Neurotransmitters

Question 1

Introduction 1 (neurotransmitters)

Answer 1

• neurotransmitters are chemical messengers
• vital role in mood regulation

Question 2

introduction 2
(offending behaviours)

Answer 2

• action which break legal or moral codes
• influenced by environmental or biological factors

Question 3

Seratonin

Answer 3

• low levels associated with aggression and offending
• violence

Question 4

Virkkunen 1994

Answer 4

• found violent offenders had lower seratonin levels than non-violent offender
• (5HIAA)
• Biological deficitis make people prone to violence

Question 5

Virkkunen 1994 findings

Answer 5

• while correlation is strong it doesnt confirm causation
• low seratonin could be caused by lack of sleep etc.
• need for more models

Question 6

Dopamine

Answer 6

• involved in reward processing prosessing and motivation
• high levels linked to risk-taking

Question 7

Seo et al 2008

Answer 7

• neurobiological model
• reduced seratonin, increased dopamine
• creating agression environment

Question 8

Seo et al 2008 findings

Answer 8

• interaction showed no single chemical explains criminality alone

Question 9

Norepinephrine (Ne)
Haller et al 1998

Answer 9

• how NE influences aggression

Question 10

NE findings

Answer 10

• slight and strong activation of central system stimulates/ decreases fight readiness
• NE contributes to aggression

Question 11

conclusion

Answer 11

• neurotransmitters have a bioloical evidence on offending behaviour
• need to be conisidered in broader framework