inherited criminality

Question 1

Osborne and west

Answer 1

compared sons of criminal and non criminal fathers. 13% of non criminal had convictions compared to 40%
not significant numbers, learned or inherited

Question 2

Christiansen

Answer 2

access to data on 3500 twin pairs, Demark. MZ - 35% DZ - 13%

Question 3

Han Brunner et al

Answer 3

analysed DNA of 28 members of dutch family with history of violent crimes. had gene that led to abnormally low levels of MAOA. only one family with similar environment - cant generalise. only targets violent crime. deterministic

Question 4

Raine

Answer 4

cited 71 brain imagining studies. showed that murderers, psychopaths and violent individuals have reduced activity in prefrontal cortex. reduced activity here associated with impulsiveness and loss of control

Question 5

Crowe

Answer 5

adoption study. when bio mum had criminal record, child had 38% chance of having one by 18 compared to 6%.
may be other predispositions being inherited e,g, alcoholism. maternal stress during pregnancy can lead to abnormalities in foetus that affect behaviour.

Question 6

Hollin

Answer 6

discussed number of possibilities. abnormalities in CNS (leads to poor cognitive functioning, regulating behaviour). Abnormalities in ANS or abnormalities in endocrine system

Question 7

Harmon

Answer 7

8.5% of US population has brain injury compared to 60% in prisons. brain differences may be due to nurture not nature

Question 8

Caspi

Answer 8

Used data from longitudinal study of 1000 people followed from birth. Assessed antisocial behaviour at 26. 12% of those men with low MAOA had experienced maltreatment but were responsible for 44% of violent convictions. Evidence of diathesis-stress model and epigenetics