Substance Use Disorders

Question 1

Brain on drugs

Answer 1

All abuses drugs increase catecholamines which activates the nucleus accumbens which leads to reinforcement

Question 2

Mesolimbic pathway

Answer 2

Reward pathway. Release of dopamine in the nucleus accumbens

Intoxication

Question 3

Insular cortex

Answer 3

Interoception, awareness of own body.

Craving

Question 4

Basal ganglia

Answer 4

Automaticity ; Habits