Biological Theories Flashcards
What did the Cambridge Study find?
Out of 397 families, half of the criminal activity was from 23 families
What was Christiansen’s study?
The concordance rates found in twin studies
What did Christiansen find?
The level of genetic similarity was higher in monozygotic twins then in dizygotic twins
What did Medrick et al’s study find?
Sons was more likely to have a criminal record if their parents did (20% concordance) and a smaller population had a criminal record if their adopted families did (14.7%)
What was Jacob’s XXY study?
He studied psychiatric criminals
What did Jacob’s find?
Higher than average proportion were found to have XXY syndrome
What’s XXY syndrome
‘Super male syndrome’ -more aggressive and potentially more violent
What’s our ID?-Fraud
Located in the unconscious
Contains selfish and pleasure seeking needs
Driven by the pleasure principle
What’s the superego-Fraud
Contains our consequence or moral rules
Makes us guilty if we don’t listen
Driven by the morality code
What’s the ego- Fraud
Controls ID’s urges while finding a way to satisfy them
Middle of ID and superego
Driven by the reality principle
What would a weekly developed superego mean?
We would feel less guilty
What would a too harsh or strict superego mean?
Guilty which craves punishment as a release
What’s a deviant superego
Superego wouldn’t induct guilt feelings for contemplating guilty acts
How did Bowlby research maternal deprivation?
He studies 44 juvenile thieves who had been referred to a child guidance clinic
What did Bowlby find?
39% of them had suffered maternal deprivation before the age of 5
