forensic psychology Flashcards
canter et al 2004
analysis of 100 US murders each commited by different serial killers. smallest space analysis used, identifies different samples of behaviour. assessed co-occurence of 39 aspects, subset of features matched organised offenders. validity top down
Godwin 2002
difficult to classify killers as organised or disorganised, more of a continuum.
meketa 2017
top-down applied to burglary, 85% rise in solved cases in 3 US states, adds interpersonal (stealing something of significance) and opportunistic (inexperienced young offender). wider application.
canter and larkin 1993
Canter’s circle theory, centre of gravity, marauders and commuters.
Canter and Heritage 1990
analysis 66 sexual assault cases, data examined smallest space analysis, common behaviours, interpersonal language and lack of reaction to victim. case linkage to same offender
investigative psychology
Lundrigan and canter 2001
collated info from 120 murder cases, involving serial killers in the US, smallest space analysis, spatial consistency of behaviours, location created centre of gravity, identified offender.
geographical profiling.
Ainsworth 2001
other factors are just as important in creating a profile, such as the timing og the offence and the age and experience of the offender
geographical information insufficient
Lombroso 1876
criminals were genetic throwbacks, atavistic form.
examined skulls of 380 dead and 3800 living convicts, 40% criminal acts commited by people with atavsitic features.
Goring 1913
comparison 3000 offenders 3000 non offenders, no evidence that offenders are a distinct group with unusual characteristics. challenges atavistic theory.
Christiansen 1977
studied over 3500 twin pairs in Denmark, concordance rates offender behaviour 35% MZ 13% DZ. genetic
Crowe 1972
adopted children whose biological mother had a criminal record had 50% risk of having criminal record by 18, adopted children without criminal bio mother only 5% risk.
Mednick et al 1984
13000 danish adoptees, neither bio or adoptive parents had convictions, adoptees were 13%, rose to 20% when either had convictions, 24.5% when both.
support for genetic inheritance plays important role in offending, environmental influence clearly also important.
Tiihonen et al 2015
two genes, MAOA and CDH13, associated with violent crime.
MAOA regulates serotonin, linked to aggression
CDH13 linked to substance abuse and ADHD, 5-10% all violent crime attributable to genes in Finland .
Keysers 2011
found that only when offenders were asked to empathise did their empathy reaction activate (mirror neurons), APD not without empathy, neural switch.
Raine
dozen brain-imaging studies demonstrating APD have reduced activity in the prefrontal cortex, regulates emotional behaviour.
raine et al 2000
11% reduction in volume of grey matter in prefrontal cortex of people with APD.
Kandel and Freed 1989
reviewe evidence of frontal lobe damage (prefrontal cortex) and antisocial behaviour. Impulsive behaviour, emotional instability and inability to learn from their mistakes. FL plannning behaviour. brain damage cause offending in bv
Farrington et al 2006
group of men who scored high on APD, various risk factors in childhood, raised by neglected parent and being physically neglected, caused APD and neural differences.
relationship between APD and offending is complex, other intervening variables.
Eyesenck 1947
proposed behaviour could be represented along 2 dimensions, introversion-extroversion (E) and neuroticism-stability (N). later added third, psychoticism-stability (P).
developed EPQ
Eyesenck and Eyesenck 1977
compared 2070 prisoners’ scores on the EPQ with 2400 controls, prisoners had higher averages on E N P. offenders rte higher on each dimension.