Genetci And Neural Explanations

Question 1

Why was these explanations made ?

Answer 1

-Early biological explanations from criminality have been largely discredited (atavistic)

-criminal behaviour seems to be inherited

-neaural diffencednces between criminals and non criminals

• genetic abnormalities cause structural and functional differences in the brain

Question 2

What is genetic explanation

Answer 2

Offenders inherit gene or combination of genes that makes them commit crime

Question 3

Explain twin studies of genes

Answer 3

Christiansen —> investigated 3500 Tewin pairs in Denmark
-found concordance rate for 35 % of identical ans 13% for non identical

Question 4

What did the twin study suggest?

Answer 4

Behaviour is inherited

Question 5

Explain adoption studies

Answer 5

Crow said adopted children who’s biological mother had a criminal record
-had 50% chance of criminal record by 18
-adult without criminal mother had only 5% risk

Question 6

What was the genetic explanation in regards to candidate genes?

Answer 6

Tiihonen had invertsigates 800 offenders in Finland

-concluded two specific candidate genes associated with violent crimes

-maoa: regulates serotonin and dopamine

Ddh13: linked to substance abuse and adhd

5% of all violent crime has both genotypes of these genes

Question 7

what is an example of gnetic explanation when reaktig ot diathesis stress model?

Answer 7

genest could eb mdoeratef from environment

-scizophrenia–> biiological trigger could bring conditon

-offendeing behaviour could be triggerd by combination of gene vunerability and crimnal role models