(P2) criminological psychology Flashcards
define ‘crime’
crime is an act (or omission of an act) that is against the law.
crime also implies punishment, or at least some treatment to prevent ‘recidivism’
define ‘recidivism’
the tendency for a convicted criminal to re-offend
define ‘anti-social behaviour’
refers to any behaviour that is seen negatively by others in the sense of harrassing them or causing alarm/distress
what is meant by crime as a ‘social construct’?
social and legal processes decide what is and what is not crime in a particular society. some actions may be seen as crimes in some countries but are socially accepted in others. by this means we can refer to crime as a ‘social construct’
define ‘anger’
an emotion and anger management is about controlling that emotion
define ‘aggression’
refers to how someone behaves, such as threatening behaviour or physical assault. aggression is seen as bad in our society because it is uncontrolled, unlike planned behaviour which society praises.
define ‘reactive aggression’
when someone is hostile and wants to hit out at someone perhaps because of perceived injustice
define ‘violence’
when aggression moves to behaviour that causes physical harm and goes against social norms.
give 2 variables associated with crime
age
gender
what is the relationship between ‘age’ and offending behaviour?
The prevalence and incidence of offending (i.e. the number of offences committed) starts to rise in adolescence and peaks around the age of 18, falling sharply thereafter. This relationship is called the age-crime curve. The majority of offenders are in their teenage years but by the age of 28, 85% of them have stopped committing crimes (Farrington, 1986).
However, there are marked differences if different types of crime are accounted for. Property crimes like theft or vandalism follow this pattern closely but fraud and embezzlement are more likely to be committed by older adults (Steffenmeister et al., 1989) principally because opportunities are more plentiful to them.
what is the ‘age-crime curve’?
the rise of crime prevalence and incidence during adolescence, which peaks around the age of 18 and falls sharply after.
what are the two categories of offender (according to moffit, 1993) and why do they occur?
adolescence limited (AL) offenders offenders follow the pattern above: crime peaks during adolescence at the age of 18 and then falls after.
- this occurs due to a ‘maturity gap’ in the person’s biological and social maturity; although many adolescents have reached adulthood biologically, socially they are restricted from many adult behaviours. as a reaction, delinquency occurs as it is learned by peers through social learning process
life-course persistent offenders (LCP) are a smaller group but criminally active throughout their lives. They start to offend at an earlier age following a history of conduct problems in childhood and continue offending into mature adulthood.
- LCP offending, by contrast, is linked to neuropsychological deficits with a range of causes (e.g. genetics, environmental toxins) which, when combined with an adverse developmental environment (e.g. abuse, neglect) result to produce an antisocial personality type with a high propensity to offend at all ages.
what are the gender differences in relation to crime?
the gender-crime gap. The gender-crime gap has been explained in a number of ways.
1. One possibility is that offending patterns reflect constitutional differences between women and men. Males have a higher risk of many types of neurodevelopmental problems which could manifest in an increased tendency to commit crimes.
- It is also widely believed that human males have developed a tendency towards aggression through evolutionary processes, which might explain the preponderance of males amongst violent criminals.
- However, gender differences in offending might also reflect differences in the socialisation of women and men. Box (1983) found that criminality in women correlated with the degree of female subordination and powerlessness in society. Possibly, societies that stress a more ‘traditional’ feminine role restrict the opportunities available to women to become involved in criminal activity.
- Crime statistics from recent years have suggested that the gender disparity in offending is reducing (Lauritsen et al., 2009). It has been suggested that the narrowing of the gender crime gap represents the ‘dark side’ of gender equality as women act on the opportunities for offending previously denied them.
assumptions of biological psychology
that our cognition, emotion and behaviour is linked to the nervous system (TNS)
what influences our cognition, emotion and behaviour?
physical environment
psychosocial environment
genes
these all effect TNS and consequently, our cognition, emotion and behaviour
brain systems involved in aggression (diagram explanation)
(1) OFC (orbitofrontal cortex) exercises inhibitory control, whether you should stop/go
(2) the amygdala takes information from the environment via the senses and inteprets threat/provocation & fear in others.
(3) hypothalamus activates aggressive behaviour
(4) hippocampus stores memory from previous experiences and also contributes to the info the amygdala interpets.
(5) testosterone increases when in competition with others and this is linked to aggressive behaviour.
(AO3) evaluation of the amygdala as an explanation for crime and offending
(S) supportive evidence Raine et al. (1997) found asymmetrical amygdala activity in murderers but not a control group. This suggests that unusual responses to threat or provocation might lead to highly aggressive behaviour. This supports the view that the amygdala is an important influence on crime and ASB.
(W) counter-argument One limitation of the amygdala as an explanation for crime and ASB, is the low generalisability of the evidence. Raine et. Al (1997) investigated the difference in brain activity between murderers and offenders pleading NGRI. This is a problem because it only considers an unusual type of offender (NGRI). This sample is limiting in applying to the wider population of other criminals or offenders, which shows low levels of generalisability.
(W) PFC may be a better explanation of offending A different explanation for crime and ASB is the impact and functioning of the prefrontal cortex. The PFC is responsible for exercising inhibitory control. This means that damage to the prefrontal cortex may cause an increase in crime and ASB because the individual is unable to act appropriately and instead, may act irrationally. Whilst the amygdala can explain some crime and ASB that is mostly violent, it doesn’t explain it all because the PFC also plays a huge role. Impulse control failure would explain a wider variety of crimes not just aggressive offences. This disproves the view that the amygdala is responsible for all crime and ASB.
(W) scanning methods a lot of research (e.g. Raine et. Al) employ scanning as a method for determining the link between the amygdala and offending behaviour. while scanning is an objective, scientific and reliable method; brain scanning methods lack causual certainty. it is difficult to definitively link offending to the amygdala as there may be a wider range of factors in play (e.g. age, gender, childhood- psychosocial factors).
define ‘traumatic brain injury (TBI)’ *long definition for an essay
Traumatic brain injury (TBI) refers to injury to the brain incurred through mechanical force to the head and can occur many ways including sporting injuries, car accidents and physical violence. TBI can be focal, where there is clear damage to a specific brain area, but is more often diffuse, where there is subtler and more widespread brain injury. TBI can have a range of severity from the mild disruption associated with concussion (disorientation but no loss of consciousness) to severe, where there is lengthy loss of consciousness and a significant risk of psychological impairments in the longer term. The effects of TBI are cumulative, so repeated mild TBI can still ‘add up’ to significant injury over a period of time.
define traumatic brain injury (TBI) *short definition
a change to the structure of the brain caused by penetration or physical impact.
define ‘diffuse brain injury’
widespread, small-scale damage to the brain that may not be obvious from a visual inspection or large-scale scan.
define ‘cumulative brain damage’
damage that results from repeated traumatic impacts, each of which only does a small amount of damage.
what is the ‘pre-frontal cortex’?
a set of brain structures involved in sophisticated processes like problem solving, planning and impulse control.
risk factors of TBI
living in a town or city
having a lower socio-economic status
alcohol and drug use
(williams, 2012)
(AO3) evaluating TBI as an explanation for offending / ASB
(S) supporting evidence Schofield et al. (2015) examined the medical and health records of nearly 30,000 individuals. Those who had a TBI early in their lives were significantly more likely to become offenders than those who had never had a TBI. This supports a causal link between TBI and offending, as the TBI occurred before the offending.
(S) research methods are reliable and credible evidence for brain injury explaining criminal and ASB often comes from case studies or brain scanning. this is a strength of the evidence because these are objective and reliable methods of research; therefore, their findings are reliable/credible.
(W) confounding factors/cause-and-effect despite the evidence, it is difficult for studies to pinpoint brain injury alone as a cause for criminal behaviour as there may be other confounding factors. finding cause-and-effect conclusions is difficult when using correlational data.
(W) individual differences in brain injury Diaz 1995 looked at the use of the insanity plea and any relation to TBI. Diaz believes that there are individual differences in brain injury and differences between individuals in behaviour that is affected. this means that it is hard to draw a strong correlation between TBI and offending behaviour as there is a potential for individual differences to skew the findings. this impacts the generalisability.