mesomorphs
-mesomorphs criminal (most inmates)
-those with muscular build can achieve anything (rewards) with force
-muscular build creates prejudice cant escape stigma
-historically wc due to diet and labour
what is the aim for Raine?
Study brain activities in murderers and non-murderers using PET
Find out if differences in areas thought to be involved in violence
what was the experimental sample for Raine?
41 murderers
39 men, two women
Mean age 34.3
NGRI
what was the control sample for Raine?
matched sex age
Six schizophrenic
what was the design Raine?
Quasi experiment
Matched pairs
what was the procedure Raine?
practice CPT
Began CPT session
30 seconds later injected with glucose tracer
CPT lasted 32 minutes
10 horizontal slices at 10 mm intervals
Brain scan using PET
what two techniques were used to identify brain regions?Raine
cortical peel technique ( lateral areas)
Box technique (middle area)
what regions did the cortical peel technique identify?Raine
superior frontal gyri
Middle frontal gyri
Inferior frontal gyri
what regions did the box technique identify? Raine
Orbital gyrus
Superior frontal gyrus
i what were the asymmetrical results?Raine
Abnormal asymmetrical activation in amygdala 0.88
Hippocampus
Thalamus
higher in right
what regions were lower in murderers?Raine
lateral prefrontal cortex1.09
medial prefrontal cortex
what were conclusions for?Raine
Aries with abnormal activity associated with aggressive behaviours
-Amygdala lack of fear
-Prefrontal cortex lowered self-control
-Issues expressing emotions