Criminal Behaviour Flashcards
Definition of crime
Any act of violence that violates the law as determined by the state
Who identified characteristics for 5 top shelf crimes, what are they ?
Griffith
Sex offenders
- Individuals who engage in sexual contact with young children or adolescence
- Individuals who like inflicting pain or humiliation in others
Murderers type 1 (disorganised,asocial offender)
- Generally has a below average IQ
- Don’t date and live alone
- Low birth order
Murderers type 2 (organised, non social offender)
- Generally have above average IQ
- Tend to live with partner
- High birth order
Acquisitive criminals (fraud,burglary,extortion)
- Generally seek criminal activity for pleasure and thrill
- Some will take either an intelligence or economical reason behind crime
Terrorists
- Sometimes motivated politically or economically triggered issues of day
- Potential psychological defect that produces this errant behaviours or perception
Who made Categories of crime, what are they?
Farr and Gibbons
- Property predatory crimes (attempting to or taking personal property of others without permission, burglary, theft)
- Property Fraudulent crime (deceit or manipulation with purpose of converting property or services of others to their own use, embezzlement, bribery)
- Interpersonal violence general (actions that threat or cause actual harm, murder, assault)
- Interpersonal violence sexual (actions that threaten or cause actual personal harm with sexual element (rape, incest)
- Transactional vice (persons involved in victimless offence, willing exchange of goods or services (prostitution, drug sales)
- Order disruption (involved in actions where no direct victim but concern raised about potential victims (disordered conduct, riots)
- Folk mundane crime ( broad category where persons involved in actions that range from minor violations like fishing without license to serious violations load regulations)
Inherited Criminality (BIOLOGICAL 1)
- The genetic argument proposes that one or more genes predispose individuals to criminal behaviour. Evidence for this comes from twin studies where identical MZ and non identical DZ twins are compared; higher concordance rate in MZ than DZ is evidence for genetic bases of criminality. Raine reviewed research on delinquent twins, found concordance rate of 52% in MZ compared to 21% in DZ.
- Two genes particularly linked to criminal behaviour are Monoamine oxidase and Cadherin 13. MAOA regulates the metabolism of serotonin in the brain and low levels of serotonin associated with impulsive and aggressive behaviour. 1980s study of 28 male members of a Dutch family found that many of these male members behaved in a violent and aggressive way. These men found to have abnormally low levels of MAOA in their bodies and a defect on this gene (warrior gene) later identified by Bruner et Al. Finnish study by Tiihonen et al with 900 offenders found low MAOA activity and from CDH13 gene.
- Adrian Raine cited 71 brain imaging studies showing murderers, psychopaths, violent individuals have reduced functioning in prefrontal cortex, area of brain responsible for regulating emotion and controlling behaviour. Lowered activity in this area associated with impulsiveness and a loss of control
- Researchers (Seo et Al ) suggest that low levels of serotonin may predispose individuals to impulsive aggression and criminal behaviour, partly due to neurotransmitter normally inhibiting the prefrontal cortex. Raised dopamine may enhance this effect. Very low and high levels of noradrenaline have been associated with aggression, violence and criminality.
- Current thinking proposes an interplay where genes are switched on or off according to environmental factors, a diatheses stress. One possibility is maltreatment as a child, Capsi et Al conducted a 500 male children study and discovered a variant of the gene associated with high levels of MAOA and low levels of MAOA. Those with low levels were significantly more likely to grow up to be antisocial only if maltreated as a child. Those with high levels of MAOA who were maltreated and those with low levels who were not maltreated did not display antisocial behaviour.
Strength of Inherited Criminality
- In addition to twin studies, adoption studies are able to supply further empirical support to explanation. A study over 14,000 adoptions in Denmark found that a significant number of adopted boys with criminal convictions had biological parents (Mainly fathers) with criminal convictions. Rhee and Waldmans meta analysis of twin and adoption studies MZ twins were more similar in antisocial behaviour than DZ twins. Such research validates and makes genetic explanation of criminal behaviour harder to argue against
Weaknesses of Inherited criminality
- Highly deterministic, believers of genetic approach to criminality would suggest individuals enter into criminal life because behaviour is controlled by internal factors beyond their control. They don’t believe individuals have ability to choose how to behave and exercise their free will. However humans are capable of high level processing so individual can choose how to behave. Tiihonen et Al found those with defective gene 13 times more likely to have violent history, however shows that not all those with the gene become criminals.
- Limitation is that there is a lack of validity in studies that consider genetic factors in criminality as usually involve highly biased samples. Therefore cannot assume that these findings can be generalised to the overall population. Male only samples cannot represent females, ignoring half the population. Furthermore, males in question also highly unusual as they have been convicted of violent crime so difficult to draw conclusions. Also violent attacks are very few compared to general violence so only represent a small minority. May mean that genetic explanation of criminal behaviour not actually able to account for criminal activity in large groups of population.
- Most of genetic and neural research on criminal behaviour relates to the association between violence and criminal behaviour. At best, biological explanations only account for certain types of crime like violent or psychopathic. Evidence that those traits is inherited like Blonigen et al, found evidence to suggest psychopathic trait is inherited in over 600 male and female twins. However Findlay suggest crime is not a natural category, rather a social construction, includes many types of crime like theft, fraud drugs that are non violent that are not accounted for. This make it difficult to argue that all criminality can be explained in terms of one’s genes and interaction with environment.
Biological method of modifying
- Genetic research completed via twin studies and gene mapping have identified two genes particularly implicated in violent criminal behaviour . Those are the MAOA and Cadherin 13 gene.
- People who inherit such genes have an increased risk of criminal behaviour
- Modern research attempts to restructure an individual’s genetic composition so that undesirable traits caused by defective genes can be eradicated
- For example, it might be possible to replace a defective warrior gene with a normal one in a fertilised ovum. Families at increased risk could be identified for genetic engineering
- However, such research is in its infancy and some people view this as highly unethical due to suggesting that it involves playing God.
Role of Amygdala (BIOLOGICAL 2)
- The amygdala was first linked to criminal behaviour by Papez and Maclean. It is highly connected, neutrally linked to the hypothalamus, hippocampus and prefrontal cortex. Therefore it has widespread influence in brain functioning and behaviours associated with emotion, motivation, social interaction in humans and NHA. Plays major role in how we assess and respond to threats, hence its relevance in determining aggressive behaviour
- Coccaro et Al investigated effects of amygdala on aggression by studying people with intermittent explosive disorder (IED), common symptoms are outbursts of anger and aggression. Each ppt had fmri scan of brain while viewing images of angry faces. Key difference between pps showed as those with IED showed high levels of amygdala activity when viewing angry faces. This finding demonstrates an association between amygdala activity and processing of aggressive emotions. Study had high realism as angry facial expression is everyday signal of danger and threat.
- Gao et Al points out as children we learn to inhibit aggressive and antisocial behaviours through fear conditioning, we learn aggressive behaviour leads to punishment. As a result, dysfunction in amygdala would mean child not able to identify social cues that indicate threat like angry faces, therefore doesn’t link punishment to aggressive behaviour. Fear conditioning interrupted and outcome is that individual with amygdala dysfunction seems fearless, antisocial, overly aggressive.
- This was demonstrated through a longitudinal study where 1795 pps were tested for fear conditioning at the age of 3. Measure used was physical arousal (indicated by sweating) in response to painful noise. Twenty years later, researchers found those who had committed crimes at age 23 had shown no fear conditioning when they were 3 years old, effectively fearless. This suggests a causal relationship between amygdala dysfunction and criminal behaviour
Strength of Role of Amydala
Empirical evidence which is difficult to argue against. Gospic et Al used the ultimatum game, a lab based method of measuring aggressive behaviour. Involves two players, proposer and responder. Proposer offers to split money in a fair or unfair way (unfair should be perceived as threat). If responder accepts, money is split accordingly. If responder refuses the offer, both get nothing. Rejection of offer interpreted as aggressive behaviour. The study’s pps played the role of responder and results from an fmri scan suggested when responders rejected unfair offers, amygdala activity heightened. Therefore strong evidence shows an association between reactive aggression and increased amygdala activity, supports proposal of amygdala implications in criminal behaviour.
Weakness of Role of amygdala
Important to recognise that amygdala is part of wider system of connected brain structures and does not operate on its own to determine aggressive criminal behaviour. Functions with orbital frontal cortex located in prefrontal cortex which is thought to influence self control, regulate impulsive behaviour and inhibit aggression. Raine et Al investigated murderers who had used overwhelming aggression in their crimes. These had higher glucose metabolism in their amygdala, but abnormally low metabolism in prefrontal cortex.
Eysenck criminal personality (INDIVIDUAL 1)
- Eysencks theory of personality is based upon the idea that character traits such as moodiness and talkativeness tend to cluster along three dimensions and these have a genetic basis. An individuals adult personality is therefore a mix of biological tendencies combined with learning experiences. An individuals personality traits can explain why some people commit crimes
- The first dimension is extraversion; this trait describes differences between people in their social interactions, positive emotions and impulsivity. Highly extroverted people are generally outgoing, energetic positive
- Next is neuroticism, it is a long term tendency to be in a negative or anxious emotional state. People with neuroticism tend to have more depressed moods, and suffer from feelings of guilt, anger, anxiety.
- Finally, psychoticism is a dimension characterised by aggression, impulsiveness, aloofness and antisocial behaviour, indicating a susceptibility to psychopathic disorders.
- Eysenck also suggested that each trait has a biological basis which is mainly innate, he claimed 67% of variance is due to genetic factors.
- Extroverts tend to be bored easily and crave excitement. They are more likely to thrill seek and take risks due to Eysencks suggestion that they inherit an under aroused nervous system and so seek stimulation to restore optimum stimulation
- A person with neuroticism level is based on the reactivity of their sympathetic nervous system. A stable persons nervous system will generally be less reactive to stressful situations however neurotics tend to overreact and be quick to worry, be over emotional.
- A psychotic individual would lack empathy and be more aggressive and troublesome. The higher the testosterone, the higher the level of psychoticism, with low levels related to normal people.
- The link between personality and criminal behaviour can be linked in terms of arousal. Extroverts seek more arousal so enter into dangerous activities resulting in criminal activity such as robbery for pleasure. Neurotics are unstable and therefore prone to overreact to situations of threat, which could explain criminal activity. Psychotics can be easily linked to criminality as they are aggressive and lack empathy, examples of crime include rape, murder.
- Eysenck also believed an individual is born with a personality but interaction with environment is essential in onset of criminality. In a normal person, wrong-doing avoided because of previous punishment through operant conditioning. However Eysenck claimed people with high extraversion and neuroticism were less easily conditioned therefore learnt not to avoid antisocial behaviour.
Strengths of Eysencks Personality
- Additional support for a link between one’s personality and criminal behaviour. Research conducted has compared the personalities of criminals and non criminals. Dunlop et Al found both extraversion and psychoticism were both good predictors of delinquency. However, delinquency was assessment of minor offences. Contradicting dunlops results is a study by coleta van dam et Al that found only a small group of male offenders had scores on all three of Eysencks variables. This suggests there is conflicting evidence as to whether personality and criminal behaviour link to each other.
- Further supportive evidence has strengthened Eysencks personality has biological basis. Zuckerman found via twin studies a +0.52 correlation in MZ twins for neuroticism compared with +0.24 for DZ. Extraversion was +0.51 for MZ and +0.12 for DZ. However can’t conclude whether half of variation is due to genes, could also be product of shared environment. Implies that other factors are important in determining personality as one’s biology.
Weaknesses of Eysencks personality
- Theory based on personal it has to adopt stance personality is fixed. However, it’s suggested some people may be consistent in similar situations but not across other. Some may be consistently relaxed at home but neurotic at work. Mischel supported theory with research where they found 63 students had no correlation with traits displayed in different environments. Therefore notion of criminal personality flawed as it’s too simplistic.
- Additionally, score or label give to any person depends on the answers they provide to a personality questionnaire, they are asked to select what traits apply to them, their responses may not reflect reality. Pps may favour socially desirable answer to come across as acceptable in eyes of researcher. Therefore personality scores unlikely to enable identification of criminals as its bit strong predictor .
Individual differences method of modifying
- It appears that those who fail to develop a sophisticated sense of moral understanding are at increased risk of criminal behaviour, due to focus on their own needs or lack of concern for others.
- Therefore, if we increase people’s capacity to perform at higher level of morality, we should also reduce crime as a result
- Kohlberg believe this would be possible through biological maturation and life experience
- Kohlberg observed that those raised with Israeli kibbutz were more morally advanced than those not (special community when adult members are equal to biological parents)
- Kohlberg helped set up a number of cluster schools in schools and prisons, the aim was to encourage each person to have a sense of commitment and responsibility for organisation, reducing chance of criminality
Moral development (INDIVIDUAL 2)
- Kohlberg developed a theory of moral reasoning through interviewing boys and men about reasons for their moral decisions using Heinz dilemmas. As a result, Kohlberg developed a stage theory of moral development, each stage represented an advanced level of moral understanding
- According to Kohlberg there are 3 levels of moral reasoning and each level can be further sub-divided into two stages. People progress through these stages as a result of their biological maturation and through their experiences which allow them to develop their thinking.
- In a longitudinal study, Kohlberg found that 10% of adults reach the post conventional level which means the most common level of moral understanding is the conventional level. Adults at this stage who break the law would feel their behaviour was justified because it helps them to maintain relationships e.g. break law to protect family or others.
- Most criminals are most likely to be at the pre conventional level as they believe breaking the law is justified if rewards outweigh the costs and punishment can be avoided. Stage 2 is where individuals view actions as right if they satisfy their own needs. May cause someone to act selfish and burgle someone’s house if they believe they will escape.
- This fits with the age of criminal responsibility as in England and wales, children under 10 cannot be charged with a crime because it’s believed they don’t have concept of moral responsibility, thought to be at pre conventional level. In Kohlberg study, just under 20% of children at age 10 were at stage 1, 60% at stage 2