Nicotine Addiction

Question 1

How is smoking maintained though increased dopamine activity

Answer 1

1. Stimulates specific ach which increases alertness
2. Causes a rise in dopamine activity in vental tegmantal area
   3.the UTA activity caused by nicotine is then projected by the nucleus acumbus
3. Nucleus accolades is a reward centre in the brain how dopamine rises
   Nucleus acc bus releases more dopamine and stimulates endorphins that reduce from GABA activity

Question 2

How can smoking occur through genetics

Answer 2

Inheriting a inability eg A1DrD2 gene can’t produce pleases naturally may engage in smoking behaviours

Question 3

Down regulation and up regulation

Answer 3

Down= decrease number of receptors, less sensitive , more nic

Up= number of receptors are increased